Hand Hygiene and Infection Control Practices

Play an AI-generated podcast conversation about this lesson

What should be used to hold pressure over the site following blood collection procedures?

Clean 2-by-2-inch gauze pads folded in fourths

Why should adhesive bandages not be used on babies younger than 2 years of age?

Due to the danger of aspiration and suffocation

How should sharp objects be disposed of after use in blood collection procedures?

Immediately in special containers referred to as 'sharps' containers

What type of ink should a phlebotomist use to label tubes and record patient information?

Indelible (permanent) non-smear ink Signup and view all the answers

What should be used to accurately determine specimen collection times and time certain tests?

A watch, preferably with a sweep second hand or timer Signup and view all the answers

If bleeding time exceeds 8 or 9 minutes, what is the usual interpretation?

Abnormal Signup and view all the answers

What is the purpose of anticoagulants in blood collection tubes?

To prevent blood from clotting (coagulating) Signup and view all the answers

What is the function of EDTA in blood collection tubes?

EDTA prevents coagulation by binding or chelating calcium. Signup and view all the answers

What is the purpose of a thixotropic gel separator in blood collection tubes?

To separate plasma from packed RBCs in whole blood. Signup and view all the answers

How does acid citrate dextrose contribute to blood preservation?

It acts as an anticoagulant present in blood bags, allowing blood to be preserved for 21-35 days. Signup and view all the answers

What is the significance of royal blue-top tubes in blood collection?

Royal blue-top tubes are used for hematology tests requiring whole-blood specimens. Signup and view all the answers

Why is it important to properly mix blood specimens in collection tubes?

Proper mixing ensures uniform distribution of additives and prevents microclots. Signup and view all the answers

What is the purpose of using a pre-cleaned glass microscope slide in venipuncture?

To make blood films for hematology determinations Signup and view all the answers

Why is the Evacuated Tube System (ETS) the most preferred method for venipuncture?

The blood is not exposed to air, preventing inaccuracy in certain blood tests like ionized calcium levels. Signup and view all the answers

What type of biohazard bag is suitable for transporting blood samples?

Red biohazard bag Signup and view all the answers

When should a CSF sample be stored at room temperature?

For neurosyphilis Signup and view all the answers

Why is the Syringe System used in venipuncture?

For small, fragile, and damaged veins Signup and view all the answers

What happens if ionized calcium is exposed to oxygen or carbon dioxide during blood collection?

Calcium levels decrease, leading to inaccurate results Signup and view all the answers