PANCE_cardiology 13% Flashcards
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first-line treatment of hypOtension in setting of aortic dissection with aortic rupture or tamponade:
fluid resucitation
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what is aortic dissection?
damage of intima –> entry of blood b/w intima and media, creating a false lumen
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what does hypOtension indicate for aortic dissection?
poor prognostic indicator
likely indicates aortic rupture or cardiac tamponade
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“A 45-year-old woman presents to clinic to discuss her recent diagnoses of diabetes mellitus and hypertriglyceridemia. [What is] true regarding her glucose and triglyceride control?”
optimizing glycemic control may improve hypertriglyceridemia
(vs. “her greatest risk is renal failure secondary to diabetes”, though DM IS one of the leading causes of renal failure, it’s not an immediate risk for this pt)
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a pt aged 40-75 with an LDL >= 190 should probably get WHAT for primary prevention of CVD (according to 2019 AHA/ACC guidelines)?
high-intensity statin
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a pt aged 40-75 with diabetes should probably get WHAT for primary prevention of CVD (according to 2019 AHA/ACC guidelines)?
moderate-intensity statin
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Who should get ASCVD risk screening?
all adults ages 40-75
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If there is a high suspicion of upper extremity DVT, what is the next step in evaluation?
duplex ultrasound
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A pt w/ L ventricular EF <=35% and heart failure NYHA Functional Class II or III indicates what intervention for prevention of ventricular dysrhythmia and sudden cardiac death?
implantable cardioverter-defibrillator
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What education should be given to pt with acute exacerbation of systolic CHF upon discharge to help prevent readmission?
MONITOR DAILY WEIGHTS
“instructing patients to monitor daily weights can ehlp prevent heart failure readmission”
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most cases of mitral valve prolapse are _____
benign
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Mitral Valve Prolapse (MVP) can lead to what serious problems?
ACUTE MITRAL REGURGITATION (MR)
sudden cardiac death
infectious endocarditis
stroke
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patients with symptomatic MVP (Mitral Valve Prolapse) such as autonomic dysfunction are trialed on __________
BETA BLOCKERS
(also counseled on caffeine, ETOH and tobacco abstinence and given 24-hr cardiac monitor)
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PE findings of MVP
midsystolic click
late systolic murmur
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pts with symptoms of MVP may present with:
palpitations
dyspnea
nonexertional CP
fatigue
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how to diagnose mitral valve prolapse (MVP)
clinical exam
CONFIRMED BY ECHO
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name a guideline used for risk stratification to predict occurrence of adverse outcomes in the evaluation of UA (Unstable Angina) and NSTEMI:
TIMI
(Thrombolysis in Myocardial Infarction) risk tool
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initial ECG changes observed in ischemic heart disease presentation
T wave prolongation and magnitude
(up to 50% of ECGs are normal or nonspecific)
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what is the MC tachydysrhythmia associated with sinus node dysfunction (formally known as sick sinus syndrome)?
atrial fibrillation
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50% of cases of sinus node dysfunction demonstrate
alternating bradycardia and an atrial tachydysrhythmia
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diffuse ST segment elevation (except for aVR and V1 which will show reciprocal ST depression and PR elevation)
pericarditis
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pain that DECREASES in intensity when pt leans forward is a distinct characteristic of what?
pericarditis
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why does pericarditis pain decrease with leaning forward?
“sitting up and leaning forward reduces the pressure on the parietal pericardium and allows for diaphragm splinting”
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first line treatment for acute pericarditis
NSAIDs
(but not if it’s a case of pericarditis after MI or uremic pericarditis)
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two MC causes of pericarditis, in order:
first - idiopathic
second - viral (coxsackie)
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how do VSDs present?
HOLOSYSTOLIC MURMUR, best heard at
L LOWER STERNAL BORDER
frequently accompanied by a thrill or a displaced PMI
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in terms of VSD, what is Eisenmenger syndrome?
it is the progression of the defect to RIGHT-TO-LEFT shunting
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in a pt presenting with pulmonary edema and hypertension and tachycardia, what underlying condition puts the pt at risk of developing nitrate-induced hypOtension?
aortic stenosis
(in preload-dependent states, in which cardiac output depends on adequate preload to the heart, admin of nitrates can result in critical hypOtension
preload-dependent states = aortic stenosis, volume depletion, R ventricular infarction, hypertrophic obstructive cardiomyopathy)
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acute decomp post acute anterior STEMI - what is most likely etiology of this acute decomp?
L ventricular free wall rupture
post MI ventricular free wall rupture is the most common mechanical complication post MI
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Beck triad
pericardial tamponade
1 - muffled heart sounds
2 - JVD
3 - hypOtension
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ECG showing low-voltage QRS, electrical alternans
think pericardial tamponade
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treatment for pericardial tamponade
pericardiocentesis
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three EKG signs of hyperkalemia
peaked T waves
prolonged PR
wide QRS
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If a pt has an isolated distal DVT, is asymptomatic, has a negative D-dimer, is not at high risk for proximal thrombus extension, what is the acceptable treatment plan?
observation with u/s every week for 2-4 weeks
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A patient with an intermediate risk of coronary artery disease is undergoing an exercise stress test. Which of the following is the most specific finding for myocardial ischemia?
A) 2 mm downsloping ST-segment depression
B) 2 mm upsloping ST-segment depression
C) Increase of systolic blood pressure
D) Sporadic premature ventricular complexes
2 mm DOWNSLOPING ST-SEGMENT DEPRESSION IS THE MOST SPECIFIC FINDING FOR MYOCARDIAL ISCHEMIA DURING AN EXERCISE STRESS TEST
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first, second, third-line treatments for symptomatic or hemodynamically unstable bradycardia (and define bradycardia)
bradycardia = HR <59
first - atropine: 1 mg IV bolus, repeated q3-5 min for total of 3 mg
second - dopamine: infusion 5-20 mcg/kg/minute
third - transcutaneous pacing
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first degree AV heart block ECG findings:
PR interval >200 ms
this type of block is often a normal variant, w/o clinical significance, occurring in ~2% healthy young adults
requires no specific treatment
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drugs that slow nodal conduction
digoxin
BB
CCB
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asymptomatic L ventricular systolic dysfunction w/ LVEF <40% should consider what pharmaceutical intervention?
ACE-I like lisinopril
ACE-Is are beneficial in the prevention and treatment of HF b/c they reduce afterload and preload, prevent angiotensin II from triggering harmful cardiac remodeling, and reduce sympathetic activation.
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boot-shaped heart
Teratology of Fallot
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rib notching
think coarctation of the aorta
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EKG findings of coarctation of the aorta
LVH
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diagnosis of coarctation of the aorta is made by _____
echo
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coarctation of the aorta is assocated with what congenital syndrome?
Turner syndrome
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radiographic finding for most likely diagnosis for a 14 y/o boy with soft systolic murmur and femoral pulses delayed compared to radial pulses
RIB NOTCHING
these develop in response to increased collateral blood flow needed to bypass the congenital narrowing of the aorta
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MC type of coarctation of aorta
localized aortic coarctation
which occurs at or near junction of aortic arch and descending thoracic aorta, distal to origin of L subclavian artery
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EKG findings for coarctation of aorta
LVH
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“A continuous systolic-diastolic murmur is auscultated in a 3-week-old dyspneic infant. She is tachypneic and diaphoretic. Her mother reports weight loss and poor feeding. Doppler color-flow imaging reveals high velocity jets in the pulmonary artery.” This patient will most likely undergo what corrective surgery?
LIGATION
this is PDA, ACYANOTIC congenital cardiac condition
ligation is referred method of closure
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what is PDA?
the fetal connection b/w the pulmonary artery and the aorta remains open
causes a continuous “machine-like” murmur heard in systole and diastole
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what does PDA sound like?
continuous
rough
machine-like murmur
best heard in 1st interspace of LSB
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management of PDA?
indomethacin
conservative observation
surgical ligation
percutaneous transcatheter occlusion
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“Which of the following is a cyanotic congenital heart disease?
a) ASD
b) coarctation of aorta
c) PDA
d) Tetralogy of Fallot”
D) TETRALOGY OF FALLOT
1 - R vent outflow tract obstruction
2 - R vent hypertrophy
3 - VSD
4 - overriding aorta
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“what is the survival benefit of ACE-Is in pts who have suffered rEF?”
PREVENTS VENTRICULAR REMODELING
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what is the benefit of an ACE-I for pts post-MI?
REDUCE MORTALITY in pts after a STEMI by PREVENTING VENTRICULAR REMODELING
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All pts who present with syncope get what study?
EKG
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what is the focus of management of aortic stenosis in acute setting?
restore preload, and get cardiology consult
(in other words, IVF and cardiology consult)
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“Which of the following antiarrhythmic medications is contraindicated in the setting of coronary artery or structural heart disease?
a) amiodarone
b) dofetilide
c) dronedarone
d) flecainide”
D) FLECAINIDE
contraindicated in the setting of coronary artery or structural heart disease b/c of increased risk of polymorphic ventricular tachycardia
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mnemonic for Class IC antiarrhythmics?
Can I have Fries, Please?
Class IC
Flecainide, Propafenone
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What is the MOA of Class IC Antiarrhythmics?
fast Na+ channel blockers
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if Class IC antiarrhythmics are fast Na+ channel blockers, what changes do they cause in the heart and on the EKG?
increase AV node refractory period
increase PR, QT, QRS
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what is the MC cause of aortic valve insufficiency IN INDUSTRIALIZED COUNTRES?
worldwide?
AORTIC ROOT DILATION
worldwide - rheumatic heart disease
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common hx findings of aortic insufficiency (regurgitation)
infectious endocarditis, dissection, Marfan syndrome
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After airway is secured, what is the most appropriate next step in management of PEA?
CHEST COMPRESSIONS
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Causes of PEA (8)
The H’s and T’s:
Hypovolemia
Hypoxia
Hypothermia
Hyperkalemia
Tension Pneumo
Thrombus (PE or MI)
Toxicology
Tamponade
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which of the following RF is most likely cause of a patient’s hypertriglyceridemia?
a) age
b) genetic disorder
c) HTN
d) increased consumption of ETOH
e) smoking
D) INCREASED CONSUMPTION OF ETOH
MC RF for hypertriglyceridemia:
obesity
metabolic syndrome
DM II
other RF for hypertriglyceridemia
ETOH
lack of exercise
meds
genetic disorders
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first line agent for treatment of aortic dissection
IV BB: labetalol or esmolol
FOLLOWED BY VASODILATORS (they’re not first)
i.e. nicardipine or nitroprusside
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five mainstays of management of aortic dissection
- reduce BP to lowest tolerable level (SBP 100-120’s)
- reduce HR <60bpm
- IV BB (esmolol, labetaolol, propanolol)
- nitroprusside (ONLY AFTER HR is controlled)
- pain control
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if a pt presents with s/s of infectious endocarditis from IV drug use, what are most appropriate abx?
VANCOYMYCIN AND CEFTRIAXONE
you need to cover MRSA, staph, strep, enterocci
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what organisms are most commonly found in right-sided endocarditis?
Staph aureus
Strep pneumoniae
gram negative bac
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what organisms are most commonly responsible for bac endocarditis in the presence of a GI malignancy?
Strep bovis
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what two items are necessary for diagnosis of bac endocarditis?
DUKE CRITERIA
and echocardiography
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“A 35-year-old woman with no past medical history and who is taking oral contraceptives, presents for evaluation of thigh pain and swelling of her entire leg. Her right calf is 3.5cm larger than her left and there is pitting edema. She was seen six days ago for the same complaint and had a negative ultrasound. {What} is the most appropriate plan?”
REPEAT DUPLEX ULTRASOUND
in pts w/ high pre-test probability, a repeat duplex u/s is indicated in pts with persistent symptoms
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major criteria for rheumatic fever
Jones Criteria - the majors
JONES - C
Joints (polyarthritis)
Oh no
Nodules
Erythema marginatum
Sydenham chorea
Carditis
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minor criteria for Rheumatic Fever
fever
arthralgia
previous rheumatic heart disease
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leading cause of valvular disease in the world
rheumatic fever (esp children 4-9 yrs)
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hx of infection from GAS….think
rheumatic fever
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initial approach to managing suspected white coat hypertension
ambulatory bp monitoring
(send them home w/ bp cuff)
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“what is first line medication for uncomplicated HTN according to ACC/AHA?”
thiazide diuretics
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pt gets a duplex u/s and finds a R small saphenous vein thrombophlebitis and has no other complaints or complications….what is the immediate correct management for this pt’s symptoms (four things)?
warm compress
extremity elevation
compression stockings
pain management
remain ambulatory
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management of complicated superficial thrombophlebitis
anticoagulation
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what are the concerning axial leg veins that increase a pts risk of superficial thrombus extending into deep veins?
great saphenous vein
accessory saphenous vein
small saphenous vein
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What do inotropic drugs do (big picture)?
alters the force of myocardial contraction
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list nine positive inotropic drugs
(these increase myocardial contractility)
dopamine
dobutamine
epinephrine
norepinephrine
digoxin
phosphodiesterase inhibitors (Milrinone)
glucagon
insulin
amiodarone
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list four negative inotropic drugs
(these decrease myocardial contractility)
BB
CCB
class IA antiarrhythmics (quinidine, procainamide)
Class IC antiarrhythmics (flecainide)