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when multiple sites in the atria take on very fast rhythms
blood flow
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represented by cardiac output
normal sinus rhythm
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60-100 bpm
the heart's ability to increase its output depends on what 4 factors?
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1) preload
2) afterload
3) cardiac contractibility
4) heart rate
unstable angina
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angina without exertion, or when the level needed decreases
heart rate
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number of beats per minute
PACs
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contractions that originate in the atria and occur before the next expected
SA node impulse
apoproteins and lipoproteins
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proteins that help stabilize insoluble cholesterol and triglycerides
erythrocytes
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red blood cells that carry oxygen to the body tissues via hemoglobin and
carbon dioxide away from the tissues and out the body
3 stages of hemostasis
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1) vascular constriction
2) platelet plug formation
3) blood coagulation
, hypercoagulability
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an increased tendency toward blood clotting
myocarditis
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inflammatory cardiomyopathy, most likely caused by a viral infection
epinephrine and norepinephrine
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hormones released from the adrenal gland with sympathetic activation that
work to increase BP
heart failure
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a complex syndrome resulting from fucntional or structural impairement of
ventricular filling or ejection of blood into the circulation