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33 Cards in this Set
- Front
- Back
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T/F
ischemic disorders typically affect arteries only |
TRUE
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which artery supplies the left lateral wall of the left ventricle?
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left circumflex artery of the left coronary artery
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where do the coronary arteries originate?
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aorta- just above aortic valve
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which artery supplies the left ventricle?
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ant descending artery of left coronary artery
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which artery supplies the ant portion of the rt ventricle
a) anterior circumflex b) interventricular A c) marginal A d) None |
marginal artery of the rt coronary artery
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the posterior descending artery of the coronary artery supplies the
a) post HT b) R ventricle c) left ventricle d) all e) none |
posterior portion of ht
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which artery supplies the ant portion of the HT?
a) Ant descending b) Left Coronary A c) Ant interventricular d) Rt Coronary A e) a, b f) b, c |
Ant interventricular of the left coronary artery
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T/F
blood flow to the HT muscle is greatest during systole |
F
DIASTOLE- valve is closed therefore it must enter the coronary system instead of being circulated thru the body |
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if you increase the aortic pressure what happens to the blood flow to the HT muscle?
a) increase blood flow b) decrease blood flow c) stays the same |
decrease blood flow- hi prssr more difficult to move
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which of the following is false about blood flow to the HT muscle?
a) depends of vascular tone b) regulated by metabolic need c) affected by HR d) can be compensated by collateral circulation e) all are false f) all are true |
All true
also- depends on aortic prssr, is maximal during diastole |
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inadequate blood supply and inefficient metabolite removal defines
a) Myocardial infarction b) Congestive Ht Failure c) Ischemic Ht Disease d) None |
ischemic Ht disease- affects arteries
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the possible causes of Ischemic Ht disease
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atherosclerosis
vasospasm thrombosis aortic stenosis |
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which of the following is false about angina
a) it is a constricting pain b) can radiate to the Left arm, shoulder, jaw, back c) intensity decreases with time d) all are true e) all are false |
intensity of pain INCREASES with time- telling body there is more potential damage
(pseudo aneurism - pain decreases) |
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T/F
classic angina is associated with atherosclerosis |
True
classic angina - aka - exertional angina |
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with classic angina pain is related to
a) increased metabolic need b) vasospasm c) atherosclerosis d) a, b e) a, c f) b,c |
atherosclerosis
increased metabolic need (vasopsasm = variant angina, unstable angina also caused by atherosclerotic plaque) |
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which of the following is not associated with atherosclerosis
a) classic angina b) variant angina c) unstable angina d) all are associated |
variant angina= due to vasospasm during rest or minimal exercise. it occurs at night and is cyclic
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list the criteria for unstable angina
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new onset < 2 months
symptoms occur at rest and last <20 min exertional angina increases in severity |
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what is the most common cause of AMI?
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rupture/fissure of atherosclerotic plaque- causes ischemia within minutes
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transmural MI affects _____ layers
subendocardial MI affects _____ |
transmural- all layers of Ht are damaged- most life threatening
subendocardial- only layer below endocardium is damaged |
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ischemic damage is irreversible within
a) immediately b) 10-20 min c) 20-40 min d) 1 hour |
20-40 min
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T/F
ischemic damage travels from outside to inside |
F
inside to out |
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what are the three zones of ischemic damage
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necrotic (inner most)
injured suffering (outer most) |
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T/F
AMI can be relieved by Nitroglycerine supplement and rest |
F
Narcotics are required |
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list manifestations of AMI
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nausea, vomit,
fatigue, weakness, anxiety, restless, pale, cool moist skin, tachycardia, hypotension, shock |
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following AMI- EKG diagnosis will detect _____
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arrhythmia
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Which of the following is/are not used as a diagnostic tool for MI
a) serologic marker b) xray c) Doppler d) EKG |
xray
doppler |
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following a MI, what happens to myoglobin levels
a) peak within 4-8 hours b) normalize within 2-3 days c) peak within 3-6 days d) a, b e) none |
(elevate within an hour) peak 4-8 hours
(elevated CK/MB normalize within 2-3 days) (LDH peaks within 3-6 days) |
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How long does it take Myoglobin levels to elevate following MI
a) 30 min b) 1 hour c) 3 hour d) 4 hour |
1 hours
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what is the treatment plan following MI
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rapid re-canalization of occluded coronary artery
relieve pain manage life threatening complications rehab to maximize physiologic/psychologic wellbeing |
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what is the treatment for MI
a) recanalize coronary artery b) relieve pain c) physiologic/psychologic rehab d) all of the above e) none |
ALL
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T/F
cardiac troponin levels increase following MI |
TRUE- not helpful info in emergency situation
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which serologic marker elevates within 4-8 hours and normalizes 2-3 days later after MI
a) myoglobin b) CK/MB c) LDH d) Troponin e) None |
CK/MB
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which serologic marker elevates within 24-48 hours and peaks 3-6 days later after MI
a) myoglobin b) CK/MB c) LDH d) Troponin e) None |
LDH
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