An older adult with heart failure is hospitalized during an acute exacerbation. To reduce cardiac workload, which intervention should the nurse include in the client's plan of care?
Rationale:
Providing a bedside commode for toileting reduces cardiac workload by minimizing the need for the client to walk to the bathroom, thereby conserving energy and preventing strain during an acute exacerbation of heart failure. This intervention helps limit physical exertion, which is crucial to avoid increased oxygen demand and worsening symptoms in a fragile cardiovascular state.
A: Assist with ambulation in the hallway increases physical exertion and oxygen consumption, potentially elevating cardiac workload during an acute heart failure exacerbation, which is not advisable for conserving energy.
B: Encourage active range of motion exercises elevates metabolic demand and cardiac stress, inappropriate during acute decompensation when energy conservation is paramount.
D: Teach to sleep in a side-laying position does not significantly affect cardiac workload or oxygen consumption, offering no direct benefit to reducing heart strain in this scenario.
When explaining dietary guidelines to a client with acute glomerulonephritis (AGN), which instruction should the nurse include in the dietary teaching?
Rationale:
Restrict sodium intake.
Restricting sodium intake helps manage fluid retention and hypertension commonly seen in acute glomerulonephritis (AGN). Sodium reduction decreases edema and reduces the workload on the kidneys, preventing further damage. This dietary modification supports controlling blood pressure and minimizing complications, making it essential teaching for clients with AGN to promote kidney function stabilization and overall recovery.
B: Encourage high-protein foods. Excessive protein can strain damaged kidneys, exacerbating the condition and leading to increased waste products, thus it is not advisable during acute glomerulonephritis management.
C: Increase potassium intake. Potassium levels may already be elevated in AGN; increasing potassium risks hyperkalemia, which can cause dangerous cardiac complications, so this recommendation is inappropriate.
D: Decrease fluid intake. Fluid restriction depends on edema and urine output; blanket reduction isn't standard. Sodium restriction more effectively controls fluid balance in acute glomerulonephritis than fluid limitation alone.
How much bilirubin can be bound to 1 gm of albumin?
Rationale:
1. Direct Answer: 1 gram of albumin can bind 8.5 mg of bilirubin.
2. Correct Option Explanation: Albumin serves as the primary carrier for bilirubin in the bloodstream, binding a specific amount to maintain bilirubin solubility and prevent its toxic effects. The binding capacity of 8.5 mg per gram of albumin is established through biochemical studies measuring bilirubin-albumin interaction, ensuring accurate physiological and clinical assessments.
3. B: 9.8 mg suggests a higher binding capacity not supported by empirical data, overestimating albumin’s affinity and saturation potential for bilirubin molecules in typical physiological conditions.
4. C: 10.5 mg exceeds established binding limits, inaccurately reflecting albumin’s capacity and potentially misleading clinical interpretations of bilirubin transport and related liver function evaluations.
5. D: 13.6 mg greatly overstates bilirubin binding, contradicting biochemical evidence, and would imply albumin holds more bilirubin than physically feasible, affecting understanding of bilirubin metabolism and toxicity risk.
Acute laryngotracheobronchitis in children:
Rationale:
Dexamethasone is known to shorten the duration of illness. This corticosteroid reduces airway inflammation and edema in acute laryngotracheobronchitis, leading to improved breathing and faster recovery. Clinical evidence supports its use to decrease hospital stay and symptom severity, making it an effective treatment option in managing croup symptoms in children.
A: Needs to be treated by broad-spectrum antibiotics Antibiotics target bacterial infections, but acute laryngotracheobronchitis is primarily viral; thus, antibiotics do not address the underlying cause or improve symptoms in this viral condition.
B: Humidified oxygen by tent needs to be administered in infancy Oxygen therapy is supportive but not mandatory for all cases; humidified oxygen tents are less commonly used today due to limited efficacy and practicality compared to more targeted interventions.
D: Adrenaline by nebuliser is absolutely contraindicated Nebulised adrenaline is actually used to reduce airway swelling temporarily in moderate to severe cases; it is not contraindicated but rather an important emergency treatment option.
Diagnosis of nocturnal enuresis can be made in:
Rationale:
Nocturnal enuresis can be diagnosed in a 4-year-old who has started bedwetting after attaining complete toilet control at 3½ years of age. This option fits the clinical definition of nocturnal enuresis, which involves repeated involuntary urination during sleep in a child beyond the typical age of bladder control. The history of prior continence and subsequent relapse confirms diagnosis.
A: A 3-year-old boy with recurrent bedwetting lacks the typical age threshold for diagnosis, as bedwetting before age 5 is often considered developmentally normal and not defined as nocturnal enuresis.
C: A 5-year-old girl recently staining underclothes at school suggests daytime urinary incontinence or urgency, which differs from nocturnal enuresis characterized by nighttime bedwetting only.
D: A 6-year-old recovering from a recent UTI may experience transient urinary symptoms, but enuresis diagnosis requires exclusion of underlying infections or medical causes.
The nurse is teaching a client with glomerulonephritis about self-care. Which dietary recommendations should the nurse encourage the client to follow?
Rationale:
Restrict protein intake by limiting meats and other high-protein foods.
Protein restriction helps reduce the workload on damaged kidneys by minimizing nitrogenous waste production, which is crucial in managing glomerulonephritis. Excess protein can exacerbate kidney damage and worsen symptoms. Therefore, limiting protein supports kidney function preservation and slows disease progression, aligning with standard dietary recommendations for clients with glomerulonephritis.
A: Increase intake of high-fiber foods, such as bran cereal This option does not directly address kidney workload or waste reduction essential for glomerulonephritis management. Fiber benefits digestion but is not a primary dietary focus for kidney protection.
C: Limit oral fluid intake to 500 ml per day Such severe fluid restriction is typically unnecessary unless specifically indicated by fluid overload or edema. Overly limiting fluids can cause dehydration and complicate care.
D: Increase intake of potassium-rich foods such as bananas or cantaloupe High potassium intake can lead to hyperkalemia in kidney disease, which risks cardiac complications; thus, increasing potassium is generally contraindicated in glomerulonephritis.
Which should the nurse consider when preparing a school-age child and the family for heart surgery?
Rationale:
Let the child hear the sounds of an ECG monitor. Familiarizing the school-age child with medical equipment, such as the ECG monitor sounds, helps reduce anxiety by making the environment less intimidating. This preparation supports coping by increasing understanding and predictability of the surgical experience, fostering cooperation, and promoting emotional comfort for both the child and family throughout the perioperative period.
A: Unfamiliar equipment should not be shown. Excluding exposure to medical devices increases fear and confusion, hindering the child’s ability to process and adapt to the surgical environment effectively.
C: Avoid mentioning postoperative discomfort and interventions. Omitting information about pain and treatments deprives the family and child of realistic expectations, limiting emotional readiness and trust in the care process.
D: Explain that an endotracheal tube will not be needed if the surgery goes well. This statement is misleading; airway management needs are determined by surgical and anesthetic requirements, not surgical success alone.
A 3-month-old infant who was previously healthy now has a persistent cough, bilateral lung crackles, and poor appetite. A grade III/VI, low-pitched, holosystolic murmur over the left lower sternal border and palpates the liver at one centimeter below the ribs. What diagnosis is likely?
Rationale:
Ventricular septal defect (VSD) is the likely diagnosis given the infant’s persistent cough, bilateral lung crackles, poor appetite, grade III/VI low-pitched holosystolic murmur at the left lower sternal border, and hepatomegaly.
VSD causes left-to-right shunting, leading to pulmonary overcirculation, congestive heart failure signs like crackles and hepatomegaly, and a holosystolic murmur best heard at the lower sternal border due to turbulent flow through the septal defect.
A: Atrial septal defect (ASD) Often presents with a systolic ejection murmur, fixed split S2, and less severe symptoms; it typically lacks hepatomegaly and holosystolic murmurs.
B: Coarctation of the aorta (COA) Usually causes hypertension and weak femoral pulses, not a holosystolic murmur or pulmonary crackles, making it inconsistent with this presentation.
C: Patent ductus arteriosus (PDA) Usually produces a continuous "machinery" murmur and bounding pulses, not a holosystolic murmur or hepatomegaly indicative of heart failure.
Which defect results in increased pulmonary blood flow?
Rationale:
Increased pulmonary blood flow results from an atrial septal defect. An atrial septal defect creates an abnormal opening between the atria, allowing oxygen-rich blood to flow from the left atrium into the right atrium, increasing blood volume in the pulmonary circulation. This left-to-right shunting elevates pulmonary blood flow, leading to potential pulmonary overcirculation and associated complications if untreated.
A: Pulmonic stenosis narrows the pulmonary valve, restricting blood flow to the lungs, thereby decreasing, not increasing, pulmonary blood flow. This defect causes right ventricular pressure overload rather than elevated pulmonary circulation volume.
B: Tricuspid atresia involves absence of the tricuspid valve, limiting blood flow from the right atrium to the right ventricle, which reduces pulmonary blood flow instead of increasing it.
D: Transposition of the great arteries results in parallel circulation without mixing, causing oxygen-poor blood to circulate systemically and oxygen-rich blood to circulate to the lungs, but does not inherently increase pulmonary blood flow volume.
Treatment options in the management of an intussusception include:
Rationale:
Air enema is a primary treatment option for managing intussusception.
Air enema effectively reduces intussusception by pushing the telescoped bowel back into place using controlled air pressure. It is preferred due to its non-invasiveness, rapid results, and minimal complications compared to surgery. This method also allows simultaneous diagnostic imaging, making it both therapeutic and confirmatory.
A: Contrast enema uses liquid contrast, increasing risk of perforation and complications, making it less favored compared to air enema's safer, controlled pressure technique.
C: Water enema lacks sufficient pressure and diagnostic capability, reducing its effectiveness and safety in resolving intussusception compared to air enema.
D: Open surgery is reserved for failed non-surgical attempts or complications, not first-line due to invasiveness and longer recovery than air enema.
Water excretion:
Rationale:
Water excretion is influenced by vasopressin. Vasopressin, also known as antidiuretic hormone, regulates water reabsorption in the kidney’s collecting ducts, adjusting urine concentration and volume. This hormone controls the permeability of water channels, allowing the body to retain or excrete water as needed, making it a primary factor in water balance and excretion mechanisms.
A: Is influenced by the proximal tubule The proximal tubule mainly reabsorbs solutes and water but does not directly regulate water excretion; its function is more about bulk reabsorption rather than fine-tuning water output.
C: Depends on erythropoietin Erythropoietin stimulates red blood cell production and has no role in water excretion or kidney water regulation processes.
D: Is influenced by the ascending limb of the loop of Henle The ascending limb reabsorbs ions but is impermeable to water, so it does not directly affect water excretion or control urine concentration.
Factors triggering renin stimulation:
Rationale:
Renin stimulation is triggered by hypovolaemia. Hypovolaemia, a state of decreased blood volume, reduces renal perfusion pressure, activating juxtaglomerular cells to secrete renin. This initiates the renin-angiotensin-aldosterone system, aiming to restore blood volume and pressure. Thus, hypovolaemia directly prompts renin release, unlike other factors that do not significantly influence this pathway or act through different mechanisms.
A: Hyponatraemia does not primarily stimulate renin secretion since low sodium levels mainly affect osmolarity rather than renal perfusion pressure, making it a less direct trigger for renin release in physiological regulation.
B: ACTH mainly regulates adrenal cortisol production and has minimal direct impact on renin secretion, thus it is not a primary factor in triggering renin release from the juxtaglomerular cells.
D: ANP promotes natriuresis and vasodilation, counteracting renin secretion by reducing blood volume and pressure signals that would otherwise stimulate renin release, making it an inhibitory rather than stimulatory factor.
The following statements concerning acute gastroenteritis in childhood are correct:
Rationale:
Intravenous fluid therapy is essential in severe cases. This treatment is crucial for managing dehydration caused by fluid loss during acute gastroenteritis in children. It helps restore electrolyte balance and maintain circulatory volume, preventing complications like hypovolemic shock. Severe cases require prompt IV rehydration to stabilize the patient, especially when oral intake is not feasible or insufficient for recovery.
B: Loperamide should be avoided due to its potential to worsen symptoms by slowing intestinal motility, which may prolong infection and increase the risk of toxic megacolon, especially in young children with acute gastroenteritis.
C: Persistent bacterial infection is not the commonest cause of failure to thrive after gastroenteritis; nutritional deficiencies and prolonged malabsorption more frequently contribute to growth problems post-infection.
D: Septicaemia is not a typical feature of Salmonella gastroenteritis; it generally causes localized intestinal infection, with septicaemia being a rare complication primarily in immunocompromised individuals.
Which of the following statements is incorrect regarding shock?
Rationale:
In hypovolemic shock mean arterial pressure is normal. Hypovolemic shock results from significant fluid loss, reducing blood volume and preload, which decreases cardiac output and subsequently lowers mean arterial pressure. Therefore, mean arterial pressure is typically decreased, not normal, making this statement incorrect in the context of shock pathophysiology and hemodynamic parameters.
A: In cardiogenic shock systemic vascular resistance is high reflects compensatory vasoconstriction to maintain perfusion despite poor cardiac output, aligning with known shock mechanisms. This accurately describes the increased afterload seen in cardiogenic shock to preserve arterial pressure.
B: In hypovolemic shock pulmonary capillary wedge pressure is reduced accurately identifies decreased preload due to fluid loss, leading to lower left atrial pressure. This hemodynamic change is consistent with volume depletion and diminished cardiac filling.
C: In distributive shock central venous pressure is increased highlights venous pooling and fluid redistribution causing elevated venous pressures. This aligns with vasodilation and altered vascular tone characteristic of distributive shock states like septic shock.
Common diseases presenting as a rash in infancy are:
Rationale:
Measles commonly presents as a rash in infancy. This viral infection typically causes a characteristic maculopapular rash appearing after initial symptoms like fever and cough, making it a classic example of a rash-causing disease in young children. Its distinct clinical features and prevalence during infancy differentiate it from other conditions listed, which either lack rash or are less common in this age group.
B: Parvovirus B19 infection often causes rash but is more typical in older children with fifth disease, not predominantly in infancy, making it less representative of common infantile rash diseases.
C: Leukaemia primarily presents with systemic symptoms and blood abnormalities; rash is not a usual initial manifestation in infancy, distinguishing it from infectious rash conditions.
D: Lymphoma generally involves lymphadenopathy and systemic signs without a primary rash; it is a malignancy less commonly associated with infancy rashes compared to infectious causes.
While assessing a client with degenerative joint disease, the nurse observes Heberden's nodes, large prominences on the client's fingers that are reddened. The client reports that the nodes are painful. Which action should the nurse take?
Rationale:
Discuss approaches to the chronic pain control with the client. This option is appropriate because Heberden's nodes are associated with osteoarthritis, causing joint pain and inflammation. Managing chronic pain is essential for improving the client’s quality of life. The nurse should focus on pain relief strategies rather than urgent interventions, as these nodes typically do not require immediate medical attention.
A: Review the client's dietary intake of high-protein foods addresses nutrition but does not directly relate to Heberden's nodes or their associated pain, making it irrelevant for this clinical finding.
B: Notify the healthcare provider of the finding immediately assumes an urgent complication, yet Heberden's nodes are common in degenerative joint disease and usually do not require immediate notification.
D: Assess the client's radial pulses and capillary refill time focuses on vascular status, which is unrelated to joint nodules and pain caused by degenerative changes in the fingers.
A client with multiple sclerosis has urinary retention related to sensorimotor deficits. Which action should the nurse include in the client's plan of care?
Rationale:
Teaching the client techniques for performing intermittent catheterization addresses urinary retention by enabling effective bladder emptying despite sensorimotor deficits. This method reduces infection risk, prevents bladder overdistension, and promotes independence. Intermittent catheterization is a standard, evidence-based intervention for neurogenic bladder in multiple sclerosis, ensuring safe and controlled management of urinary retention without relying on continuous catheter use or ineffective strategies.
B: Increasing fluid intake alone does not resolve retention caused by impaired bladder emptying and may exacerbate discomfort or risk of bladder overdistension. It lacks the mechanism to address sensorimotor deficits impacting urination.
C: Suggesting incontinence pads focuses on managing leakage rather than resolving retention, which involves difficulty emptying the bladder. Pads do not facilitate bladder emptying or prevent complications from urinary stasis.
D: Administering anticholinergic medications typically decreases bladder contractions and is used for overactive bladder, not retention. These drugs could worsen urinary retention by further impairing bladder emptying function.
Sudden death in an athlete immediately after forceful blunt trauma to the chest is most likely
Rationale:
Sudden death in an athlete immediately after forceful blunt trauma to the chest is most likely commotio cordis. This condition results from a precisely timed impact during a vulnerable phase of the cardiac cycle, causing fatal ventricular arrhythmias without structural cardiac damage. It typically occurs in young athletes and is a well-known cause of sudden cardiac arrest after chest trauma.
B: Myocardial infarction usually results from coronary artery disease and plaque rupture, not sudden blunt trauma in young athletes, making it an unlikely cause in this scenario.
C: Lacerated coronary artery involves structural damage that would likely cause massive bleeding and different clinical signs, which are not typical immediately after blunt chest trauma in athletes.
D: Ruptured cardiac tendineae lead to acute valvular dysfunction and heart failure symptoms, but they are not commonly triggered by a single blunt chest impact causing sudden death.
The Norwood procedure is used to correct:
Rationale:
The Norwood procedure is used to correct hypoplastic left heart syndrome. This complex surgery reconstructs the heart’s anatomy to enable the right ventricle to pump blood to both the lungs and the body, compensating for the underdeveloped left side. It is specifically designed for this congenital defect, making it unsuitable for conditions involving different structural abnormalities or shunts.
A: Transposition of the great vessels involves arterial switch operations, not Norwood; the procedure targets a different anatomical defect.
C: Tetralogy of Fallot requires repair of ventricular septal defects and pulmonary stenosis, which the Norwood does not address.
D: Patent ductus arteriosus is corrected by ligation or device closure, not by the extensive reconstructive Norwood surgery.
In the electrocardiogram of a 40-year old male, the QRS amplitude in lead I and aVF measured (+) 10 and (-)10mV respectively. The frontal QRS axis is
Rationale:
The frontal QRS axis is (-) 45°.
This axis value is derived by interpreting the positive QRS amplitude in lead I and the negative amplitude in lead aVF, placing the net vector between 0° and -90°. The equal magnitude but opposite polarity suggests a vector oriented in the upper left quadrant, consistent with an axis around -45°, reflecting left axis deviation.
A: (+) 15° This angle lies in the right lower quadrant, conflicting with the negative QRS amplitude in aVF, which indicates an upward or leftward vector, not downward as +15° suggests.
C: (-) 75° This degree is more extreme left axis deviation, but the equal positive and negative amplitudes imply a less steep angle closer to -45°, making -75° an overestimation.
D: (-) 90° A -90° axis would cause a zero amplitude in lead I due to perpendicularity, but lead I shows a strong positive amplitude, excluding this vertical leftward orientation.
The nurse is assessing a child with acute otitis media. Which finding should the nurse expect?
Rationale:
A bulging, red tympanic membrane is a classic sign of acute otitis media, indicating inflammation and infection within the middle ear. This finding results from fluid accumulation and increased pressure behind the eardrum, causing it to appear swollen and erythematous, which helps differentiate acute otitis media from other upper respiratory or ocular conditions during assessment.
A: Bilateral eye discharge and fever suggest conjunctivitis rather than middle ear infection, focusing on ocular symptoms unrelated directly to the tympanic membrane or middle ear inflammation.
C: Nasal congestion and headache primarily indicate upper respiratory infections or sinusitis, lacking the distinct middle ear signs necessary for diagnosing acute otitis media.
D: Persistent cough and sore throat are typical of respiratory tract infections, but they do not directly reflect middle ear involvement or tympanic membrane changes seen in otitis media.
An adult female client is diagnosed with restless leg syndrome and is referred to the sleep clinic. The healthcare provider prescribes ferrous sulfate (Feosol) 325 mg PO daily. Which laboratory values should the nurse monitor?
Rationale:
Serum iron and ferritin should be monitored. Monitoring these values is essential because ferrous sulfate is an iron supplement, and assessing serum iron and ferritin helps evaluate iron stores and effectiveness of treatment in restless leg syndrome. It also detects potential iron overload or deficiency, guiding dosage adjustments and preventing complications related to iron therapy.
A: Serum electrolytes are unrelated to iron supplementation and restless leg syndrome management, providing no direct information about iron status or treatment response.
B: Neutrophils and eosinophils measure white blood cell types involved in immune response, not iron levels or anemia related to ferrous sulfate therapy.
D: Platelet count and hematocrit assess clotting and red blood cell volume but do not specifically reflect iron stores or the impact of iron supplementation.
An older woman who experienced a cerebrovascular accident (CVA) has difficulty with visual perception and she only eats half of the food on her meal tray. Her family expresses concern about her nutritional status. How should the nurse respond to the family's concern?
Rationale:
Demonstrate the use of visual scanning during meals to the client and family. Visual scanning techniques help compensate for perceptual deficits caused by the CVA, improving the client’s ability to locate and identify food on the tray, thereby enhancing nutritional intake and independence during meals. This approach directly addresses the underlying visual perception difficulties.
A: Encourage the family to offer to feed the client when she does not eat her entire meal. This may promote dependence and does not address the root cause of the problem, which is the client’s visual perceptual deficit affecting meal intake.
B: Suggest that the family bring foods from home that the client enjoys. While familiar foods may improve appetite, this does not resolve the client’s difficulty with visual perception, which is the primary barrier to adequate nutrition.
C: Explain that weight loss will be reversed after the acute phase of the stroke has ended. Weight loss may persist due to ongoing perceptual problems; assuming automatic recovery ignores the need for targeted interventions like visual scanning training.
The nurse is monitoring an infant with a congenital heart disease closely for signs of heart failure. Which early sign should the nurse be most concerned about?
Rationale:
Tachycardia is the early sign the nurse should be most concerned about in an infant with congenital heart disease. Increased heart rate indicates the heart is working harder to meet the body's demands, signaling the onset of heart failure. Early detection allows timely intervention to prevent deterioration, as other symptoms may appear later or be less specific in infants.
A: Pallor reflects poor perfusion but usually occurs later; it is not the earliest indicator of heart failure in infants.
B: Cough often appears with respiratory infections or pulmonary congestion, not as the initial sign of heart failure.
D: Slow and shallow breathing contradicts typical heart failure symptoms, where rapid, labored breathing is more common early on.
A child with rheumatic fever begins involuntary, purposeless movements of her limbs. What does the nurse recognize that this indicates?
Rationale:
Involuntary, purposeless movements of limbs in a child with rheumatic fever indicate Sydenham’s chorea. This neurological disorder is a major manifestation of rheumatic fever, characterized by rapid, irregular, and jerky movements. It results from inflammation affecting the basal ganglia, disrupting motor control. Recognizing these symptoms helps in timely diagnosis and management of this autoimmune complication.
A: Seizure activity involves abnormal electrical brain discharges causing convulsions or loss of consciousness, differing from choreiform movements that are irregular, non-rhythmic, and purposeless, making this choice unsuitable.
B: Hypoxia refers to inadequate oxygen supply causing cyanosis, confusion, or respiratory distress, which does not specifically cause involuntary limb movements observed in this clinical scenario.
D: Decreasing level of consciousness implies reduced alertness or responsiveness, which contrasts with the presence of active, involuntary limb movements, indicating a different neurological process.
Recurrent Neisserial meningitis in children is suggestive of deficiency of ----- complement.
Rationale:
Recurrent Neisserial meningitis in children is suggestive of deficiency of C8 complement.
C8 is a critical component of the membrane attack complex (MAC) in the complement system, essential for lysing Neisseria bacteria. Deficiency impairs MAC formation, leading to increased susceptibility to Neisserial infections, particularly recurrent meningitis. This highlights the specific role of late complement components in defending against these pathogens.
A: C3 C3 deficiency broadly affects opsonization and immune complex clearance but does not specifically predispose to Neisserial meningitis. It causes susceptibility to pyogenic bacterial infections, not recurrent Neisseria infections.
B: C4 C4 deficiency mainly impairs the classical pathway and is linked to autoimmune diseases rather than increased risk for Neisserial meningitis. It lacks the direct role in membrane attack complex formation.
D: All This option incorrectly generalizes complement deficiencies; not all complement components cause recurrent Neisserial meningitis, only terminal components like C8 are directly involved in MAC-mediated bacterial lysis.
Inability to do which of the following in a 20-month child is cause for concern?
Rationale:
Inability to walk unaided in a 20-month-old child is cause for concern. Walking independently is a critical gross motor milestone expected by this age, reflecting proper neuromuscular development and coordination. Delays may indicate underlying developmental, neurological, or musculoskeletal issues requiring further assessment and intervention to support the child's overall growth and motor skill acquisition.
A: Speak in clear two to three word phrases This typically emerges closer to 24 months; slight delays at 20 months can be normal as language development varies widely among toddlers.
C: Kick a ball Kicking is a more advanced gross motor skill often developing after independent walking, so difficulty at 20 months does not immediately signal concern.
D: Build a tower of 8 blocks Constructing an 8-block tower is generally achieved later, around 30 months; inability at 20 months aligns with typical fine motor skill progression.
All the following statements about spontaneous coronary artery dissection are true, except
Rationale:
Spontaneous coronary artery dissection does not typically show the 'accordion sign' on intra-coronary imaging.
The 'accordion sign' is characteristic of guidewire-induced coronary artery deformation, not SCAD. SCAD is more common in young females, often involves proximal segments with immuno-inflammatory associations, and physical stress can cause intimal tears precipitating dissections. Therefore, the 'accordion sign' is unrelated to spontaneous coronary artery dissection.
A: More common in young females correctly highlights the demographic predominance of SCAD, particularly affecting younger women without traditional cardiovascular risk factors.
B: Proximal coronary involvement associated with immuno-inflammatory disease accurately reflects SCAD's pathophysiology involving immune-mediated vessel wall inflammation affecting proximal arteries.
D: Physical stress precipitates it by causing intimal tear aligns with the mechanism where mechanical stress induces vessel wall disruption leading to SCAD.
A child has been diagnosed with valvular disease following rheumatic fever (RF). During patient teaching, the nurse discusses the child's long-term prophylactic therapy with antibiotics for dental procedures, surgery, and childbirth. The parents indicate they understand when they say:
Rationale:
She will need to take the antibiotics for the rest of her life. Long-term prophylactic antibiotic therapy is essential in preventing recurrent rheumatic fever and further valvular damage. Lifelong treatment is recommended for patients with established rheumatic heart disease to protect against infective endocarditis during procedures that may introduce bacteria into the bloodstream, such as dental work, surgery, or childbirth.
A: She will need to take the antibiotics until she is 18 years old. This limits prophylaxis to adolescence, ignoring the lifelong risk of infection and recurrence in valvular disease patients.
B: She will need to take the antibiotics for 5 years after the last attack. Five years is insufficient for permanent valvular damage, failing to cover ongoing vulnerability to bacterial infections.
C: She will need to take the antibiotics for 10 years after the last attack. Ten years does not guarantee protection throughout life, leaving potential for late recurrence or infective endocarditis unaddressed.
Down syndrome and VSD
Rationale:
Pulmonary Hypertension is a late complication.
Pulmonary hypertension develops over time due to increased blood flow and pressure in the lungs from the ventricular septal defect (VSD). In children with Down syndrome, the pulmonary vascular resistance decreases more slowly, causing early and progressive pulmonary hypertension, making it a significant late complication rather than an immediate or absent concern.
A: Doesn't close spontaneously as in children without downs This option overlooks that spontaneous closure can occur but less frequently; it fails to emphasize the progressive complication of pulmonary hypertension seen in these cases.
B: Inaudible murmur is a characteristic feature / Murmur is not audible This choice inaccurately suggests murmur absence; murmurs typically present due to abnormal blood flow through the septal defect, making inaudibility uncommon.
D: If no murmur, condition need not be investigated This statement is misleading because silent VSDs can still cause significant complications, necessitating thorough evaluation regardless of murmur presence.