CEN cardiology (ACS) Flashcards
Stable angina is
4 things to know
chest pain that occurs with physical exertion, short lived, relieved by NTG or rest, negative trop.
Unstable angina is
4 things to know
chest pain with little physical exertion, longer lasting, unrelieved, negative trop
NSTEMI three things to know
Plaque rupture, elevated trop, no ST segment elevation
STEMI three things to know
ST elevation, vessel(s) obstructed by thrombosis, elevated trop
Prinzmetal’s angina (variant angina) is
ischemia due to coronary vasospasm
Prinzmetal’s angina is caused by two things
stimulants and stress
3 things to know about Prinzmetal’s angina
cyclical pain at rest, ST elevation and pain resolve when vasospasm ends, beta-blockers may exacerbate d/t unopposed alpha stimulation
9 S/S of ACS
- chest tightness
- jaw pain
- left arm pain
- epigastric pain
- scapular discomfort
- N/V
- dysrhythmias
- diaphoresis
- dizziness
ACS presents as ______ in women sometimes
increased fatigue
diabetics are more likely to
have a silent MI
The best lab indicator of MI is
troponin
Trop elevation is noticed within
3-12 hours
trop elevation peaks at
10-24 hours
viagra and cocaine within 24 hrs
no nitro or beta blockers
inferior leads
II, III, aVF
Anterior leads
V1-V4 (V1 & V2 septal)
Lateral leads
I, aVL(high lateral), V5, V6
ischemia manifests as
ST depression and/or inverted or tall t-waves
Injury manifest as
ST elevation (STEMI) t wave may invert
Old injury shows as
deep and wide Q wave
STEMI/vessel occlusion
ST elevation in two contiguous leads
Inferior STEMI (II, III, aVF)
Most commonly RCA (supplies SA and AV nodes
5 S/S of Inferior STEMI (II, III, aVF)
- epigastric pain
- bradycardia resulting in hypotension
- 2nd degree heart block type 1
- risk of mitral valve regurgitation
- risk of papillary muscle rupture (new heart murmur)
Anterior (V1-V4)
Most common LAD (widow maker)
9 S/S Anterior (V1-V4)
- Crushing chest pain
- ventricular dysrhythmias (VF)
- tachycardia
- feeling of impending doom
- Bundle Branch Block
- SOB
- Crackles in lungs and S3 (caused by L. vent failure)
- 2nd degree heart block type 2 (ominous sign)
- New onset heart murmur-VSD-emergency
Right Ventricle MI
Right Ventricle MI
30-50% of inferior MIs
Right ventricle MI ekg needs
Get a right sided EKG
Right Ventricle MI is usually
proximal RCA
4 S/S of Right ventricle MI
- JVD
- hypotension
- ST elevation at V4R (5th ICS, right MCL)
TX for Right ventricle (three things)
- use caution with preload reducing agents (NTG and Morphine)
- NS bolus
- Dobutamine infusion (to increase contractility)
Lateral MI is usually
LAD/circumflex
Lateral MI shows in
I and aVL (high lateral) V5 and V6
Lateral MI has…
reciprocal changes in II, III, and aVF
Posterior MI has elevation in
V7-V9 or depression in V1 and V2
8 treatments for STEMI
- Oxygen for SpO2 less than 94% or resp distress
- NTG (0.4 SL) q 5 up to 3x. Hold for low SBP, Low HR, viagra.
- ASA 162-324.
- PCI (goal 90 min or less) or fibrinolytic if PCI more that 90-120 min. (reperfusion dysrhythmias AIVR and VT good)
- beta-blockers early for HTN (not with coke)
- ACE/ARB reduce size, improve remodeling
- antiplatlets (plavix, asa, effient, brilenta)
- anticoagulants
Aortic dissection is
a tear in the intimal layer of aorta
Aortic dissection is caused by 5 things
- age above 60
- cocaine use
- Trauma (1st and 2nd rib fx)
- heart disease
- connective tissue disease (Marfans Ehlers-Danlos)