Free Certified Phlebotomy Technician (CPT): Specimen Collection Questions and Answers

Question 1

What is the circulatory system's primary purpose?

Accepted Answer

Carries oxygen and food to the cells of the body

Answer

The circulatory system, primarily composed of the heart, blood vessels, and blood, is responsible for transporting essential substances throughout the body. Its main purpose is to deliver oxygen and nutrients to all body cells and remove waste products like carbon dioxide. This continuous circulation is vital for cellular metabolism and overall bodily function.

Question 2

Which two of the following are the circulatory system's primary purposes?

Accepted Answer

Cardiovascular system and lymphatic system

Answer

The circulatory system is broadly divided into two main components: the cardiovascular system and the lymphatic system. The cardiovascular system circulates blood, oxygen, and nutrients, while the lymphatic system collects excess fluid, filters waste, and plays a crucial role in immune function. These two systems work in conjunction to maintain fluid balance and transport substances throughout the body.

Question 3

How much blood does a human body typically contain?

Accepted Answer

5 Liters

Answer

The average adult human body typically contains approximately 4.5 to 5.5 liters of blood. This volume constitutes about 7-8% of total body weight and is essential for maintaining blood pressure, transporting substances like oxygen and nutrients, and regulating body temperature.

Question 4

There are various techniques for drawing blood from a patient. What kind of blood collection procedure is most typical?

Accepted Answer

Venous

Answer

Venous blood collection, or venipuncture, is the most common and typical method for drawing blood samples for diagnostic testing. It involves drawing blood from a vein, usually in the arm, because veins are easily accessible, have lower pressure than arteries, and provide sufficient blood volume for most laboratory tests.

Question 5

The integrity of the specimen is crucial. Which of the following can compromise the integrity of the specimen?

Accepted Answer

Method of transport

Answer

The method of transport can significantly compromise specimen integrity, leading to inaccurate test results. Factors such as extreme temperatures, excessive agitation, or delays in transport can cause hemolysis, cellular degradation, or alteration of analytes within the specimen. Adhering to proper transport protocols is essential to maintain the specimen's quality and ensure reliable diagnostic outcomes.

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Practice Test

Free Certified Phlebotomy Technician (CPT): Specimen Collection Questions and Answers