CARDS: BW Medicine + THS review Flashcards
Pt presents with hypotension, tachy, JVD, no pulsus paradoxus -Dx?
R ventricular infarct
tx = vigorous fluid resuscitation, do not give nitro
Next test to rule out cardiac pathology after EKG?
troponins q8 x3
Elevations in what leads for LAD STEMI?
V1-V4
Elevations in what leads for L Circ STEMI
I, aVL, V4-V6
Elevations in what leads for RCA STEMI
II, III, aVF
Elevations in what leads for R vent STEMI
v4 on right side
NSTEMI next test after elevated trops?
coronary angiography w/in 48 hours
when do CABG after PCI?
L main disease 3 vessel disease 2 vessel disease in a diabetic >70% occlusion pain despite max medical tx or post-infection angina
Medical Tx for MI
morphine oxygen Nitrates ASA/Clopidogrel Beta blocker
Discharge Meds STEMI?
ASA (+ plavix 9-12 months if stent)
b blocker
ACE if CHF or LV dysfunction
statin
No ST Elevation and normal cardiac enzymes x3, next step?
dx unstable angina
exercise EKG aka stress test
When can’t you do a stress test? what do instead?
old LBBB, baseline ST elevation or on Digoxin
do echo instead
When use a chemical stress test?
pt cannot ambulate but needs a stress test
What is a positive stress test?
chest pain reproduced
ST depression
hypotension
–> cath lab
What are the major risk factors for CAD?
Diabetes Smoking HTN Hypercholesterolemia Fhx Age >45 M >55 F HDL<40 chronic renal failure
What is the #1 preventable risk factor for CAD
smoking
Who often do not have classic MI sx?
elderly and DM
EKG changes for unstable angina?
ST depression or T-wave inversions
Tx for angina
sublingual nitro
3 doses q3-5 min intervals
Chronic prevention of angina tx
isordil (long acting nitrate)
beta blocker (decrease myocardial O2 consumption)
ASA to prevent platelet aggregation in atherosclerotic plaque
quit smoking
improve lipid levels
NSTEMI vs. unstable angina
- NSTEMI pain often lasts >20 min without resolving and may only partially respond or not respond to nitroglycerin
- EKG similar to unstable angina (ST depression or T-wave inversions)
- DO see elevated cardiac enzymes
Tx of NSTEMI
ASA O2 Beta blocker Sublingual nitro PRN LMWH GPIIB-IIA antagonist if enzymes positive of ST dperssions >1mm
etiology of STEMI
infarct usually 2/2 acute plaque rupture causing thrombosis in an atherosclerotic vessel
How soon do you have to give tPA and heparin for thrombolysis of an MI?
6 hrs of infarct
second line for thrombolysis of MI
streptokinase
what drugs are proven to decrease mortality s/p MI?
asa and b-blockers
what are the EKG changes in Prinzmetals?
ST elevation
how differentiate prinzmetals from STEMI?
transient ST elevation, troponins typically negative
tx for prinzmetals
vasodilators (nitroglycerin or calcium blocker) and catheterization because vasospasm often occurs at the site of an atherosclerotic lesion in the coronaries
MCC of death s/p MI?
arrythmia
new systolic murmur 5-7 d s/p MI?
regurg from papillary muscle rupture
acute severe hypotension s/p MI
free wall rupture
step up in O2 conc from RA to RV s/p MI?
free wall rupture
persistent ST elevation 1 month later + systolic MR murmur?
ventricular wall aneurysm
“cannon a waves” s/p MI?
blood bound up to next
AV dissociation, V-Fib or 3rd degree heart block
5-10 weeks s/p MI pleurtic CP, low grade temp?
Dressler’s
young healthy pt with diffuse ST elevation
pericarditis
Chest pain worse with inspiration, better with leaning forward, friction rub dx?
pericarditis
tx for pericarditis
NSAIDs
chest pain worse with palpation
costochondritis
new murmur and history of virus
myocarditis
pain occurs at rest, worse at night, woman with migraines
prinzmetal’s
what can cause hemopericardium?
trauma, metastatic CA, viral or bacterial infections
what is pulsus paradoxus?
> 10mmHg fall in BP during normal inspiration
EKG findings on pericarditis
electrical alternans, beat to beat alternating height of QRS
Causes of pericarditis?
infection: bacterial, viral, fungal
generalized serositis 2/2 RA, SLE, scleroderma, uremia
treatment for pericarditis
viral: NSAIDs
bacterial/fungal: antimicrobials
thickened pericardium: pericardectomy
Progressive prolongationg of the PR interval followed by a dropped beat
Mobitz type 1 or wenkebach
Cannon a waves, regular p-p interval and regular r-r interval but not associated
3rd degree heart block
varying pr interval with 3 or more morphologically distinct p waves in the same lead
MFAT
multifocal atrial tachycardia
wide QRS, fast
V tach
3 or more consecutive beats with QRS 120 bpm
how treat V tach if stable vs unstable
unstable: shock
stable: lidocaine or amiodarone
short PR interval followed by a QRS >120 ms with a slurred initial deflection representing early ventricular activation via the bundle of kent
WPW
tx WPW
procainamide
what do you NOT give for WPW
anything that slows AV conduction
b-blockers, digoxing, ca channel blockers (dilt, verapamil)
regular rhythm with a ventricular rate 125-150 and an atrial rate of 250-300
atrial flutter
tx for a flutter unstable vs, stable
unstable: shock
stable: beta blockers and digoxin
prolonged QT interval leading to undulating rotation of QRS complex around the EKG baseline in a pt with low Mg and low K, lithium or TCA OD
torsades
regular rhythm with a rate between 150-220 sudden onset dizziness/palpitations
supraventricular tachycardia
first line tx for SVT
carotid massage (kids shove face in ice water) (adenosine if want med)
EKG in pt with renal failure, crush injury, burn victim with peaked T waves, widened QRS, short QT and prolonged PR
hyperkalemia
undulating baseline, low voltage, alternate beat variation in direction on EKG
cardiac tamponade
this is electrical alternans
undulating baseline, no p-waves, irregular R-R in pt who is hyperthyroid, dizziness or CHF with valve dz
A Fib
nml PR interval
<0.2 ms which is 5 small boxes
what is a Q wave
initial downward deflection
Tx A Fib
beta blockers
digoxin
ca-channel blockers (verapamil and diltiazem)
cardioversion