Phlebotomy Order of Draw

Front

What is the importance of following the correct order of draw in phlebotomy?

Back

It is important for accurate test results and to prevent cross-contamination of additives between tubes.

Front

What are the potential consequences of not following the correct order of draw?

Back

Potential consequences include cross-contamination of blood samples, inaccurate test results, and patient misdiagnosis.

Front

What is the correct order of draw for the following tubes: yellow, light blue, red, green?

Back

light blue, red, green, yellow

Front

Why is it important to use the correct order of draw when collecting blood for multiple tests?

Back

To prevent cross-contamination and ensure accurate test results.

Front

Which Vacutainer tube color is used for complete blood count (CBC) tests?

Back

lavender/purple

Front

What is the role of the light blue tube in the order of draw?

Back

The light blue tube is used for coagulation tests and contains sodium citrate as an additive.

Front

What additive is found in the green Vacutainer tube?

Back

The green tube contains heparin, which is an anticoagulant.

Front

What tests are typically performed using the red Vacutainer tube?

Back

The red tube is often used for serum tests, including chemistry panels and serology.

Front

What is the purpose of the yellow Vacutainer tube?

Back

The yellow tube is used for blood cultures and contains sodium polyanethol sulfonate (SPS) as an additive.

Front

How does cross-contamination occur during blood collection?

Back

Cross-contamination can occur when additives from one tube mix with the blood sample in another tube due to incorrect order of draw.