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pH, Venous
MessagePerforming Lab: Hudson, Lakeview, Regions, Westfields
Test Code
3630
Alias/See Also
Sunquest: PHV
CPT Codes
82800
Preferred Specimen
1.0 mL Heparinized Venous Blood (Blood Gas Syringe) or Full unopened light green top on ice
Minimum Volume
0.5 mL
Other Acceptable Specimens
Heparinized Capillary
Instructions
Samples should be free of air bubbles, received on ice slush and run immediately. (Exceptions to the ice slush are samples received , as long as they are received within 30 minutes of collection.)
Hudson: Specimens should be walked directly to the laboratory
Hudson: Specimens should be walked directly to the laboratory
Transport Container
Blood Gas Syringe
Transport Temperature
Ice Slush
Specimen Stability
Ice Slush: 1 hour
Room Temperature: 30 minutes
Room Temperature: 30 minutes
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Room Temperature >30 minutes
Methodology
Electrode
FDA Status
Approved
Setup Schedule
Daily
Report Available
Same Day
Reference Range
7.310 - 7.410
Clinical Significance
pH is clinically significant as a means of determining acid-base disturbances. Acid-base disorders can result in several pathologic conditions. An acid-base disorder resulting initially from ventilatory dysfunction is called a primary respiratory acidosis or alkalosis, while a disorder due to renal or gastrointestinal inadequacy is referred to as metabolic acidosis or alkalosis.
