Blood Specimen Collection and Safety Procedures Quiz

Larger gauge needles may cause hemolysis, while smaller ones may lead to clotting issues; 21 gauge provides an optimal balance for blood collection.

Wearing gloves reduces the risk of contamination and protects both the phlebotomist and the patient.

A 45-degree angle ensures proper needle insertion, minimizing pain and the chance of vein damage.

Sodium citrate prevents blood clotting, making it suitable for coagulation studies in blood collection tubes.

Palpation helps locate veins, assess their size, and ensures a successful venipuncture with minimal discomfort.

Hyperglycemia is a medical condition unrelated to blood specimen collection; potential complications include hematoma, infection, and nerve injury.

The patient's weight influences needle size selection, ensuring proper blood flow and reducing complications.

The tourniquet helps engorge veins, making them more visible and facilitating blood collection.

The heel is a preferred site for capillary puncture in infants due to its accessibility and lower pain sensitivity.

Hemoconcentration results in increased blood viscosity, often caused by prolonged tourniquet application or excessive squeezing during collection.

Following the correct order of draw helps prevent cross-contamination of additives, ensuring accurate test results.

Increased blood flow is not a symptom of hematoma; signs include swelling, pain, and discoloration at the puncture site.

To prevent allergic reactions, latex tourniquets should be avoided in patients with known latex allergies during venipuncture.

Capillary puncture poses minimal risk of arterial puncture; common risks include bruising and infection.