Test Identifier Information
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||$21.57(Exclusive of GST)|
|Patient Specimen||Venous whole blood, in blood gas syringe|
|Paediatric Specimen||500 uL venous whole blood, in blood gas syringe|
|Sample Delivery to Lab||Stable room temperature 2-3 hour or tranport 4-8°C|
Instructions for Referral to CHLabs
|Aliquot Instructions||1.0 mL whole blood, blood gas syringe Fridge|
|Aliquot Transport to CHL||Fridge temperature|
|Department||Biochemistry - Core|
|Contact Phone Number||(03) 364 0397 | x80397|
|Test Availability||As requested|
|Turnaround Time||1-2 hour|
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 Number||4713|