Q: Muscle weakness in hypokalemia usually starts developing from? (select one)
A) upper body
B) lower body
Muscle weakness in hypokalemia usually occurs when potassium level goes below above 2.5 meq/L. unless there is an acute drop. Muscle weakness usually begins with the lower extremities, progresses to the trunk, and later involves upper extremities before preceding to paralysis.
Ahlawat SK, Sachdev A. Hypokalaemic paralysisPostgraduate Medical Journal 1999;75:193-197.