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Perfusion and Clotting Questions and Answers Rated A+
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Perfusion and Clotting
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Perfusion and Clottingcentral perfusion is generated - answer cardiac output- the amount of blood pumped by
the heart each minute
tissue perfusion - answer refers to the volume of blood that flows through target tissues
perfusion of blood begins when the heart is simulated by an electrical impulse that
originates in the _________ node and travels to the ______ node – answer sinoatrial
(SA), atrioventricular (AV)
the phase of the cardiac cycles when ventricles contract is called - answer systole
the phase of cardiac cycle when the ventricles fill with blood is called – answer diastole
from the AV node the impulse moves through a series of branches (bundle of His) and
Purkinje fibers in the .... – answer myocardium, which cause the ventricles to contract
the movement of blood in from the atria in the ventricles is accomplished when the
pressure of blood in the atria becomes ______ than the pressure of blood in the
ventricles - answer higher
populations at greatest risk of impaired perfusion are - answer middle aged and older
adults, especially African Americans
children and young adults are commonly experience impaired perfusion as a result of -
answer trauma
older adults are at risk for impaired perfusion because of - answer anatomic changes
expected with advanced age such as fibrosis and sclerosis of the sinoatrial node and
mitral and aortic valves
from the pulmonary veins what is the order blood is pumped through left side of heart? -
answer left atrium, av valve, ventricle, aortic SL valve.
from the aorta, what is the order in which the blood is pumped? - answer arteries of
each organ , arterioles of each organ, capillaries of each organ
From the capillaries, what is the order tp where the blood is pumped - answer venules
of each organ, veins of each organ, vena cava.
from the vena cava, in what order is the blood pumped to the right side of heart -
answer right atrium, right av valve, ventricle, pulmonary SL valve
, the pulmonary SL valve pumps blood into the ________ then delivers to the _______ -
answer pulmonary artery, Lungs
in what order is the blood pumped through the lungs - answer arteries, arterioles,
capillaries, venules, veins.
blood pumped from the lungs to the left atrium through the - answer pulmonary viens
ischemia - answera reversible cellular injury that occurs when the demand for oxygen
exceeds the supply because of a reduction of cessation of blood flow.
decreased oxygen to the mitochondria reduces - answeradenosine triphophate (ATP)
production
one problems of reduced ATP: when oxygen is not available to cells usual oxidative
metabolism they are forced to use _______, creating ATP from _______ to maintain cell
function which then creates ___________ - answeranareobic metabolism, glycogen,
lactic acid
what enzymes are measured after a myocardial infraction to determine the degree of
damage to the heart muscle? - answercreatine kinase (CK)
Another problem of reduced ATP is the inability to maintain the _________ _________ -
answeradenosinetriphosphatase (ATPase) Pumps
The ATPase pumps uses energy from ATP to pump _______ out of the cell and
_______ into the cell - answersodium, potassium
When ATP in unavailable a potassium deficit develops in the cell causing _______ in
______ _______ - answerdysrhythmias, myocardial tissue
When sodium remains in cell the results cause - answerswelling within the cell, dilation
of the endoplasmic reticulum, decreased mitochondrial function, and increased
membrane permeability
symptoms of impaired tissue perfusion include - answerpain, dyspnea, edema,
dizziness or fainting
when assessing patients with inadequate central perfusion a nurse may notice change
in vital signs such as - answerhypotension, or tachycardia
serum lipids are measured to detefct - answerhyperlipidemia, HDL, LDLs, VLDLs, and
triglycerides.
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