QG SB3 (F) Flashcards
W3 QG blocks (38,41,44,47) Deck is full
how does DiGeorge synd present?
CATCH-22 Cotruncal cardiac defects Abn facies Thymic hypoplasia Craniofacial abnormalities HypoCa/HypoPTH
what cotruncal cardiac defects are seen in DiGeorge synd?
- TOF
- TA
- interupted aortic arch
how does thymic hypo/aplasia present on labs?
T-cell def
what craiofacial abn is seen in DiGeorge synd?
cleft palate
what does PDA sound like?
washing machine / continuous murmur
Down’s synd is assoc w/ cardiac defect?
endocardial cushion defect
when does MVP present?
young females
what should you suspect if incr Ca + kidney stones?
hyperparathyroidism
where will CP of cardiac origin loacalize?
substernal/retrosternal
what is supraventricular AS
congenital defect = L vent outflow tract obstruction 2/2 diffuse narrowing of the asc. aorta
how does supraventricular AS present?
+palpable thrill (suprasternal)
+AS murmur @ 1st R intercostal space
+diff BP RUE vs LUE
if low BP is not responding to IVF (not vol problem), what is the cause of the low BP?
-pump failure
which side of the heart is the “main pump”?
right side
when does the heart receive O2?
diastole
SOC tx post-MI + stent placement = ?
- dual anticoag
- statin
- BB
- aldosterone antag
what is dual anticoag tx?
- ASA
2. P2Y12 inbib = clopidogrel, prasugrel, ticagrelor
what is the cause of anginal CP (regardless of if the pt has a murmur or not)?
- angina = ischemic pain!
- incr mycardial O2 demand
what is TRALI?
Transfusion Related Acute lung Injury
how does TRALI present?
=F, low BP, noncardiogenic pulm edema
when does TRALI present?
= onset w/in 6 hrs of receiving RBC transfusion
when/why do you hear crackles on lung ascultation?
LV can’t/doesn’t handle cardiac load –> fluid backs up into lungs –> pulm edema –> crackles
pt presents s/p sx w/ low BP, incr HR, crackles on p/e, and incr PCWP when tested. what do you expect?
MI (–> decr LV f(x) –> incr PCWP –> pulm edema –> crackles)
does post-sx MI always present w/ CP?
NO. may present w/o pain but in cardiogenic shock
how does cardiogenic shock present?
AMS, low BP, incr HR, cool extremities, pulm edema (crackles, JVD), decr urination
what does pulm cap wedge pressure estimate?
L atrial pressure
pt presents w/ low BP and hx suggestive of possible bleed. Large fluid bolus is given and no/min change is seen in blood pressure. what is not causing the low BP?
-hemorrhage (this is a pump failure not a vol issue)
in CHF, what is the best indicator of worsening prognosis?
development of S3
S3 on exam + incr BNP is cause for high suspicion of what?
heart failure
what non cardiac conditions (not CHF) exhibit peripheral edema?
- IVC obstruction
- cirrhosis
- nephrotic synd
- LE venous insufficiency
why is S3 > peripheral edema @ suggesting worsening HF?
it is WAY MORE SPECIFIC
what are two types of syncope?
- neurogenic
2. cardiogenic
which type of syncope presents w/ prodrome?
neurogenic
pt presents w/ diaphoresis. what is your ddx (general)?
- heart problem
2. aorta problem
how does pain 2/2 AAA rupture present?
- L sided abd, flank, back, CVA pain/tenderness
- pain will range from dull –> severe
- *b/c leaked blood is irritating the retroperitoneal structures
how does AAA present (stable vs sudden expansion vs rupture)?
s: mostly asymp
se: dull abd/back pain; +/- distal emboli
r: sudden, severe abd/back pain; +/- shock, hematoma
what is Myxadematous Valve degeneration?
MCC of MVP
what are the 3 MCC AS in the general population?
- senile calcification (MCC, esp age>70)
- bicuspid aorta (MC age<70)
- rheumatic heart dz
what is the most important RF for aortic dissection?
HTN (esp age>60)
h/o what aside from HTN incr risk of aortic dissection?
- marfan’s (MC age<40)
- cocaine use
through what mechanism does reynaud’s phenom occur?
vasospasm (mainly digital)
what is the pathophys of intermittent claudication?
PVD–> exertion induced ischemia –> m. cramps –> pain
CKD w/ BUN >60 sig incr risk of what complication? (hint: this is why emergent HD is done for uremia)
uremic pericarditis
what is apixaban?
factor Xa inhibitor
what are the uses of apixaban?
- nonvalvular afib
- DVT
- PE
how long should dual anticoag tx be used in pts w/ drug-eluting stents?
> = 12mos
what is the nL range for HDL?
HDL 30-70
what is the HDL target for therapy?
HDL > 40
what are the LDL targets for nonDM and DM pts w/ high cholesterol?
nonDM –> LDL < 100
DM –> DM < 70
pts w/ DM btwn what ages should receive ____ + lifestyle modifications + glucose control?
- between ages 40-75
- statins
what are 3 common causes of pulsus paradoxus?
- pericardial effusion/tamponade
- severe asthma
- COPD
BP falls by how much during insp. in pulsus paradoxus?
> 10mmHg
pt presents w/ CP and you suspect cocaine intox. how do you manage his/her pain?
- nitroglycerin
- CCB
pt presents w/ CP and you suspect cocaine intox. what do you give 1st?
IV benzos
why do you give IV benzos to pts w/ cocaine-associated chest pain?
- decr psychomotor agitation
- decr myocardial O2 demand
- decr cardiovasc s/s
what do you ABSOLUTELY NOT GIVE in cocaine-associated chest pain?
BB
what are the lifestyle mods recommended for HTN?
- weight loss (goal BMI <25) =BEST/MOST EFFECTIVE
- DASH diet
- exercise
- limit Na intake
- decr EtOH
how many mmHg will BP decr for every 10 kg weight lost?
5-10mmHg
what is the DASH diet?
- high fruit and veg
- low fat and salt
how much exercise is recommended per week?
30 min/d x5-6 d/wk
how much Na should be consumed per day by HTN pts?
< 3 g/day
how much EtOH is acceptable per day for HTN pts?
M –> <2 drink/d
F –> <1 drink/d
what lifestyle mod is most effective @ decr BP?
weight loss
how do AD genetic conditions generally present?
- age > 18 y/o (AD = aDults)
- mutation –> structural abnormality
how do AR genetic conditions generally present?
- age < 18 y/o
- mutation –> enzymatic abnormality
what type of genetic defect is hypertrophic cardiomyopathy?
AD
when to give nitroprusside?
HTN emergency
how do you medically manage aortic dissection?
control HTN & decr heart strain to decr dissection expansion:
- IV BB
- nitroprusside (only if BB fail)
why is hydralazine C/I in aortic dissection?
cause reflex tachy –> incr heart strain –> incr risk of enlarging the dissection
why is nitroprusside only used as 2nd line tx for aortic dissection?
can cause reflex tachy –> dissection enlargement
which IV BB are given as first line in aortic dissection and in what order are they given?
IV BB (decr HR-->decr heart strain-->decr risk enlargement) 1. labetolol 2 propranolol 3. esmolol **in that order**
what is the most likely cause of inguinal swelling + palpable thrill + new continuous murmur s/p heart cath?
abnormal AV communication
palpable thrill = ?
turbulence
what is a complication of cardiac cath that could lead to swelling, palpable thrill, and continuous murmur?
formation of an abn AV communication
how will an aneurysm feel on palpation?
pulsatile mass
a vein is occluded. how will the affected limp look?
red
an artery is occluded. how will the affected limb look?
pale
radiation of the chest can lead to ___?
constrictive pericarditis
infectious endocarditis will affect which valve 1st?
tricuspid valve (–> TR)
which murmurs are accenuated on insp vs expiration?
Right sided (Tricuspid, pulmonic)
Inspiration –> worsens murmur
Left sided (Mitral, aortic)
Expiration –> worsens murmur
what are the physiologic effects of BB on the heart?
decr HR
decr myocardial contractility
what are the physiologic effects of CCB on the heart?
decr HR
decr myocardial contractility
why can BB and CCB generally be used to tx the same conditions?
have same physiological effect via diff mechanisms (decr HR and contractility)
what do nondihydrapyrimadine CCB do?
- cause coronary artery vasodilation
- decr afterload
how do nitrates work?
vasodilation –> decr preload and decr END diastolic vol
chronic refractory/peristent angina should be treated w/ what?
- nitrates
2. ranolazine
what does ranolazine do?
incr myocardial Ca influx