Phlebotomy Procedures Quiz

The cephalic vein is frequently used for venipuncture due to its accessibility and size.

A tourniquet is applied to restrict venous outflow, leading to vein dilation, which facilitates venipuncture.

Inverting blood tubes helps ensure proper mixing of blood with anticoagulant, preventing clot formation and maintaining sample integrity.

Venipuncture is the medical procedure of puncturing a vein with a needle to collect blood for diagnostic purposes.

Platelets are primarily responsible for clot formation, playing a crucial role in hemostasis and wound healing.

Used needles should be disposed of safely by placing them in puncture-resistant containers to prevent needlestick injuries and transmission of infectious agents.

A 22 gauge needle is typically used for routine venipuncture in adults because it balances patient comfort with blood flow rate.

Chlorhexidine gluconate is often used for skin preparation as it provides broad-spectrum antimicrobial activity and residual effects.

Capillary puncture is performed to collect blood from superficial vessels, typically from the fingertip or heel, for diagnostic testing.

Hyperglycemia is not a common complication of phlebotomy; complications may include hematoma, nerve injury, or infection.

If a patient faints during venipuncture, immediate assistance should be sought, and the patient should be laid flat to promote blood flow to the brain.

The recommended order of draw helps prevent cross-contamination between tubes and ensures accurate test results by collecting blood in specific additive order.

A 90-degree angle of insertion is recommended for venipuncture to ensure proper entry into the vein.

Blood culture collection is primarily done to diagnose bacterial infections by isolating and identifying pathogens present in the bloodstream.

Various factors such as patient position, tourniquet application, and tube mixing can influence the quality of a blood sample.

If a patient refuses blood draw, their decision should be respected, and the refusal should be documented and communicated to the healthcare provider for further assessment.

If a hematoma develops during venipuncture, applying pressure to the site helps control bleeding and minimize bruising.