PHLEBOTOMY NATIONAL EXAM
(NHA) QUESTIONS & ANSWERS
Characteristics imperative to a phlebotomist - ANSWERS-Dependability, honesty, integrity,
empathy and compassion, professional appearance, interpersonal skills
Circulatory system function - ANSWERS-deliver oxygen, nutrients, hormones, & enzymes to cells
and transport cellular waste (CO2) to organs where they can be expelled
The two circulations - ANSWERS-Pulmonary & Systemic
Pulmonary circulation - ANSWERS-carries deoxygenated blood from the right ventricle to the
lungs and returns oxygenated blood from lungs to left atrium
Where does oxygenation take place in the lungs? - ANSWERS-alveoli
Systemic circulation - ANSWERS-carries oxygenated blood from left ventricle throughout the
body
Upper chambers of the heart - ANSWERS-right and left atria
lower chambers of the heart - ANSWERS-right and left ventricle
tricuspid valve - ANSWERS-atrioventricular valve, situated between right atrium and right
ventricle
**to remember this valve is on the right side of the heart-- people TRY to be RIGHT
,pulmonic valve - ANSWERS-semi-lunar valve situated between the right ventricle and the
pulmonary artery
Mitral valve (or bicuspid) - ANSWERS-atrioventricular valve located between the left atrium and
left ventricle
aortic valve - ANSWERS-semi lunar valve situated between the left ventricle and aorta
Flow of blood through the heart - ANSWERS-Superior and Inferior Vena Cavae< Right atrium<
tricuspid valve< right ventricle< pulmonic valve< pulmonary artery< lungs< pulmonary vein< left
atrium< mitral (bicuspid) valve< left ventricle< aorta< rest of body
Three layers of the heart - ANSWERS-Endocardium, myocardium, epicardium
Blood vessels - ANSWERS-arteries, arterioles, capillaries, venules, veins, superior & inferior vena
cavae
aorta, arteries, and arterioles carry_____ blood _______ the heart - ANSWERS-oxygenated &
away from
venules, veins, and superior and inferior vena cave carry _____ blood ________ the heart -
ANSWERS-deoxygenated & back to
The average adult has ______ liters of blood - ANSWERS-5-6
Plasma comprises how much of circulating blood? - ANSWERS-55%
, Plasma contains.... - ANSWERS-proteins, amino acids, gases, electrolytes, sugars, hormones,
minerals, vitamins, and water
What percent of plasma is water? - ANSWERS-92%
Formed elements comprise what percent of circulating blood? - ANSWERS-45%
another name for red blood cells... - ANSWERS-Erythrocytes
What makes up the formed elements? - ANSWERS-Red blood cells, White blood cells, and
platelets
Another name for white blood cells... - ANSWERS-leukocytes
another name for platelets... - ANSWERS-thrombocytes
What comprises 99% of the formed elements? - ANSWERS-red blood cells (erythrocytes)
Where do blood cells originate? - ANSWERS-stem cells in bone marrow
How many RBCs are in a microliter of blood? - ANSWERS-4.2 to 6.2 million
Normal life span of an RBS is... - ANSWERS-120 days
Function of a leukocyte - ANSWERS-provide the body protection against infection
Amount of WBCs per microliter of blood - ANSWERS-5,000-10,000
(NHA) QUESTIONS & ANSWERS
Characteristics imperative to a phlebotomist - ANSWERS-Dependability, honesty, integrity,
empathy and compassion, professional appearance, interpersonal skills
Circulatory system function - ANSWERS-deliver oxygen, nutrients, hormones, & enzymes to cells
and transport cellular waste (CO2) to organs where they can be expelled
The two circulations - ANSWERS-Pulmonary & Systemic
Pulmonary circulation - ANSWERS-carries deoxygenated blood from the right ventricle to the
lungs and returns oxygenated blood from lungs to left atrium
Where does oxygenation take place in the lungs? - ANSWERS-alveoli
Systemic circulation - ANSWERS-carries oxygenated blood from left ventricle throughout the
body
Upper chambers of the heart - ANSWERS-right and left atria
lower chambers of the heart - ANSWERS-right and left ventricle
tricuspid valve - ANSWERS-atrioventricular valve, situated between right atrium and right
ventricle
**to remember this valve is on the right side of the heart-- people TRY to be RIGHT
,pulmonic valve - ANSWERS-semi-lunar valve situated between the right ventricle and the
pulmonary artery
Mitral valve (or bicuspid) - ANSWERS-atrioventricular valve located between the left atrium and
left ventricle
aortic valve - ANSWERS-semi lunar valve situated between the left ventricle and aorta
Flow of blood through the heart - ANSWERS-Superior and Inferior Vena Cavae< Right atrium<
tricuspid valve< right ventricle< pulmonic valve< pulmonary artery< lungs< pulmonary vein< left
atrium< mitral (bicuspid) valve< left ventricle< aorta< rest of body
Three layers of the heart - ANSWERS-Endocardium, myocardium, epicardium
Blood vessels - ANSWERS-arteries, arterioles, capillaries, venules, veins, superior & inferior vena
cavae
aorta, arteries, and arterioles carry_____ blood _______ the heart - ANSWERS-oxygenated &
away from
venules, veins, and superior and inferior vena cave carry _____ blood ________ the heart -
ANSWERS-deoxygenated & back to
The average adult has ______ liters of blood - ANSWERS-5-6
Plasma comprises how much of circulating blood? - ANSWERS-55%
, Plasma contains.... - ANSWERS-proteins, amino acids, gases, electrolytes, sugars, hormones,
minerals, vitamins, and water
What percent of plasma is water? - ANSWERS-92%
Formed elements comprise what percent of circulating blood? - ANSWERS-45%
another name for red blood cells... - ANSWERS-Erythrocytes
What makes up the formed elements? - ANSWERS-Red blood cells, White blood cells, and
platelets
Another name for white blood cells... - ANSWERS-leukocytes
another name for platelets... - ANSWERS-thrombocytes
What comprises 99% of the formed elements? - ANSWERS-red blood cells (erythrocytes)
Where do blood cells originate? - ANSWERS-stem cells in bone marrow
How many RBCs are in a microliter of blood? - ANSWERS-4.2 to 6.2 million
Normal life span of an RBS is... - ANSWERS-120 days
Function of a leukocyte - ANSWERS-provide the body protection against infection
Amount of WBCs per microliter of blood - ANSWERS-5,000-10,000
