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Test Identifier Information

 
Registration CodeP50
Method

Blood gas analyser: calculated from standard conditions - pH 7.40, pCO2 40 mmHg, temp 37°C.

The p50 is a measure of the oxyhaemoglobin binding characteristics identifying the position of the oxygen haemoglobin dissociation curve at half saturation (SO2 = 50%).

External Price$21.14(Exclusive of GST)
  

Specimen Collection

 
Patient SpecimenVenous whole blood, in blood gas syringe
Paediatric Specimen500 uL venous whole blood, in blood gas syringe
Sample Delivery to LabStable room temperature 2-3 hour or tranport 4-8C
  

Instructions for Referral to CHLabs

 
Aliquot Instructions1.0 mL whole blood, blood gas syringe Fridge
Aliquot Transport to CHLFridge temperature
  

CHLabs Laboratory

 
DepartmentBiochemistry - Core
Contact Details Email Email
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Contact Phone Number(03) 364 0397 | x80397
Test AvailabilityAs requested
Turnaround Time1-2 hour
Reference Interval

Reference range 22-27 mmHg

A low p50 indicates increased oxygen Hb affinity.

A high p50 reflects a decreased oxygen Hb affinity.

Changes in p50 are in indirect measure of the 2,3, dPG concentration.

Delphic Number Test Number4713

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