Questions + Verified Answers 100%
correct, Update 2026
What tube would you pick for a lipid profile? -
correct answer ✅Serum red top
What tube would you pick for a complete blood count (CBC) -
correct answer ✅Lavender
What tube would you pick for a PT, PTT, and INR? -
correct answer ✅Light blue
What tube would you pick for a FBS (glucose)? -
correct answer ✅Gray
What tubes would you pick for electrolytes? -
correct answer ✅Serum red top or green.
What is always drawn first and why? -
correct answer ✅Special tubes for blood cultures to avoid
contamination.
, Phlebotomy Medical Assistant Exam
Questions + Verified Answers 100%
correct, Update 2026
What additive is found in the light blue tube top? -
correct answer ✅Sodium citrate
What additives are found in the gray tube top? -
correct answer ✅Potassium oxalate and sodium fluoride.
What additive is found in the green tube top? -
correct answer ✅Heparin
What additive is found in the lavender tube top? -
correct answer ✅Edta
Which capillary punture involves measuring packed red blood cells?
-
correct answer ✅Hematocrit
Triglycerides should be below? -
correct answer ✅150mg/dl