CAD/Angina (Module 4) Flashcards

1
Q

CAD Patho

A

impaired blood flow through coronary arteries most commonly by arethomas

atherosclerosis (usually occurs at points of turbulence aka vessel bifurcation)

plaque grows, blood vessel narrows, not enough oxygenation blood gets to the heart

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2
Q

Angina Pectoris

A

pain varies ranging from vague to crushing (sometimes may present as pressure, gas, or bloating)

substernal but may radiate to shoulder blade, arm or jaw

women and elderly may present atypically (malaise, SOB, anxiety and fatigue)

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3
Q

1 Modifiable Risk of CAD Is…

A

SMOKING

(and diabetes)

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4
Q

Nonmodifiable Risk Factors of CAD

A

age
genetics and ethnic background
male gender

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5
Q

CAD Labs

A

troponins (indicate heart tissue death)
homocysteine (>17)
highly sensitive C-reactive protein (hsCRP): inflammation marker but not specific to cardiac (>0.175 mg/L)

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6
Q

Unstable Angina

A

crescendo or rest angina (new onset)
acute coronary syndrome manifestation (may progress to MI)
typically due to unstable atherosclerosis plaque rupture

pain refractory to nitroglycerin

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7
Q

Stable Angina

A

exertional angina (5-15 min)
typically due to a stable but tight obstructive coronary artery stenosis

relived by rest or nitroglycerin

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8
Q

Prinzmetal Variant Angina

A

rest/nocturnal angina
due to coronary artery spasm

triggered by smoking and increased lvls of some substances like histamine

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9
Q

Decubitus Angina

A

angina when laying down
typically due to left ventricular dysfunction resulting in redistribution of pulmonary fluids and thus increased CO

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10
Q

Silent Ischemia

A

absence of angina in presence of documented ischemia
may occur with coronary artery or microvascular dysfunction

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11
Q

Syndrome X Angina

A

includes classical syndrome X, microvascular angina, coronary slow flow phenomenon
prolonged episodes of exertional or rest angina
typically due to coronary microvascular dysfunction

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12
Q

Microvascular Angina

A

MI secondary to microvascular disease affecting small distal branches of coronary arteries

more common in women; triggered by ADLs and treatment may include nitroglycerin

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13
Q

CAD Diagnostics and Procedures

A

ECG
Stress Testing
multislice helical computed tomography (CT) or positron-emission tomography (PET) (gold standard to determine myocardial perfusion or assess LV function)
cardiac catheterization with angiography
percutaneous coronary intervention (PCI)

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14
Q

Stress Testing

A

treadmill/bike: exercise to stress the heart and look for symptoms of decreased perfusion

pharmocologic: uses dobutamine (increases contractility) or dipyridamole (coronary artery dilator) to stress heart

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15
Q

Right Heart Cath

A

fem vein
IVC or R basilic vein
SVC
R atrium
R ventricle
pulm artery to assess lung pressures

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16
Q

Left Heart Cath

A

fem
brachial or radial artery (most common)
aorta
aortic valve
L ventricle (stroke volume, EF)

17
Q

Coronary Arteriography

A

entry same as L heart cath
aortic arch
L/R coronary artery

18
Q

Pre-Procedure Considerations

A

look for consent, check for metformin use or allergies to iodine/shellfish (contrast medium)

assess baseline nuerovascular assessment, heart and breath sounds and vitals

conscious sedation: may feel flushing/warmth when dye is injected

19
Q

Neurovascular Assessment P’s

A

Pain
Pulse
Paralysis
Pallor
Parasthesia
Pressure

20
Q

Post Procedure Considerations

A

sheath removal: bedrest, keep extremely straight

21
Q

Post Procedure Complications

A

contrast-induced renal dysfunction leads to more fluids to flush out contrast; monitor BUN/creatinine, O

hematoma/bleeding: assessment compare to baseline and catheter insertion site, pulses distal to insertion site, any pulse is ok as long as it’s felt; bruising is normal, but ones that get larger are a problem (circle bruise to monitor)

restenosis leads to dysrhythmias, CP leads to cardiac monitor

pt education re:discharge meds

22
Q

Percutaneous Coronary Intervention (PCI)

A

balloon angioplasty: balloon inflated to open artery

intracoronary stent placement: stent deployed to keep artery open

23
Q

Meds (Nitrates)

A

potent vasodilator; lowers preload and afterload (watch BP and orthostatic changes)

don’t administer to pts taking drugs used to treat sexual dysfunction

check expiration date because efficacy decreases over time and should be replaced every 3-5 months

24
Q

Transdermal Nitroglycerin

A

minitran, nitro dur, nitrek

apply patch to a clean, dry, hairless area because med will be better absorbed
rotate application sites to prevent irritation
remove patch before defibrillation to prevent burns
remove patch after 12-14 hrs each day to prevent drug tolerance

HA common; hypotension and dizziness ADE; lie or sit down to avoid fainting

25
Q

Sublingual Nitroglycerin

A

teach pt to carry NTG at all times
keep tablets in glass light resistant container
replace every 3-5 months

26
Q

Management of Chest Pain at Home

A

keep fresh nitroglycerin available for immediate use
place one nitroglycerin tablet or spray under your tongue, allowing it to dissolve
repeat nitroglycerin and wait 5 more minutes while waiting for EMS

27
Q

Beta Blockers

A

lowers HR (monitor!!); indirectly lowers BP, contractility and CO

don’t administer is HR is <50-60 BPM
hold for systolic <90-100 mmHg

observe for HF signs like cough, edema, SOB, weight gain
assess for wheezing and SOB because can cause bronchoconstriction

NEVER STOP ABRUPTLY; CAN CAUSE REBOUND HTN

28
Q

Calcium Channel Blockers

A

low HR! non-DHP
lowers contractility, lowers afterload BP
orthostatic hypotension

29
Q

Antiplatelets

A

aspirin (ecotrin, asaphen)
p2y12 inhibitors (clopidogrel (Plavix), prasugrel (Effient))

inform pts to report any unusual bleeding or bruising because bleeding is a SE

30
Q

Statins (Simvastatin (Zocor))

A

reduce cholesterol synthesis in the liver and increase clearance of LDL-C from blood

CI in pts with liver disease because can cause muscle myopathies and marked decreases in function

discontinued if pts have muscle cramping or elevated liver enzymes

AVOID GRAPEFRUIT

31
Q

Prevention of CAD Self-Management

A

statins
avoid all animal-based foods like milk, eggs, and cheeses to lower cholesterol