Acute Coronary syndromes Flashcards

(39 cards)

1
Q

What is coronary artery disease?

A

an umbrella term that includes angina and acute coronary syndrome

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2
Q

Ischemia

A

insufficient oxygen is supplied to meet requirements

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3
Q

Infarction

A

necrosis when ischemia is prolonged causing decreased perfusion and irreversible damage

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4
Q

what is the difference between stable and unstable angina?

A

stable is predictable and occurs with exertion
unstable is new onset, poorly relieved by NTG

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5
Q

What is angina pectoris?

A

chest pain caused by temporary imbalance of oxygen supply and the demand for oxygen

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6
Q

What is Chronic stable angina?

A

chest discomfort that occurs with moderate to prolonged exertion due to FIXED atherosclerotic plaque

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7
Q

Typical 3 features of chronic stable angina

A

substernal chest pain or heaviness
precipitated by stress
relieved by rest or NTG

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8
Q

What is a diagnostic indicator for stable angina?

A

cardiac biomarkers like troponin are not elevated

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9
Q

what is the usual dosage for plavix?

A

75 mg/day

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10
Q

What is acute coronary syndrome?

A

used to describe patients with unstable angina or acute MI

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11
Q

Vasospastic angina

A

chest pain from coronary artery spasm and occurs at rest

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12
Q

Myocardial infarction

A

myocardial tissue is deprived of oxygen

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13
Q

what are the 2 types of MIs?

A

Non ST segment elevation (NSTEMI)
ST elevation (STEMI)

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14
Q

How does an NSTEMI present on an EKG?

A

ST segment depression and T inversion

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15
Q

How does a STEMI present on a EKG?

A

ST segment elevation

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16
Q

What are the cardiac biomarkers?

A

Troponin T
Troponin I
CK-MB
Myoglobin

17
Q

Characteristics of Unstable angina

A

pressure lasting longer than 15 min
poorly relieved by NTG
severe activity limitation
increase in number of attacks

18
Q

What does the T-wave inversion represent for NSTEMI?

A

some ischemia

19
Q

What does the ST elevation represent for STEMI?

A

zone of injury

20
Q

What happens over a 2-3 month period after an infarction?

A

ventricular remodeling

21
Q

What is the problem with ventricular remodeling?

A

scar tissue decreases left ventricular function
causes HF
does not contract or conduct electrically

22
Q

What is the immediate tx for a patient presenting with MI symptoms?

A

Morphine
Oxygen (NC)
Nitroglycerin
Aspirin 324-650mg

23
Q

Dosage for sublingual NTG

A

0.4 mg 5 min up to 3 doses for stable angina
multiple doses titrated for NSTEMI

24
Q

Nursing management for ACS

A

Managing acute pain
increase perfusion
identify and manage dysrhythmias
monitor and manage heart failure

25
what are some diagnostic procedures to rule out cardiac etiology?
stress test imaging angiogram
26
What is a coronoary angiogram?
catheter is snaked through femoral artery and contrast is injected to visualize blockages
27
What is an angioplasty?
a balloon is used to stretch the vessels of the wall and put in a stent
28
what are some things to take into consideration for an angiogram?
allergies bleedings pulses creatinine
29
What is a CABG?
coronary artery bypass graph disease in multiple areas harvest veins from body and create bypass graphs
30
what are examples of percutaneous therapies?
angiogram and angioplasty
31
what are some complications of CABG?
bleeding cardiac tamponade change in LOC hypo or hypertension
32
What do you assess after a CABG?
distal pulses
33
what medication can interact with nitroglycerin?
Viagra
34
Why would we do a transesophageal echo? (TEE)
to get a clearer view to look for clots or vegetation
35
what is the pre procedure for cath lab?
vital signs auscultate lungs assess pulses allergy hx make sure signed consent is done analyze labs withhold anticoagulants or diuretics
36
potential complications for cath lab
tamponade hematoma retroperitoneal bleeding
37
post cath nursing interventions
assess VS every 15 min keep leg straight for 2-6 hrs assess site
38
what is cardiogenic shock?
heart can't pump enough to meet demands
39
s/s of cardiogenic shock
tachycardia hypotension cold clammy skin tachypnea