Potassium, Arterial (Blood Gas)

Specimen Type

Test ID LAB5304
CPT Code(s) 84132
Group/Individual Test Individual
Laboratory Core Laboratory-Blood Gas
Tube Station 31
Specimen Routine: 1.0 mL in 3cc syringe w/lyophilized heparin in BG Kit or SafePICO syringe. Comments
Micro: 0.5 mL in 1cc syringe w/lyophilized heparin in BG Kit or full capillary tube Comments
Availability Routine: 24 hrs/day
Reference Range Normal:
Age Ranges (mmol/L)
0-28 days 3.4-5.4
29-365 days 3.8-4.9
1-17years 3.1-4.3
≥18 years 3.4-4.6
Critical: Age: 29 days-adult:<2.7 or >5.8 mmol/L
Age: 0-28 days: <2.7 or >6.0 mmol/L
ED Critical: <2.7 or >6.3 mmol/L

Deliver Immediately to Core Laboratory.  Samples are stable at room temperature for up to 4 hours.  Do NOT store on ice.
Syringes with needles attached will NOT be accepted
Syringes may be obtained from Central Distribution.

Acceptable tubes are Lithium Heparin-NO GEL or Sodium Heparin; minimum volume 1.0 mL if collected in 7 mL tube.

Reviewed by Christopher Parker on December 09, 2021

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514