A patient recently had a cardiac catheterization via right-radial approach and now has a compression device in place. The patient reports numbness and pain in the right hand. The cardiac-vascular nurse notes a diminished pulse, with a cool and cyanotic hand. The nurse:
Rationale:
Reduces the pressure on the puncture site.
The patient's symptoms—numbness, pain, diminished pulse, coolness, and cyanosis in the right hand—strongly indicate impaired arterial blood flow due to excessive compression at the radial puncture site. Reducing pressure immediately alleviates the constriction, potentially restoring circulation and preventing ischemic damage to the hand. This direct intervention addresses the probable cause of the acute neurovascular compromise.
A: calls the physician. Calling the physician without immediate action delays crucial intervention for acute ischemia. The nurse must first address the obvious circulatory compromise directly before escalating, as per standing orders for such a device.
B: performs an Allen test. An Allen test assesses collateral circulation before radial artery cannulation, not after an existing complication. Performing it now is irrelevant and wastes critical time when immediate intervention is required.
D: uses the Doppler ultrasound to assess for pulse signals. While Doppler can confirm pulse presence, the nurse already noted a "diminished pulse" and visible signs of ischemia (cool, cyanotic hand). Immediate action to relieve pressure is paramount over further assessment.
Mr. Ross experiences nausea and vomiting as the result of receiving large-volume irradiation to his thoracic region. Which is the best approach in planning to meet his nutritional needs?
Rationale:
Plan for frequent small meals of palatable foods is the best approach in planning to meet Mr. Ross' nutritional needs.
Nausea and vomiting from irradiation significantly impair appetite and food tolerance. Frequent, small
What is a condition where the heart is unable to pump blood effectively, leading to a buildup of fluid in the lungs and other parts of the body?
Rationale:
Heart failure is a condition where the heart is unable to pump blood effectively, leading to a buildup of fluid in the lungs and other parts of the body.
Heart failure precisely describes the heart's diminished capacity to circulate blood, resulting in systemic congestion. This reduced pumping efficiency causes fluid accumulation in pulmonary tissues, impairing respiration, and in peripheral extremities, manifesting as edema. It directly matches the comprehensive physiological description of the heart's functional impairment and its widespread consequences as outlined.
B: Cardiomyopathy refers to a disease of the heart muscle itself, which can cause heart failure but is not the encompassing condition of ineffective pumping and fluid retention.
C: Myocardial infarction, or a heart attack, involves the death of heart muscle tissue due to blocked blood supply. While it can precipitate heart failure, it describes the acute event, not the chronic state of pumping dysfunction.
D: Pulmonary edema is specifically the accumulation of fluid in the lungs, which is a symptom or consequence of heart failure, rather than the underlying condition of the heart's inability to pump.
A male client, age 78, complains of dizziness, especially when he stands up after sleeping or sitting. The client also informs the nurse that he periodically experiences nosebleeds and blurred vision. Which of the following conditions should the nurse assess for the client?
Rationale:
Postural hypotension should be assessed for the client.
Postural hypotension, also known as orthostatic hypotension, is characterized by a significant drop in blood pressure upon standing, leading to dizziness. The client's age and reported dizziness when changing positions strongly suggest this condition. Furthermore, symptoms like nosebleeds and blurred vision can be associated with underlying vascular issues or fluctuating blood pressure, warranting assessment for postural hypotension as the primary cause of his positional dizziness.
B: White-coat hypertension This refers to elevated blood pressure solely in a clinical setting due to anxiety, not explaining the client's consistent dizziness, nosebleeds, and blurred vision at home or in daily life.
C: Postural hypertension Postural hypertension involves an increase in blood pressure upon standing, which would typically cause different symptoms than the dizziness reported from a drop in pressure.
D: White-coat hypotension White-coat hypotension describes lower blood pressure readings in a clinical setting compared to home, which does not align with the client's symptomatic presentation of dizziness and other issues.
A 6-year-old child has been diagnosed with coarctation of the aorta. Lately, he has been complaining when he comes in from recess. The health nurse should question the child about which of the following?
Rationale:
Weakness and pain in legs.
Coarctation of the aorta significantly restricts blood flow to the lower extremities, especially during physical exertion like recess. The reduced perfusion results in inadequate oxygen supply to
The client is taking Flecainide for arrhythmias. What type of anti- arrhythmic medication is this:
Rationale:
Flecainide is a Class IC anti-arrhythmic medication.
Flecainide belongs to Vaughan Williams Class IC antiarrhythmics. These medications significantly depress phase 0 depolarization
Adverse reactions from non-cardio-selective beta blockers include which of the following? Select all that apply.
Rationale:
An adverse reaction from non-cardio-selective beta blockers can include increases heart rate.
Sudden discontinuation of non-cardio-selective beta blockers can cause a rebound effect, leading to
Which of the following is a chronic respiratory disease characterized by the irreversible obstruction of airflow?
Rationale:
Chronic obstructive pulmonary disease (COPD) is a chronic respiratory disease characterized by the irreversible obstruction of airflow.
COPD encompasses chronic bronchitis and emphysema, conditions primarily caused by long-term exposure to irritants like cigarette smoke. It leads to progressive, persistent airflow limitation that is not fully reversible. This chronic inflammation damages airways and lung tissue, impairing gas exchange and causing symptoms such as shortness of breath, coughing, and wheezing, significantly impacting patient quality of life.
B: Asthma Asthma involves reversible airway inflammation and bronchoconstriction, typically triggered by allergens or irritants, allowing airflow obstruction to improve with treatment.
C: Pulmonary edema Pulmonary edema describes fluid accumulation in the lungs, often due to heart failure, impairing oxygen exchange without directly causing irreversible airway obstruction.
D: Bronchiectasis Bronchiectasis features permanent, abnormal widening of the bronchi, leading to mucus buildup and recurrent infections, but its primary characteristic isn't irreversible airflow obstruction in the same manner as COPD.
An infant with a congenital cyanotic heart defect has a complete blood count drawn, revealing an elevated red blood cell (RBC) count. Which condition do these findings indicate?
Rationale:
Hypoxia compensation is indicated by the elevated red blood cell count in an infant with a congenital cyanotic heart defect.
Congenital cyanotic heart defects cause chronic hypoxemia, meaning persistently low oxygen levels in the blood. In response to this inadequate oxygen delivery to tissues, the body stimulates increased production of red blood cells (erythrocytosis) to enhance oxygen-carrying capacity. An elevated RBC count in this scenario precisely reflects the physiological adaptation mechanism attempting to counteract the chronic oxygen deficiency caused by the underlying cardiac condition.
A: Anemia Anemia denotes a deficiency in red blood cells or hemoglobin, leading to reduced oxygen transport. The observed elevated red blood cell count directly contradicts this condition, indicating an excess, not a deficit.
B: Dehydration Dehydration can cause a relative increase in hematocrit due to plasma volume reduction. However, the primary driver for an absolute RBC count elevation in a cyanotic heart defect is chronic low oxygen, not a fluid imbalance.
C: Jaundice Jaundice manifests as yellowing of the skin and eyes, resulting from elevated bilirubin levels. This condition is entirely
A nurse is caring for an infant with tetralogy of Fallot. Which drug should the nurse anticipate administering during a tet spell?
Rationale:
Meperidine (Demerol) should be anticipated during a tet spell.
Meperidine is a potent opioid analgesic that reduces pulmonary vasoconstriction and systemic vascular resistance, thereby decreasing right-to-left shunting and improving pulmonary blood flow during a hypercyanotic spell. Its sedative effects also calm the infant, reducing oxygen demand and alleviating the spell's severity by breaking the cycle of agitation and hypoxia.
A: Propranolol (Inderal) This beta-blocker is used for prophylaxis to prevent tet spells by reducing infundibular spasm, not for acute intervention during an active hypercyanotic crisis.
B: Morphine While an opioid, morphine can cause respiratory depression and hypotension, which could exacerbate the compromised cardiopulmonary state during an acute tet spell, making meperidine a safer choice.
D: Furosemide (Lasix) This loop diuretic reduces fluid overload and blood volume. It has no direct role in alleviating the acute pulmonary outflow obstruction or systemic vascular resistance imbalances characteristic of a tet spell.
Which measure would be most useful in evaluating a client's compensation in chronic congestive heart failure?
Rationale:
Daily weight assessment would be most useful in evaluating a client's compensation in chronic congestive heart failure.
Daily weight assessment is crucial for monitoring fluid retention, a primary indicator of worsening chronic congestive heart failure. A sudden weight gain often signifies fluid accumulation, indicating decompensation and the need for intervention. This simple, non-invasive measure allows for early detection of fluid overload, enabling timely adjustments to diuretics or other treatments to maintain cardiac compensation and prevent acute exacerbations.
A: Weekly digoxin blood level assessment Digoxin levels primarily assess therapeutic range and toxicity, not directly the daily fluid balance or overall compensation status of chronic heart failure.
C: Hourly urinary output Hourly urinary output is more relevant for acute conditions like shock or acute kidney injury, offering less insight into long-term fluid balance trends in stable chronic heart failure.
D: Monthly activity level assessment Monthly activity level provides a general overview of functional status, but it lacks the immediate, precise data needed to detect subtle, daily shifts in fluid retention indicative of cardiac compensation.
The client on spironolactone (Aldactone) should avoid which type of food?
Rationale:
Foods high in potassium should be avoided by a client on spironolactone (Aldactone).
Spironolactone is a potassium-sparing diuretic, meaning it increases water and sodium excretion while retaining potassium. Consuming foods rich in potassium alongside this medication significantly elevates the risk of hyperkalemia, a dangerous condition characterized by excessively high potassium levels in the blood. This can lead to serious cardiac arrhythmias and other severe health complications, thus necessitating strict dietary restrictions to maintain electrolyte balance.
B: Foods high in sodium Spironolactone actually helps excrete sodium, making sodium restriction generally beneficial for blood pressure control, not something to avoid due to the drug itself. The medication's primary action reduces sodium reabsorption.
C: Foods high in calcium Spironolactone does not directly impact calcium metabolism in a way that necessitates avoiding calcium-rich foods. Calcium intake is typically managed based on other health factors, not specifically due to this diuretic's mechanism of action.
D: Foods high in chloride Chloride often accompanies sodium, and while
An infant with a congenital cyanotic heart defect has a complete blood count drawn, revealing an elevated red blood cell (RBC) count. Which condition do these findings indicate?
Rationale:
Hypoxia compensation indicates the elevated red blood cell count in an infant with a congenital cyanotic heart defect.
Cyanotic heart defects cause chronic oxygen desaturation (hypoxia). The body's natural response to prolonged low oxygen levels is to stimulate erythropoietin production, leading to increased red blood cell synthesis. This physiological adaptation, known as polycythemia, aims to enhance oxygen-carrying capacity to tissues, thereby compensating for the insufficient oxygen delivery due to the underlying cardiac anomaly. This compensatory mechanism is a hallmark finding in such infants.
A: Anemia involves a reduced red blood cell count or hemoglobin level, directly contradicting the finding of an elevated RBC count presented in the clinical scenario.
B: Dehydration can cause a relative increase in hematocrit due to plasma volume reduction, but it wouldn't be the primary long-term physiological response to chronic cyanosis in a congenital heart defect.
C: Jaundice is characterized by yellowing of the skin due to elevated bilirubin, which is unrelated to the red blood cell count findings or the compensatory mechanisms for cyanotic heart disease.
The client is on hydrochlorothiazide and digoxin. What effect can the nurse expect?
Rationale:
Hydrochlorothiazide decreases potassium, increasing the risk of digoxin toxicity.
Hydrochlorothiazide is a thiazide diuretic known to cause hypokalemia by increasing potassium excretion. Low potassium levels directly potentiate the effects of digoxin on cardiac muscle, making the heart more susceptible to digoxin's therapeutic and toxic actions. This interaction significantly elevates
The client has atrial fibrillation. What can the nurse say about the P wave?
Rationale:
The P wave is absent.
In atrial fibrillation, the atria quiver chaotically instead of contracting effectively. This disorganized electrical activity prevents discrete atrial depolarization, meaning a distinct P wave, which represents atrial contraction, cannot form. Instead, the ECG shows irregular undulating baseline deflections, often called fibrillatory waves (f waves), reflecting the chaotic atrial activity, making the P wave visually unidentifiable on the tracing.
A: It precedes a long PR interval A distinct P wave is not present in atrial fibrillation, so there is no measurable PR interval to evaluate, long or otherwise. The chaotic atrial activity prevents this normal, sequential conduction pattern.
B: It falls on the previous T wave This describes a P wave occurring too early, potentially causing R-on-T phenomenon in ventricular tachycardia, but it's not characteristic of atrial fibrillation where P waves are not discernible.
D: It is peaked Peaked P waves, also known as P pulmonale, indicate right atrial enlargement and increased pressure, typically seen in conditions like COPD, not the chaotic atrial activity of atrial fibrillation.
The client on spironolactone (Aldactone) has a potassium level of 5.8 mEq/L. What is the nurse's priority action?
Rationale:
Hold the spironolactone and notify the healthcare provider.
Spironolactone is a potassium-sparing diuretic, meaning it increases potassium levels. A potassium level of 5.8 mEq/L indicates hyperkalemia, which can lead to serious cardiac arrhythmias. Holding the medication is crucial to prevent further potassium accumulation, while promptly notifying the healthcare provider ensures immediate intervention to manage the elevated potassium and adjust the client's treatment plan effectively, safeguarding cardiac function.
B: Administer a potassium supplement. The client already has dangerously high potassium; adding more would exacerbate life-threatening hyperkalemia, potentially causing severe cardiac dysrhythmias and arrest due to increased myocardial excitability.
C: Continue the spironolactone as ordered. Persisting with spironolactone administration would dangerously elevate the client's already high potassium levels further, risking severe cardiac complications due to aggravated hyperkalemia and potential dysrhythmias.
D: Increase the dose of spironolactone. Augmenting the spironolactone dosage would significantly intensify potassium retention, critically worsening the existing hyperkalemia and precipitating profound cardiac instability, demanding immediate cessation of the drug.
To assess whether Mr. Young's synchronous pacemaker is working properly, which statement do you need to remember about a synchronous pacemaker?
Rationale:
His pacemaker will fire only when his own heart rate drops below 72 beats per minute.
A synchronous pacemaker, also known as a demand pacemaker, monitors the heart's intrinsic electrical activity. It
A patient with atrial fibrillation is ambulating in the hallway on the coronary step-down unit and suddenly tells you, 'I feel really dizzy.' Which action should you take first?
Rationale:
Help the patient to sit down.
When a patient reports sudden dizziness while ambulating, the immediate priority is patient safety to prevent a fall and potential injury. Assisting them to a seated position promptly stabilizes their posture, reduces the risk of collapse, and allows for rapid assessment in a secure, controlled environment. This protective measure safeguards the patient while further diagnostic steps are planned.
B: Check the patient's apical pulse. Checking the apical pulse is an assessment, not an immediate safety intervention. While important, it delays stabilizing the dizzy patient, potentially increasing fall risk before vital information is gathered about the underlying cause.
C: Take the patient's blood pressure. Taking blood pressure is also an assessment and should follow stabilization. Attempting this while the patient is actively dizzy and potentially losing balance could compromise safety and delay critical fall prevention measures.
D: Have the patient breathe deeply. Deep breathing might offer some comfort but does not address the immediate physical instability of dizziness or prevent a fall. It is not the priority action for a patient experiencing a sudden sensation of collapse.
Which structure serves as the major chemoreceptor of the heart?
Rationale:
The carotid body serves as the major chemoreceptor of the heart.
The carotid body is a critical chemoreceptor located at the bifurcation of the common carotid artery. It primarily monitors arterial blood oxygen levels (pO2), but also responds to changes in carbon dioxide (pCO2) and pH. Its sensory neurons transmit signals via the glossopharyngeal nerve, influencing respiratory and cardiovascular control to maintain homeostatic balance, making it a primary sensor for systemic blood gas chemistry.
B: Aortic body These chemoreceptors are located in the aortic arch and respond to similar blood gas changes as the carotid body but play a comparatively less dominant role in overall cardiorespiratory reflex regulation.
C: Vagus nerve The vagus nerve transmits efferent parasympathetic signals to the heart and afferent sensory information from various visceral organs, but it is a nerve pathway, not a chemoreceptor structure itself.
D: SA node The sinoatrial (SA) node is the heart's natural pacemaker, initiating electrical impulses that regulate heart rate. It possesses no inherent chemoreceptive function for blood gas monitoring.
What test measures the electrical activity of the heart to detect arrhythmias and other heart conditions?
Rationale:
An Electrocardiogram (ECG or EKG) measures the electrical activity of the heart to detect arrhythmias and other heart conditions.
An Electrocardiogram (ECG or EKG) is the definitive test for assessing the heart's electrical impulses. It records these signals as waves, providing crucial data on heart rate, rhythm, and the timing of electrical events. This diagnostic tool precisely identifies abnormalities like arrhythmias, conduction disturbances, and signs of myocardial ischemia, making it essential for diagnosing various cardiac pathologies.
B: Chest X-ray A chest X-ray provides static images of the heart's size and lung fields, offering structural information rather than directly measuring the dynamic electrical impulses responsible for heart rhythm.
C: Stress test A stress test evaluates cardiac function and blood flow during physical exertion, primarily assessing coronary artery disease and exercise tolerance, not the heart's intrinsic electrical activity at rest.
D: Arterial blood gas (ABG) An arterial blood gas (ABG) analyzes oxygen, carbon dioxide, and pH levels in the arterial blood, reflecting respiratory and metabolic status, unrelated to cardiac electrical function.
A nurse is evaluating a client with left- sided heart failure. Which finding should the nurse expect to assess?
Rationale:
Dyspnea is an expected finding when assessing a client with left-sided heart failure.
Dyspnea is a primary manifestation of left-sided heart failure because the impaired left ventricle causes blood to back up into the lungs. This increased pulmonary venous pressure leads to fluid accumulation in the alveoli, known as pulmonary edema. The fluid impairs gas exchange, making breathing difficult and labored, especially during exertion or when lying flat.
A: Ascites is typically associated with right-sided heart failure, where systemic venous congestion leads to fluid accumulation in the peritoneal cavity. Left-sided failure primarily impacts pulmonary circulation, not directly causing abdominal fluid buildup.
C: Hepatomegaly, or an enlarged liver, results from systemic venous congestion causing blood to back up into the hepatic circulation. This manifestation is a hallmark sign of right-sided heart failure, not the primary presentation of left-sided ventricular dysfunction.
D: Jugular vein distention signifies elevated central venous pressure and systemic fluid overload. This physical finding is a classic indicator of right-sided heart failure, where the right ventricle fails to pump effectively, causing venous blood to accumulate.
If Mr. G experiences ventricular fibrillation, which drug would the nurse prepare to administer?
Rationale:
Epinephrine would be the drug the nurse prepares to administer if Mr. G experiences ventricular fibrillation.
Epinephrine is a potent vasoconstrictor and cardiac stimulant, crucial during cardiac arrest rhythms like ventricular fibrillation. It increases myocardial contractility, heart rate, and systemic vascular resistance, thereby improving coronary and cerebral perfusion pressure during resuscitation efforts. This alpha and beta-adrenergic agonist enhances the likelihood of successful defibrillation and spontaneous circulation return.
A: Morphine Morphine is an opioid analgesic primarily used for pain relief, not for treating ventricular fibrillation. It depresses the central nervous system and respiratory drive, making it inappropriate for cardiac arrest management.
B: Digitalis Digitalis (digoxin) strengthens heart muscle contractions and slows heart rate, often used for heart failure or atrial fibrillation. It is ineffective for ventricular fibrillation and could worsen outcomes in cardiac arrest.
D: Atropine Atropine is an anticholinergic used to treat symptomatic bradycardia by blocking vagal nerve effects. It does not address the chaotic electrical activity of ventricular fibrillation and is not indicated for this life-threatening arrhythmia.
The client has several PVCs in a row on a standard EKG. What is this rhythm called?
Rationale:
Ventricular tachycardia is the rhythm called when several PVCs appear in a row on an EKG.
When three or more premature ventricular contractions (PVCs) occur consecutively, the rhythm transitions into ventricular tachycardia. This sustained series of aberrant ventricular depolarizations indicates a re-entrant circuit or enhanced automaticity within the ventricles, leading to a rapid, potentially life-threatening rhythm originating below the Bundle of His. This pattern signifies a distinct and concerning arrhythmia requiring immediate attention.
A: Frequent PVCs Frequent PVCs describe numerous isolated PVCs occurring over a period but not necessarily in consecutive runs. This term indicates their quantity, not the specific rhythm resulting from a sustained sequence.
C: Atrial tachycardia Atrial tachycardia originates in the atria, above the ventricles, and involves rapid atrial depolarizations, typically presenting with narrow QRS complexes, which is distinct from the wide complexes of ventricular origin.
D: Supraventricular tachycardia Supraventricular tachycardia encompasses rhythms originating above the ventricles, including atrial tachycardia, but is characterized by narrow QRS complexes, unlike the wide, bizarre QRS morphology seen with consecutive PVCs.
When palpating the patient's popliteal pulse, the nurse feels a vibration at the site. How should the nurse record this finding?
Rationale:
Thrill of the popliteal artery is the correct finding to record when the nurse feels a vibration at the popliteal pulse site.
A thrill is a palpable vibration over a blood vessel or heart, indicating turbulent blood flow. Feeling a vibration at the popliteal pulse site directly corresponds to the definition of a thrill, which often signifies an underlying vascular abnormality like an aneurysm or an arteriovenous fistula. Recording "thrill" accurately describes this specific tactile sensation experienced during palpation.
A: Thready, weak pulse A thready, weak pulse describes a low-volume, easily obliterated arterial pulsation, not a palpable vibration. This refers to pulse strength, not a tactile tremor.
B: Bruit at the artery site A bruit is an audible vascular sound, a whooshing noise heard with a stethoscope, not a vibration felt by palpation. It is perceived acoustically, not tactually.
C: Bounding pulse volume A bounding pulse indicates a strong, full, and easily palpable pulsation, reflecting high pulse pressure, not a vibratory sensation. This describes intensity, not a tremor.
An elderly client is diagnosed with a condition in which calcium causes the arteries to lose elasticity. As the left ventricle contracts, sending oxygenated blood from the heart, the rigid arterial vessels fail to stretch. What is the medical diagnosis to which this condition refers?
Rationale:
Arteriosclerosis is the medical diagnosis to which this condition refers.
Arteriosclerosis precisely describes the hardening and loss of elasticity in arteries, often due to calcium deposits. The client's arteries, rigid and unable to stretch with each ventricular contraction, perfectly illustrate this condition. This structural change impairs blood flow dynamics and increases peripheral resistance, directly aligning with the described physiological symptoms of non-elastic vessels impeding proper blood distribution.
B: Coronary occlusion This refers to a blockage in the coronary arteries, typically by a thrombus or embolus, rather than a generalized hardening of arterial walls as described.
C: Ischemia Ischemia signifies insufficient blood flow to tissues, causing oxygen deprivation. While it can result from arteriosclerosis, it describes a consequence, not the underlying arterial hardening itself.
D: Atherosclerosis Atherosclerosis involves plaque buildup within arteries, a type of arteriosclerosis. However, the question specifically highlights calcium-induced rigidity and elasticity loss, which arteriosclerosis broadly encompasses.
Which condition is characterized by the weakening and rupture of the walls of the alveoli in the lungs, reducing the surface area available for gas exchange?
Rationale:
Emphysema is characterized by the weakening and rupture of the walls of the alveoli in the lungs, reducing the surface area available for gas exchange.
Correct Option Explanation: Emphysema involves the progressive destruction of alveolar walls, merging small air sacs into larger, less efficient ones. This irreversible damage significantly diminishes the total surface area crucial for efficient oxygen uptake and carbon dioxide removal. The loss of elasticity also impairs exhalation, trapping air within the damaged lung tissue, leading to breathlessness and chronic respiratory impairment.
Incorrect Options Explanation:
B: Bronchitis involves inflammation and narrowing of the bronchial tubes, increasing mucus production and causing a persistent cough. It primarily affects airways, not the structural integrity or surface area of the alveoli themselves.
C: Atelectasis describes the partial or complete collapse of a lung or lobe, preventing full inflation. This condition results from airway obstruction or pressure, rather than alveolar wall destruction and surface area reduction.
D: Pulmonary fibrosis involves the thickening and scarring of lung tissue, making it stiff and less elastic. This impairs gas exchange by hindering lung expansion and diffusion, but does not involve alveolar wall rupture.
The nurse is teaching the client about taking an ACE inhibitor. A typical side effect of an ACE inhibitor explained to the client is what?
Rationale:
A typical side effect of an ACE inhibitor explained to the client is Cough.
Angiotensin-converting enzyme (ACE) inhibitors frequently cause a persistent, dry cough in clients. This side effect is attributed to the accumulation of bradykinin in the respiratory tract, as ACE is also responsible for bradykinin degradation. The cough typically develops within weeks to months of starting the medication and resolves upon discontinuation, making it a common reason for switching antihypertensive agents.
B: Bradycardia ACE inhibitors do not typically induce bradycardia; instead, they usually have minimal direct effect on heart rate. Bradycardia might be associated with other cardiovascular medications, but not specifically ACE inhibitors.
C: Hypokalemia ACE inhibitors actually tend to cause hyperkalemia, not hypokalemia, by inhibiting aldosterone secretion, which reduces potassium excretion. Monitoring potassium levels is crucial due to this potential electrolyte imbalance.
D: Weight gain Weight gain is not a recognized or common side effect associated with ACE inhibitor therapy. These medications primarily influence blood pressure regulation and fluid balance, without typically promoting an increase in body mass.
A patient admitted to the hospital for evaluation of chest pain has no serum cardiac markers 4 hours after the onset of pain. A noninvasive diagnostic test that can differentiate angina from other types of chest pain is a(n)
Rationale:
An exercise stress test is a noninvasive diagnostic test that can differentiate angina from other types of chest pain.
An exercise stress test evaluates the heart's response to increased demand, mimicking conditions that provoke angina. With negative cardiac markers after 4 hours, acute myocardial infarction is less likely. This noninvasive test can induce ischemic symptoms or ECG changes, directly demonstrating exertional angina by observing the heart's function under stress, thereby distinguishing it from non-cardiac chest pain.
What is a procedure to remove fluid or air from the pleural space to help a patient breathe easier?
Rationale:
Thoracentesis is a procedure to remove fluid or air from the pleural space to help a patient breathe easier.
Thoracentesis involves inserting a needle into the pleural space between the lung and chest wall. This therapeutic intervention precisely drains accumulated fluid (pleural effusion) or air (pneumothorax), alleviating pressure on the lungs. By reducing this external compression, the procedure effectively restores lung expansion and significantly improves the patient's respiratory function, making breathing easier and more efficient.
B: Bronchoscopy A bronchoscopy involves inserting a flexible tube into the airways to visualize the trachea and bronchi internally. It's a diagnostic tool for inspecting the respiratory tract, not for removing fluid or air from the surrounding pleural space.
C: Chest X-ray A chest X-ray is a radiographic imaging technique used to visualize the lungs, heart, and bones. It helps diagnose conditions like fluid or air accumulation but does not perform the actual removal procedure.
D: CT scan A CT scan uses X-rays and computer processing to create detailed cross-sectional images of the body. This advanced diagnostic imaging precisely identifies pathologies within the chest but is not an intervention for therapeutic fluid or air removal.