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Question 1 of 48

After reviewing the morning laboratory findings for four clients, which client should the nurse follow up with first? Reference Range: International Normalized Ratio [0.8 to 1.1], Blood Glucose 74 to 106 mg/dL (4.1 to 5.9 mmol/L)], Potassium [3.5 to 5 mEq/L (3.5 to 5 mmol/L)], Brain Natriuretic Peptide (BNP) [less than 100 pg/mL (less than 100 ng/L)]

Rationale:
The brain natriuretic peptide (BNP) assay for a client with shortness of breath after a myocardial infarction (MI) increases to 1000 pg/mL (1000 ng/L). This BNP level far exceeds the normal range, indicating severe heart failure or worsening cardiac function, which requires immediate attention to prevent life-threatening complications. Elevated BNP signals urgent clinical deterioration post-MI. B: The international normalized ratio (INR) of 2.5 for a client on warfarin is within therapeutic range for many indications, not necessitating immediate intervention but routine monitoring to balance bleeding and clotting risks. C: A serum glucose level of 150 mg/dL in a client on corticosteroids is elevated but commonly expected; it requires monitoring and management but is not as urgent as critical cardiac markers. D: A potassium level of 5 mEq/L is at the upper limit of normal, especially in dialysis patients, and does not demand immediate follow-up unless it rises further or causes symptoms.