Venipuncture Equipment Quiz

What is the purpose of a tourniquet in venipuncture?

• To clean the patient's skin before puncturing

• To increase venous filling and make the veins more prominent

• To transfer blood safely from the syringe into a blood collection tube

• To hold the needle in place while it penetrates the rubber stopper of the vacuum tube

What is the function of a needle holder in venipuncture?

• To clean the patient's skin before puncturing

• To transfer blood safely from the syringe into a blood collection tube

• To hold the needle in place while it penetrates the rubber stopper of the vacuum tube

• To increase venous filling and make the veins more prominent

What is the purpose of a butterfly needle in venipuncture?

• To increase venous filling and make the veins more prominent

• To hold the needle in place while it penetrates the rubber stopper of the vacuum tube

• To transfer blood safely from the syringe into a blood collection tube

• To draw a small volume of blood from fragile veins

What is the role of anticoagulants in the coagulation cascade?

• To transfer blood safely from the syringe into a blood collection tube

• To clean the patient's skin before puncturing

• To increase venous filling and make the veins more prominent

• To prevent coagulation

What is the purpose of an evacuated tube system in venipuncture?

• To collect blood directly into the vacuumized collection tubes

• To draw a small volume of blood from fragile veins

• To hold the needle in place while it penetrates the rubber stopper of the vacuum tube

• To transfer blood safely from the syringe into a blood collection tube

What is the function of a blood transfer device in venipuncture?

• To increase venous filling and make the veins more prominent

• To transfer blood safely from the syringe into a blood collection tube

• To clean the patient's skin before puncturing

• To hold the needle in place while it penetrates the rubber stopper of the vacuum tube

What is the purpose of a syringe in venipuncture?

• To increase venous filling and make the veins more prominent

• To draw a small volume of blood from fragile veins

• To clean the patient's skin before puncturing

• To collect blood directly into the vacuumized collection tubes

What is the purpose of a cotton covering in venipuncture?

• To apply pressure until the bleeding has stopped

• To transfer blood safely from the syringe into a blood collection tube

• To hold the needle in place while it penetrates the rubber stopper of the vacuum tube

• To increase venous filling and make the veins more prominent

What is the purpose of lavender stopper tubes in phlebotomy?

• To preserve glucose stability for 3 days

• To separate mononuclear cells from whole blood

• To provide a clot activator for serum chemistry tests

• To prevent coagulation by binding calcium

What is the anticoagulant used in light blue stopper tubes?

• Thrombin

• Heparin

• EDTA

• Sodium citrate