Test Code PH pH Arterial, LAB2655

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Container/Tube:

Preferred: Heparinized syringe

Acceptable: Green-top (lithium heparin) tube (must be full)

Specimen Volume:150 uL of heparinized whole blood

Stability: Samples should be placed in ice water if they can not be run within 30 min.

Collection Instructions: Specimen must be kept as anaerobic as possible.

7.35-7.45 units

Critical values

0-30 days: <7.2 units or >7.5 units

≥1 month: <7.2 units or >7.6 units

Monday through Sunday

The blood pH is useful in the assessment of the acid-base status of a patient.

Potentiometric Sensors: Includes pH

82800

15 minutes upon receipt