Free NAPTP Phlebotomy Preparations Question and Answers

Question 1

EDTA

Accepted Answer

Calcium binding agent used as an anticoagulant

Answer

EDTA (ethylenediaminetetraacetic acid) is a calcium binding agent that is commonly used as an anticoagulant. It works by chelating or binding to calcium ions, which are necessary for the coagulation process. By removing calcium ions, EDTA prevents the blood from clotting, making it an effective anticoagulant. This property makes it useful in various medical and laboratory settings, such as blood collection tubes or in certain medical procedures where anticoagulation is required.

Question 2

PTT is the abbreviation for:

Accepted Answer

Partial Thromboplastin Time

Answer

PTT stands for Partial Thromboplastin Time, which is a laboratory test used to measure the time it takes for blood to clot. It is commonly used to monitor the effectiveness of blood-thinning medication, such as heparin. The test measures the time it takes for a clot to form after certain substances are added to a blood sample. By measuring PTT, healthcare professionals can assess a patient's risk of excessive bleeding or blood clotting disorders.

Question 3

Lavender Tubes contain

Accepted Answer

EDTA

Answer

Lavender Tubes contain EDTA, which stands for ethylenediaminetetraacetic acid. EDTA is an anticoagulant that prevents blood from clotting by binding to calcium ions, which are necessary for the coagulation process. This type of tube is commonly used for hematology tests, such as complete blood count (CBC), as it preserves the blood cells and prevents clotting during transportation and analysis.

Question 4

Vacutainer System

Accepted Answer

Combination of Vacutainer holder, needle and sample tubes which allows for a more automated method of drawing blood

Answer

The Vacutainer System consists of a Vacutainer holder (also known as a Vacutainer adapter), a needle, and sample tubes. This system allows for a more automated method of drawing blood by using vacuum pressure to fill sample tubes with blood during venipuncture.

Question 5

Whole Blood:

Accepted Answer

Blood from which none of the elements have been removed

Answer

The correct answer is "Blood from which none of the elements have been removed." This means that whole blood refers to blood that has not had any of its components, such as red blood cells, white blood cells, platelets, or plasma, removed. It is a complete sample of blood that contains all of its natural components.

NAPTP - National Association of Phlebotomy Technician Professionals Practice Test

NAPTP - National Association of Phlebotomy Technician Professionals Practice Test

Free NAPTP Phlebotomy Preparations Question and Answers