Prepare for the CalRegional Phlebotomy Exam with practice tests, flashcards, and multiple choice questions. Each question is equipped with helpful hints and explanations. Get ready to ace your certification!

Multiple Choice

Which tube type is commonly used for lipid panels?

Lipid panels require serum rather than whole blood, so the sample should come from a tube that yields clean, well-separated serum after processing. The Serum Separator Tube contains a gel that forms a barrier between the clot-derived serum and the cells, giving a stable, clear serum specimen ideal for lipid measurements. This setup minimizes cellular contamination and interference that can affect cholesterol and triglyceride readings. Other tube types serve different purposes—lavender-top with EDTA preserves cells, grey-top with fluoride/oxalate is for glucose testing, and blue-top with citrate is used for coagulation studies—so they aren’t optimal for lipid testing.

Lipid panels require serum rather than whole blood, so the sample should come from a tube that yields clean, well-separated serum after processing. The Serum Separator Tube contains a gel that forms a barrier between the clot-derived serum and the cells, giving a stable, clear serum specimen ideal for lipid measurements. This setup minimizes cellular contamination and interference that can affect cholesterol and triglyceride readings. Other tube types serve different purposes—lavender-top with EDTA preserves cells, grey-top with fluoride/oxalate is for glucose testing, and blue-top with citrate is used for coagulation studies—so they aren’t optimal for lipid testing.