American Medical Certification Association (AMCA) Phlebotomy Practice Exam

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

Prepare for the AMCA Phlebotomy Test. Use flashcards and multiple choice questions, each with hints and explanations. Ace the exam and become a certified phlebotomy technician!

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 condition is caused by leaving a tourniquet on for too long?

Bruising
Hemoconcentration
Thrombosis
Hematoma

The correct answer is: Hemoconcentration

Leaving a tourniquet on for too long can lead to hemoconcentration, which occurs when the blood in the veins becomes more concentrated due to the removal of plasma. This concentration can happen because the tourniquet restricts blood flow, causing the cells and proteins in the blood to become more densely packed as the liquid portion (plasma) is forced away from the area. This condition can significantly affect the results of laboratory tests, leading to potential misinterpretations of a patient's lab results. While bruising, thrombosis, and hematoma can occur due to improper tourniquet application or other issues, they are not directly related to the duration for which the tourniquet is applied. Bruising is typically linked to damage to blood vessels during needle insertion, thrombosis refers to clot formation within a blood vessel, and hematoma is a localized collection of blood outside of blood vessels that can occur after a blood draw. Thus, hemoconcentration specifically arises from prolonged pressure caused by the tourniquet, making it the correct answer.