Potassium (Blood Gas)
2.63
1.0 mL blood in an adult blood gas syringe or 0.5 mL in a paediatric blood gas syringe
Remove at least 3 ml of blood to waste prior to collecting the blood sample from a line
0.5 mL blood in a paediatric blood gas syringe
POCT
Mon - Sun, 24hrs
30 minutes
Blood gas analyser
mmol/L
3.5 - 5.2 mmol/L
± 0.1
Haemolysis and delay in delivery of the specimen will cause elevated levels. Micro samples may have elevated potassium due to haemolysis. Where hypokalaemia is suspected, avoid stasis with tourniquet and avoid having the patient pump their hand.
0.3 ml collected into a paediatric blood gas syringe
POTBG
$POTBG
6298-4