American Medical Certification Association (AMCA) Phlebotomy Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the AMCA Phlebotomy Exam. Prepare with flashcards and multiple choice questions; each question offers hints and explanations. Get ready for your exam today!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What tube would be used to collect blood for a pregnancy test?

Green Tube Top
Blue Tube Top
Red Tube Top
Lavender Tube Top

The correct answer is: Red Tube Top

The appropriate tube for collecting blood for a pregnancy test is the red tube top. This type of tube is classified as a serum separator tube, which is used for collecting blood samples that will be tested for various markers, including human chorionic gonadotropin (hCG), a hormone commonly associated with pregnancy. The red top typically does not contain any additives that would interfere with the testing process, allowing for accurate results when checking for pregnancy. In contexts such as laboratory procedures, it is essential to select the proper tube, as each color is associated with different additives that serve various purposes. For instance, the green tube contains heparin and is used for plasma tests, while the blue tube is associated with coagulation tests due to the presence of sodium citrate. The lavender tube contains EDTA, which is primarily used for hematology tests, not for serum analysis. Thus, using the red tube ensures that the sample can be properly analyzed for pregnancy due to its suitability for serum tests.