Potassium, Stool
Test Mnemonic
SK
CPT Codes
- 84999 - QTY (1)
LOINC ®
15202-5
Aliases
- Potassium, Fecal
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 5 g | Stool, random | Clean container | Refrigerated | Do not add saline or water to liquefy specimen. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 5 g | Stool, 24 hr | Clean container | Refrigerated | Mix 24-hour collection well. Do not add saline or water to liquefy specimen. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 g |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 1 hour |
| Refrigerated | 2 weeks |
| Frozen | 6 months |
Days Performed
Sun - Sat
Turnaround Time
3 - 4 days
Methodology
| Name | Description |
|---|---|
| Ion Selective Electrode (ISE) |
Reference Range
Special Info
A reference interval has not been established for fecal specimens. Formed or viscous stool specimens will be rejected.
Clinical Info
Evaluation of electrolyte balance