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Test Code 356 pH, Capillary

Additional Codes


PowerChart: pH Capillary


Specimen Requirement

Heparin capillary blood is required.

Additional Specimen Collection Information

Collect blood via capillary puncture into blood gas heparinized capillary tubes. The extremity to be punctured must be pre-warmed for 3-10 minutes using a heel warmer or warm cloth.

Useful For

Monitoring arterial pH


Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hour after the specimen arrives at the testing site.

STAT orders: Typically completed within 15 minutes after the specimen arrives at the testing site.

CPT Code Information

82800 Chemisty; Gases, blood, pH only

LOINC Code Information

2745-8 pH Of Capillary Blood

Test Method

Direct Potentiometry; iSTAT, iSTAT Corporation

Reference Values