Quick Reference
- Full form
- Potassium (Serum)
- Sample type
- Blood
- Fasting
- Not required
- Marker measured
- 1
- Report turnaround
- Same day
- Available at
- All locations
About Potassium (Serum)
Potassium is a critical electrolyte for normal heart and muscle function, and even small imbalances can affect heart rhythm, making this one of the more closely monitored blood tests, especially for patients on certain medications.
No fasting is required, and results are available the same day.
How to Prepare
- No fasting required.
- No special preparation needed before your blood draw.
Frequently Asked Questions
What does a potassium test check?
It checks a critical electrolyte for normal heart and muscle function.
Do I need to fast before this test?
No fasting is required.
Why is potassium so closely monitored?
Even small imbalances can affect heart rhythm, making it especially important for patients on certain medications like diuretics.
What symptoms suggest a potassium imbalance?
Muscle weakness, cramps, or an irregular heartbeat can suggest a potassium imbalance.
How soon will my report be ready?
Same day.
Is home sample collection available?
Yes, in all City Care Lab service areas.
This page provides general health information and is not a substitute for medical advice. Speak with your doctor about your specific results and treatment.