Advanced Diagnostic Laboratories

Collect

Plain red top or SST tube.

Specimen Preparation

Onsite [NJH]: Transport to lab within 1 hour.
Offsite: Separate serum from cells within 2 hours by centrifuge and aliquot into a labeled polypropylene or similar plastic tube.
Preferred volume: 1 mL serum

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

Reported

4 hour routine, 1 hour STAT

Department

Core Lab

Synonyms

K

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