Venous pH

Method Name

Ion Selective Electrode (ISE)


Venous PH; Cord PH, Venous/Cord PH

Specimen Required

one green top tube (contains heparin). Deliver on ice to Respiratory Care.

Specimen Minimum Volume

2.0 mL (tube should be filled)

Specimen Stability Information

Do not expose blood to room air during collection or transport. Stability – 24 hours @ room temperature

Performing Laboratory

As ordered. Turn around time is 4 hours.

Reference Values

Venous pH: 7.32 – 7.42 nCord pH: 7.25 – 7.35