Arterial sample

5.1.1 Conditions:

They vary as for those described for venous samples.

5.1.2 Technique:

The sample is taken from the humeral, radial or femoral artery depending on the circumstances:

– Wash hands or disinfect them using an alcohol-based solution.

– Locate the pulse of the humeral, radial or femoral artery.

– Clean the skin with 70% rubbing alcohol.

– Prick the needle directly in the artery. If a syringe is used, gently aspirate and then transfer to the tube.  If it is an arterial blood gas sampling device, the arterial blood rises through capillary action.

– Compress the artery at the puncture site long enough for hemostasis to occur.

– Discard the needle in a hard sharps container.

– Label the samples.

NB: For blood gases, the sample is preferably taken from the humeral or radial artery. Avoid the femoral artery, since this artery is anatomically positioned next to the vein and there is therefore a risk of obtaining venous blood.