cardiology Flashcards
investigation for infective endocarditis
3 blood cultures taken from different parts of the body atleast 1 hour apart and a transoesophageal echocardiogram
diagnosis for infective endocarditis
dukes critera: either 2 major criteria, 1 major and three minor or 5 minor
What is in duke major criteria
positive blood culture tests, strong suggestive abnormality on echo
what is in duke minor criteria
fever more than 38, positive blood culture, but not for correct organism, cardiac/valvular abnormality, vasculitic phenomenon, embolic phenomenon, suggestive echo
When does aortic stenosis in someone with a biscupid valve present
by 30 years
what is the difference between stenosis and regurgitation
stenosis: valve cannot open properly and impedes forward flow and regurgitation: cannot close properly causing reverse flow
In which group is mitral valve prolapse most common
mainly women
most common cause of mitral valve regurg
what happens to the valves during mitral valve prolapse
dense collagen and elastin matrix is replaced by myxoedematous glucoaminoglycans
What is acute heart failure always a complication of
MI, either ischaemia, papillary muscle rupture or developing an arrythmia
what is the most important risk factor for developing AAA
atherosclerosis
characterising malignant/accelerated hypertension
marked raised diastolic pressure over 130mm-140Hg in younger adults where their arteries are not protected by atherosclerosis, fibrinoid necrosis nests are formed within arteries and there are complications of acute renal failure, blindness and microangiopathic haemolytic anaemia and DIC are complications
investigation for all patients with suspected pericarditis
transthoracic echo
what is the first and second line for supraventricular tachycardia
valslava manouevre and then adenosine
side effect of adenosine
flushing
Where does furosemide act
ascending loop of henle
when should people with a NSTEMI need a coronary angiography
grace score more than 3% do a coronary angiography within 72 hours
common cause of infective endocarditis in iv drug users
staph auerus- highly pathogenic
what to do for severe pneumonia (CAP)
coamoxiclav
What pneumonia causative agents does the urine antigen test for
legionella and strep pneumoniae
how are TSH and T4 and T3 affected by severe pneumoniae
normal TSH and low T4/T3
give examples of inspiratory and expiratory wheeze
inspiratory: croup, epiglottitis, anaphylaxis and expiratory: COPD and asthma
where would you see curshmann’s spirals
asthma