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Test Code APH pH, Arterial (Includes pCO2 Arterial), Blood

Methodology

Ion-Selective Electrode (ISE)

Performing Laboratory

Munson Healthcare Laboratories

Specimen Requirements

Specimen must arrive within 10 minutes of draw.

 

Container/Tube: Blood gas capillary tube or heparinized syringe-Specimen exposed to air is not acceptable.

Specimen Volume: 0.1 mL of whole blood from blood gas capillary tube or 0.5 mL of whole blood from heparinized syringe
Transport Temperature: Ambient

Collection Instructions: Forward immediately. Specimen must be analyzed within 30 minutes of draw.

Note: Do not centrifuge.

Reference Values

pH: 7.34-7.44 pH units
Critical values (automatic call-back):

2 months -  ≥90 years: </= 7.20 pH units or >/= 7.60 pH units

<2 months: <7.20 pH units or >7.50 pH units 


pCO2: 32-44 mm/Hg
Critical values (automatic call-back): </= 20 mm/Hg or >/= 70 mm/Hg

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82803