A nurse is caring for an older adult client who has heart failure. Which of the following findings should the nurse report to the provider?
Chest x-ray showing cardiomegaly
PaCO2 55 mmHg
Potassium level 4.5 mEq/L
Urinary output of 1,000 mL in 12 hr
The Correct Answer is B
Choice A reason: Chest x-ray showing cardiomegaly is not a new finding for the client who has heart failure, as it indicates enlargement of the heart due to increased workload and pressure on the cardiac chambers.
Choice B reason: PaCO2 55 mmHg is an abnormal finding for the client who has heart failure, as it indicates respiratory acidosis, which is a condition where the lungs cannot eliminate enough carbon dioxide and the blood becomes too acidic. This can be caused by pulmonary edema, which is a complication of heart failure that impairs gas exchange and ventilation.
Choice C reason: Potassium level 4.5 mEq/L is a normal finding for the client who has heart failure, as it indicates adequate electrolyte balance and renal function.
Choice D reason: Urinary output of 1,000 mL in 12 hr is a normal finding for the client who has heart failure, as it indicates adequate fluid status and cardiac output.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A: This is correct. Dehydration can cause electrolyte imbalance and affect the brain function, leading to confusion, dizziness, or lethargy.
Choice B: This is incorrect. Cool, clammy skin is a sign of shock, not dehydration. Dehydration can cause dry, warm skin.
Choice C: This is incorrect. Decrease in pulse rate is a sign of bradycardia, not dehydration. Dehydration can cause increase in pulse rate as the body tries to compensate for the low blood volume.
Choice D: This is incorrect. Increase in blood pressure is a sign of hypertension, not dehydration. Dehydration can cause decrease in blood pressure as the blood volume drops.
Correct Answer is B
Explanation
Choice A reason: Pupillary dilation is not a sign of opioid toxicity, but rather of opioid withdrawal or stimulant overdose. Opioid toxicity causes pupillary constriction or miosis.
Choice B reason: Hypotension is a sign of opioid toxicity sign of opioid toxicity, as opioids can depress the central nervous system and reduce cardiac output and peripheral resistance.
Choice C reason: Chest pain is not a sign of opioid toxicity, but rather of cardiac ischemia or infarction, which can be caused by cocaine or other stimulants.
Choice D reason: Diaphoresis is not a sign of opioid toxicity, but rather of opioid withdrawal or hyperthermia, which can be caused by ecstasy or other stimulants.

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