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PHLEBOTOMY NATIONAL EXAM (NHA) – 187 Q’s And A’s
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PHLEBOTOMY NATIONAL EXAM (NHA) –187 Q’s And A’s
Characteristics imperative to a phlebotomist - -Dependability, honesty,
integrity, empathy and compassion, professional appearance, interpersonal
skills
-Circulatory system function - -deliver oxygen, nutrients, hormones, &
enzymes to cells and transport cellular waste (CO2) to organs where they
can be expelled
-The two circulations - -Pulmonary & Systemic
-Pulmonary circulation - -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? - -alveoli
-Systemic circulation - -carries oxygenated blood from left ventricle
throughout the body
-Upper chambers of the heart - -right and left atria
-lower chambers of the heart - -right and left ventricle
-tricuspid valve - -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 - -semi-lunar valve situated between the right ventricle and
the pulmonary artery
-Mitral valve (or bicuspid) - -atrioventricular valve located between the left
atrium and left ventricle
-aortic valve - -semi lunar valve situated between the left ventricle and
aorta
-Flow of blood through the heart - -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 - -Endocardium, myocardium, epicardium
-Blood vessels - -arteries, arterioles, capillaries, venules, veins, superior &
inferior vena cavae
-aorta, arteries, and arterioles carry_____ blood _______ the heart - -
oxygenated & away from
-venules, veins, and superior and inferior vena cave carry _____ blood
________ the heart - -deoxygenated & back to
-The average adult has ______ liters of blood - -5-6
-Plasma comprises how much of circulating blood? - -55%
-Plasma contains.... - -proteins, amino acids, gases, electrolytes, sugars,
hormones, minerals, vitamins, and water
-What percent of plasma is water? - -92%
-Formed elements comprise what percent of circulating blood? - -45%
-another name for red blood cells... - -Erythrocytes
-What makes up the formed elements? - -Red blood cells, White blood cells,
and platelets
-Another name for white blood cells... - -leukocytes
-another name for platelets... - -thrombocytes
-What comprises 99% of the formed elements? - -red blood cells
(erythrocytes)
-Where do blood cells originate? - -stem cells in bone marrow
-How many RBCs are in a microliter of blood? - -4.2 to 6.2 million
-Normal life span of an RBS is... - -120 days
-Function of a leukocyte - -provide the body protection against infection
-Amount of WBCs per microliter of blood - -5,000-10,000
-leukocytosis - -increase in WBCs
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