Potassium
Test Code
K
Description
Potassium measurements are useful in monitoring electrolyte balance in the diagnosis and treatment of disease conditions characterized by low or high blood potassium levels. Potassium is elevated in adrenal cortical insufficiency, acute renal failure and in some cases of diabetic acidosis. Potassium is decreased in diuretic administration and renal tubular acidosis.
Collect
Plain red top or SST tube.
Pediatric Collection
Minimum volume: 0.1 mL serum
Storage Transport Temp
Offsite: Frozen. Send serum Priority Overnight via FedEx and in a well insulated container on dry ice.
Stability
Stability after cell separation:
1 week at RT (15-25°C)
1 week refrigerated at 2-8°C
Performed
Monday - Friday
Methodology
Ion Selective Electrode
Turnaround Time
4 hour routine, 1 hour STAT
Department
Core Lab
Synonyms
K
Study Offerings
Not offered
Reference Interval
|
Potassium, Serum |
Human |
|
|
Male |
Female |
|
|
mmol/L |
||
|
1 day - 30 days |
3.9-6.9 |
3.9-6.9 |
|
31 days - 11 months |
3.6-6.8 |
3.6-6.8 |
|
1 year - 4 years |
3.2-5.7 |
3.2-5.7 |
|
5 years - 9 years |
3.4-5.4 |
3.4-5.4 |
|
10 years 15 years |
3.5-5.1 |
3.5-5.1 |
|
16+ years |
3.7-5.0 |
3.7-5.0 |
CPT Code
84132
New York Approved
FDA Approved or Cleared
FDA
Approved or Cleared