Potassium, Serum
Fasting Required: Yes 10-12 hours

Specimen: Blood

Lab: Quest Diagnostics

Results: 1-2 business days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

Description: Potassium is an electrolyte that is vital to cell metabolism and muscle function. If potassium levels are too low or too high, there can be serious health consequences; a person may be at risk for developing shock, respiratory failure, or heart rhythm disturbances.