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PHLEBOTOMY NATIONAL EXAM (NHA) 100% verified
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PHLEBOTOMY NATIONAL EXAM (NHA) 100% verified
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PHLEBOTOMY NATIONAL EXAM (NHA)Characteristics imperative to a phlebotomist - ANSDependability, honesty, integrity, empathy
and compassion, professional appearance, interpersonal skills
Circulatory system function - ANSdeliver oxygen, nutrients, hormones, & enzymes to cells and
transport cellular waste (CO2) to organs where they can be expelled
The two circulations - ANSPulmonary & Systemic
Pulmonary circulation - ANScarries 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? - ANSalveoli
Systemic circulation - ANScarries oxygenated blood from left ventricle throughout the body
Upper chambers of the heart - ANSright and left atria
lower chambers of the heart - ANSright and left ventricle
tricuspid valve - ANSatrioventricular 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 - ANSsemi-lunar valve situated between the right ventricle and the pulmonary
artery
Mitral valve (or bicuspid) - ANSatrioventricular valve located between the left atrium and left
ventricle
aortic valve - ANSsemi lunar valve situated between the left ventricle and aorta
Flow of blood through the heart - ANSSuperior 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 - ANSEndocardium, myocardium, epicardium
Blood vessels - ANSarteries, arterioles, capillaries, venules, veins, superior & inferior vena
cavae
, aorta, arteries, and arterioles carry_____ blood _______ the heart - ANSoxygenated & away
from
venules, veins, and superior and inferior vena cave carry _____ blood ________ the heart -
ANSdeoxygenated & back to
The average adult has ______ liters of blood - ANS5-6
Plasma comprises how much of circulating blood? - ANS55%
Plasma contains.... - ANSproteins, amino acids, gases, electrolytes, sugars, hormones,
minerals, vitamins, and water
What percent of plasma is water? - ANS92%
Formed elements comprise what percent of circulating blood? - ANS45%
another name for red blood cells... - ANSErythrocytes
What makes up the formed elements? - ANSRed blood cells, White blood cells, and platelets
Another name for white blood cells... - ANSleukocytes
another name for platelets... - ANSthrombocytes
What comprises 99% of the formed elements? - ANSred blood cells (erythrocytes)
Where do blood cells originate? - ANSstem cells in bone marrow
How many RBCs are in a microliter of blood? - ANS4.2 to 6.2 million
Normal life span of an RBS is... - ANS120 days
Function of a leukocyte - ANSprovide the body protection against infection
Amount of WBCs per microliter of blood - ANS5,000-10,000
leukocytosis - ANSincrease in WBCs
leukocytosis is seen when? - ANScases of infection and leukemia
leukopenia - ANSdecrease in WBCs
leukopenia is seen when? - ANSviral infections or chemotherapy
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