Cardiology Flashcards
CHA2DS2VASc components
Congestive HF HTN A2 age 65-74 or 75+ Diabetes S2 stroke, TIA or VTE before Vascular disease (IHD, PAD) Sex - female
anticoagulation based on CHADVASC score
0 - no treatment
1 - males - consider anticoag, females - no treatment
2 - offer anticoag
management of supraventricular tachycardia
valsava manoeuvre (a vagal manoeuvre) IV adenosine if doesn't work electrical cardioversion if doesn't work
where is a mitral stenosis murmur heard and what position accentuates it?
apex
accentuated lying on left
what murmur can rheumatic heart disease cause?
it’s the commonest cause of mitral stenosis murmur
timing of mitral stenosis
mid diastolic
timing of aortic stenosis
ejection systolic
paediatric ejection systolic murmurs
ASD (HS I - AV valves closing)
fallot’s
holosystolic murmurs
mitral + tricuspid regurgitation - AV valves that make HS I
VSD
what timing is aortic regurgitation?
early diastolic - aortic valve is HS II
continuous machine-like murmur - what could it be?
patent ductus arteriosus
hypokalaemia on ECG
U waves
small/absent/inverted T waves
prolonged PR + QT
ST depression
name 1 drug that can cause hypokalaemia
furosemide
diagnosis of HF in someone who’s had a previous MI
echo in 2 weeks
diagnosis of HF in someone who’s not had a previous MI
measure BNP
if high - echo in 2 weeks
if raised - echo in 6 weeks
what should be used for anticoagulation in AF?
warfarin or NOAC
aspirin not recommended for reducing stroke risk
HASBLED - used to calculate risk/benefit of starting someone on warfarin
HTN uncontrolled Abnormal renal/liver function Stroke Bleeding history Labile INRs Elderly (>65) Drugs predisposing to bleeding or alcohol (>8 drinks/week)
3+ - high risk of bleeding
how does warfarin work?
inhibits reduction of vitamin K
this helps carboxylate clotting factors 1972 + protein C
warfarin - target INR post VTE? (first time and recurrent time)
2.5
if recurrent - 3.5
warfarin - target INR of AF?
2.5
5 things that potentiate warfarin
liver disease P450 inhibitors: amiodarone ciprofloxacin cranberry juice NSAIDs
SEs of warfarin
teratogenic (but fine breastfeeding)
skin necrosis
purple toes
someone on warfarin after PE. INR drops to 1.3. what to do?
increase warfarin dose
start LMWH - rapid anticoag - until INR fine
what is the cutoff for investigating BP?
140/90 +
stages of HTN
1 - clinic 140/90+ - abpm/hbpm 135/85+
2 - clinic 160/100+ - abpm/hbpm 150/95+
severe - clinic 180/or/110+
what are the criteria for treating HTN?
stage 2, or stage 1 (135/85)+, <80y and target organ/CV/renal disease/diabetes/10y CV risk 20%+
if an ACEi + CCB combo isn’t working, what’s the next thing to add for HTN? examples?
thiaziude-like diuretic eg chlorthalidone or indapamide
if ACEi, CCB + thiazide diuretic aren’t working, what’s next mgmt for HTN? what BP defines not working?
140/90+ - resistant HTN
if K 4.5 or less - spironolactone
if K > 4.5 - higher-dose thiazide-like treatment
if this doesn’t work consider alpha or beta blocker
what are the BP targets?
<80y - clinic 140/90; amb/home 135/85
> 80y - clinic 150/90; amb/home 145/85
management of VT
immediate cardioversion if adverse signs - BP < 90, CP, HF, LOC
if not, antiarrhythmics eg amiodarone
if fails, electrical cardioversion - DC shocks
what could a broad complex tachycardia with low BP indicate?
ventricular tachycardia