Monday, October 12, 2020

osborn wave


Q:  Which electrolyte imbalance may cause Osborn wave on EKG? (select one)

A) Hypokalemia
B) Hyperkalemia
C) Hypocalcemia
D) Hypercalcemia
E) Hypomagnesemia



Answer:  D

Osborn wave on EKG, which is usually a hallmark of hypothermia - and manifest around 32 C / 90 F is due to serum hypercalcemia. It can manifest in any other conditions with hypercalcemia due any other disease pathology. They have also been described after strokes.




#cardiology


Reference: 

Yan GX, Antzelevitch C. Cellular basis for the electrocardiographic J wave. Circulation. 1996 Jan 15;93(2):372-9. doi: 10.1161/01.cir.93.2.372. PMID: 8548912.

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