p50
1.5 mL venous blood in heparinised syringe.
0.5 mLvenous blood collected into a 1 mL heparinsed blood gas syringe, capped with a filter cap. Remove air immediately after collection by expelling through the filter cap. Mix for 20 seconds. Transport at ambient temperature.
Biochemistry
Mon - Sun, 24hrs
30 minutes
ABL90
kPA
Venous blood
0 - 6 months: 2.5 - 3.2 kPa
6 months and older: 3.4 - 4.1 kPa
Arterial blood (not recommended)
Male: 3.2 - 3.8 kPa
Female: 3.2 - 3.7 kPa
Capillary - not a valid sample type
The reference interval is the same for p50(st) and p50(temp corrected)
p50 is mainly used to check for haemoglobin variants with high or low oxygen affinity.
See attachment for details
Available on the blood gas analyser in biochemistry.
p50 is a rare request, suggest to inform biochemistry prior to sending a sample for testing.
Contact POCT to arrange testing at the rural laboratories
0.3 mL whole blood collected in to a 1 mL blood gas syringe
P50
