Cardiology Flashcards
(126 cards)
6 causes of orthostatic hypotension
Pregnancy Postprandial or exercise induced venous pooling Extended rest (deconditioning) Nifedipine Diabetic neuropathy Parkinson's
Adult dose of adrenaline for analphylaxis
0.5ml of 1 in 1000 (500 micrograms) IM
2 changes on echo for HOCM
Asymmetric septal hypertrophy
Systolic anterior movement (SAM) of anterior leaflets of mitral valve
When to treat stage 1 hypertension in <80s (5 reasons)
Diabetic Renal disease QRISK2 >20% Established coronary vascular disease End organ damage
Lifestyle advice for hypertension
Salt Caffeine Smoking Exercise Alcohol Weight loss Fruit and vegetables
PE scans and contraindications
CTPA unless renal impairment or allergy to contrast - then VQ scan
What drug can mask hypoglycaemic symptoms?
B blockers
Drugs that can cause long qt
Amiodarone, sotalol, class 1a antiarrhythmics TCAs, SSRI (citalopram), haloperidol Methadone Erythromycin
Non drug causes of long qt
Anterior MI Myocarditis Hypothermia SAH Electrolytes - low calcium, potassium, magnesium
First ECG change for MI
Hyperacute T waves
Anaphylaxis salbutamol and adrenaline repeats?
Back to back salbutamol nebs
Adrenaline every 5 mins
BP targets for diabetics
130/80 if end organ damage (renal disease, retinopathy)
Otherwise 140/80
ABG changes with PE
pH high
pO2 and pCO2 low
Murmur with infective endocarditis
Pansystolic, left lower sternal border
Management of patients on warfarin needing emergency surgery
If in 6-8h, give 5mg IV vit k
If surgery immediately, 25-50u/kg 4 factor prothrombin complex
4 features of rheumatic fever
Erythema marginatum
Sore throat
Chorea
Polyarthralgia
Aortic stenosis top cause
<65 = bicuspid valve >65 = calcification
Mechanism of adenosine
Agonist of A1, inhibiting adenylyl cyclase so reduces cAMP and causes hyperpolarisation by potassium efflux
3 ADRs of adenosine
Bronchospasm
Chest pain
Enhance conduction down accessory pathways, increasing ventricular rate
Adrenaline dose for 6-12 year olds
300 micrograms 1 in 1000
Heart sounds for AS (2)
Split second heart sound
Ejection systolic murmur
heart sound for left heart failure
Third heart sound
Management of INR 5-8 on warfarin with no bleeding
Withold 1 or 2 doses and reduce maintenance dose
Features of constrictive pericarditis
Dyspnoea
Right heart failure - raised JVP, ascites, oedema, hepatomegaly
Loud S3 - pericardial knock
Kussmaul’s sign