Phlebotomy Tube Colors and Venipuncture Techniques Quiz

Lavender tubes contain EDTA, which helps preserve blood cells for CBC analysis.

EDTA (ethylenediaminetetraacetic acid) is commonly used as an anticoagulant in green-top tubes.

Phlebotomy refers to the process of drawing blood from a patient for medical testing or donation.

Blood culture collections are typically done in sterile tubes, which are either clear or yellow.

The median cubital vein, located in the antecubital fossa, is often preferred due to its accessibility and stability.

Red tubes usually contain no additives and are used for various serological tests including blood glucose testing.

Gold or tiger-top tubes contain a gel separator and clot activator, suitable for various chemistry tests including liver function tests.

The butterfly method, using a winged infusion set, is often preferred for difficult veins or fragile patients.

Light blue tubes contain sodium citrate, used as an anticoagulant for coagulation studies like PT (prothrombin time) and PTT (partial thromboplastin time).

The gel separator forms a barrier between serum/plasma and cells during centrifugation, allowing easy separation for analysis.

A tourniquet temporarily restricts venous blood flow, aiding in vein visualization and engorgement, making venipuncture easier.

The dorsal metacarpal vein, located on the back of the hand, is commonly used for venipuncture in children.

The basilic vein, located on the inner side of the arm, is often used for venipuncture in the elderly due to its visibility and accessibility.

Anchoring the vein helps stabilize it, reducing the risk of vein collapse and minimizing the likelihood of hematoma formation post-venipuncture.