What should I tell the phlebotomist before my blood draw?

Question

Accepted Answer

Before your draw begins, share the following information with your phlebotomist:

Any history of fainting (vasovagal syncope) during blood draws

Blood clotting disorders or bleeding disorders

Blood thinners or anticoagulants (warfarin, Eliquis, aspirin, clopidogrel)

History of difficult veins or multiple failed prior draws

Lymphedema or mastectomy (draw should avoid the affected arm)

AV fistula or dialysis access sites (never draw from these)

Allergies to latex, tape, or antiseptic (chlorhexidine, iodine)

All prescription and over-the-counter medications, vitamins, and supplements — some affect test results.

If you know one arm is easier than the other, say so. The phlebotomist will still assess both.

Confirm whether you have fasted and for how long, especially if fasting tests are included.

Have your lab requisition ready and confirm the name of the laboratory the specimens should be sent to.

Related Questions