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pH, Venous

Mnemonic:    [pH Venous]
Name:    pH, Venous
Specimen:     1 mL drawn in a heparinized blood gas syringe.

An unopened, filled lithium heparin vacutainer tube without gel is acceptable. This test cannot be added to a previously tested sample.

Write the patient's temperature on the requisition. The temperature is needed to correct the pH.

Send to lab immediately.
Reference Range:    7.32 - 7.42
  Method:    Ion Selective Electrode
Processing Info:    Do not centrifuge.