Which of the following causes arrhythmia when elevated? 

A. Exercise
B. Body temperature
C. Potassium ions
D. Calcium ions
E. Phosphate ions

C. Potassium ions
A high concentration of potassium ions in the blood causes an arrhythmia.

Health Professions

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An appendectomy would be reported in the _____ section of ICD-10-PCS.

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