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HelpTest Code K Potassium Level
EHR Test Codes
| Test Code | Test Name | |
| Atlas | K | Potassium |
| Cerner | Potassium Level |
Specimen Requirements
Preparation of Patient:
None
Container Type:
Green Top 5mL Lithium Heparin Separator Tube
Or
Gold Top 6mL SST Gel & Clot Activator Tube
Specimen Type:
Plasma or Serum
Specimen Volume:
2.5 mL Plasma or Serum minimum .5 mL
Specimen Handling/Transport:
Separate plasma or serum from cells within 2 hours of collection.
Transport ambient room temperature.
Specimen Stability/Storage:
5 days refrigerated 2-8°C
Performing Laboratory
Munson Healthcare Laboratories
Chemistry Department
Priority, Frequency, & Turnaround
Priority:
STAT, ASAP, Non-Emergent
Frequency:
24 hours 7 days a week
Turnaround:
0 - 1 days
STAT 45 minute from receipt in lab
Methodology
Ion-Selective Electrode
Reporting
Reference Range:
3.4 - 5 mmol/L
Critical Decision:
0 years to 21 years ≤ 2.5 or ≥ 6.5 mmol/L
21 years and up ≤ 2.5 or ≥ 6.0 mmol/L
Note: Critical values are called to the provider and communicated as critical. Documentation of the call is recorded in the patient record.
Clinical Significance
Potassium, the major intracellular cation, contributes to cellular activity. Potassium is increased in urinary obstruction, tissue damage, primary adrenal insufficiency and diabetes mellitus. Hypokalemia exists in prolonged diarrhea and vomiting, diuretic administration and mineralocorticoid excess.
CPT Code(s)
84132