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Test Code LAB114 Potassium

Synonym

  • K

Specimen Required

Preferred Container/Tube: Mint Green Top
Acceptable Container/Tube: Mint Green Top, Gold SST Top
Specimen Volume: 3 mL
Specimen Minimum Volume: 1 mL

Specimen Stability Information

Ambient: 4 hours
Refrigerated: 5 days

Rejected Due To

  • Gross hemolysis
  • Gross icterus
  • Quantity not sufficient
  • Quality not acceptable

Reference Values

0-7 days: 3.2-5.5 mmol/L
8-30 days: 3.4-6.0 mmol/L
31-182 days: 3.5-5.6 mmol/L
183-365 days: 3.5-6.1 mmol/L
1-17 years: 3.3-4.6 mmol/L
18+ years: 3.5-5.0 mmol/L

Cautions

Falsely elevated serum/plasma potassium measurements may occur with lysis of red or white blood cells or platelets during or after blood collection.

Method Description

Indirect ion-selective electrode

Performing Lab

Clinical Lab UH
Clinical Lab University East
Clinical Lab James
Clinical Lab Martha Morehouse
Clinical Lab Spielman
Clinical Lab West Campus

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 day

Reporting Name

Potassium

CPT Code Information

84132

LOINC Code Information

2823-3