Sign in →

Test Code VPHB Venous pH Panel, Whole blood

Important Note

Specimen must be received in the laboratory within 30 minutes of collection.

Specimen

Whole Blood

Draw blood in a green-top (sodium or lithium heparin) tube. Label the specimen with the patient’s name (first and last), date of birth, date and time of draw and the phlebotomist’s initials. Specimen must be received in the laboratory within 30 minutes of collection.

Placing the specimen on ice is acceptable but not necessary if delivered in a timely fashion. Specimen must be free of excess air and the tube must be full.

 

Specimen stability:

30 minutes

Minimum volume:

3.0 mL

 

 

Reference Values

pH:      7.32 - 7.42 pH units  

Critical values (automatic call-back):  <7.20 or >7.60 pH units

 

pCO2:  42 - 55 mmHg

Critical values (automatic call-back):  <20 and >70 mmHg

 

pO2 20 - 40 mmHg

 

 

 

Day(s) Test Performed

Monday through Sunday

Performing Laboratory

MaineGeneral Medical Center

CPT Code

82803