End
1 :

Hint : ↓K⁺ = cardiac instability.

Correct Answers:

  • Weak, irregular pulse


Rationale :
🔹Hypokalemia, defined as serum potassium less than 3.5 mEq/L, affects cardiac muscle conduction and neuromuscular function. 🔹A weak, irregular pulse is a key sign due to the heart’s sensitivity to low potassium, which can cause ventricular dysrhythmias, especially in critically ill patients. 🔹Other manifestations may include muscle cramps, fatigue, and ECG changes (e.g., flattened T waves). 🔹Hypokalemia often results from GI losses like vomiting and diarrhea, making continuous cardiac monitoring and potassium replacement essential.

Distractor Analysis :

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