Use Case Study to answer the following questions.
Which of the following assessment findings is most concerning in a patient with hypokalemia?
Flattened T waves on ECG
Muscle cramps
Fatigue
Decreased bowel sounds
The Correct Answer is A
Rationale:
A. This is an early and potentially serious sign of cardiac involvement in hypokalemia. It can lead to life-threatening arrhythmias such as ventricular tachycardia or fibrillation. Continuous cardiac monitoring is essential in patients with low potassium levels.
B. Muscle cramps – Common in hypokalemia due to muscle cell irritability, but not immediately life-threatening like cardiac effects.
C. Fatigue is a general symptom of hypokalemia, but nonspecific and not as critical as ECG changes.
D. Decreased bowel sounds – Reflects reduced smooth muscle activity (hypokalemia can slow GI motility), but this is also less critical than cardiac dysrhythmias.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale:
A. Counting wet diapers provides general insight into fluid output, but it is not the most accurate measure of overall fluid status.
B. Measuring head circumference is useful for assessing neurological changes or growth, not hydration.
C. Daily weight is the most accurate and sensitive indicator of fluid balance in infants, especially when performed consistently.
D. Vital signs can reflect dehydration, but they are less reliable than daily weight for ongoing monitoring of rehydration progress.
Correct Answer is B
Explanation
Rationale:
A. Introducing a regular diet is important but not the immediate priority in severe diarrhea.
B. Rehydration is the most critical initial step to prevent or treat dehydration and shock.
C. Maintaining fluid therapy is important after rehydration is initiated but not the first action.
D. Assessing fluid balance is necessary but secondary to initiating rehydration.
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