Phlebotomy Order of Draw

Front

What is the order of draw in phlebotomy?

Back

The order of draw refers to the specific sequence in which blood collection tubes should be filled to prevent contamination of samples and ensure accurate test results.

Front

Why is it important to follow the order of draw?

Back

Following the order of draw prevents cross-contamination of additives from one tube to another, which can lead to inaccurate test results.

Front

What is the additive in a lavender top tube used for?

Back

The additive in a lavender top tube is EDTA, which is used to prevent blood from clotting.

Front

Which color Vacutainer tube is used for coagulation studies?

Back

The light blue Vacutainer tube is used for coagulation studies.

Front

What can happen if a red top tube is collected before a yellow top tube?

Back

Collecting a red top tube before a yellow top tube can lead to cross-contamination of additives, affecting test results.

Front

What is the purpose of using different colored Vacutainer tubes?

Back

Different colored Vacutainer tubes are used to collect and preserve various types of blood samples for different laboratory tests.

Front

What is the additive in a green top tube?

Back

The additive in a green top tube is heparin, which is used as an anticoagulant to prevent clotting.

Front

What type of tests are typically performed using a red top tube?

Back

Red top tubes are typically used for serum tests, such as chemistry panels and serology tests.

Front

What is the significance of the light blue top tube in phlebotomy?

Back

The light blue top tube is significant for coagulation tests, as it contains sodium citrate, which helps preserve the blood's clotting factors.

Front

What is the role of additives in blood collection tubes?

Back

Additives in blood collection tubes serve various purposes, such as preventing clotting, preserving cellular components, or enhancing specific tests.