Specimen Requirements

Draw 2 mL of blood in a 3-mL heparinized syringe or a minimum of 0.5 mL of blood in a 1-mL heparinized syringe. Expel any air bubbles. Use gauze or tissue to absorb the excess blood.  Cap the syringe immediately and mix by rolling the syringe between the palms for 15 seconds. Transport to the laboratory immediately. Specimen must be recieved in the laboratory within 30 minutes of draw. 

Note:  1. Include percent oxygen, liter oxygen inspiration, or room air on request form.

2. Label syringe with patient’s name (first and last) and date and actual time of draw.

Also acceptable

Draw a full small dark green top (Sodium Heparin) tube or a full large dark green tube (Lithium Heparin)     (Gel tube is not acceptable).  Mix be gently inverting 8 times.  Transport to the laboratory immediately.  Must be received in less than 30 minutes from collection time.