what are plaques that rupture called?
(Ans- complicated plaques
what happens when a plaque ruptures?
(Ans- platelet adhesion, clotting cascade, rapid thrombus formation --> occlusion of vessel --> ischemia or infarction of vessel
list the acute coronary syndromes
(Ans- unstable an...
NSG 533 Exam 3: Questions & Answers
what are plaques that rupture called?
(Ans- complicated plaques
what happens when a plaque ruptures?
(Ans- platelet adhesion, clotting cascade, rapid thrombus formation -->
occlusion of vessel --> ischemia or infarction of vessel
list the acute coronary syndromes
(Ans- unstable angina, NSTEMI, STEMI
what is an acute coronary syndrome?
(Ans- sudden coronary obstruction caused by thrombus formation over
arteriosclerotic plaque
manifestations of unstable angina
(Ans-
- emergency
- reversible myocardial ischemia w/ some myocardial damage
- arteriosclerotic plaque has become a complicated lesion
- ECG abnormalities
- treat w/ nitrates, anticoagulants, and antithrombotic
ECG abnormalities of Unstable Angina
(Ans-
ST Depression
T wave inversion
manifestations of stable angina
(Ans-
- chest pain relieved by rest and nitrates
- d/t buildup of lactic acid
- pallor, diaphoretic, dyspnea, substernal chest discomfort
,define myocardial infarction
(Ans- loss of coronary blood flow for an extended period of time that
results in myocyte necrosis
isolated systolic hypertension
(Ans- a condition most commonly seen in the older adult in which the
systolic pressure is greater than 140 mm Hg and the diastolic pressure is
within normal limits (less than 90 mm Hg)
primary/idiopathic hypertension
(Ans- most common of HTN diagnoses, no specific cause known
secondary HTN
(Ans- caused by underlying disease or medication that raises PVR or
cardiac output
what are some medications that may raise PVR or cardiac output?
(Ans- oral contraceptives, antihistamines, corticosteroids
risk factors for HTN
(Ans- obesity, diabetes, increased age, black males, family hx
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