Tests are ordered for a client to measure the serum electrolytes potassium, sodium, and magnesium. What might an increase or decrease in the level of these electrolytes cause?
A) Cardiac tamponade
B) Cardiac dysrhythmia
C) Myocardial infarction
D) Angina
B
Feedback:
Important tests measure the serum electrolytes, such as potassium, sodium, and magnesium. An increase or decrease in the level of these electrolytes may cause cardiac dysrhythmia (irregular heartbeat).
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