Flashcards in First Year Deck (14)
mechanism of action of dabigatran?
direct thrombin inhibitor
mechanism of rivaroxaban?
direct factor X inhibitor
mechanism of heparin?
activates anti-thrombin III
mechanism of clopidogrel?
what causes first heart sound?
closure of mitral and tricuspid valves
soft in mitral regurgitation
loud in mitral stenosis
what causes second heart sound?
closure of aortic and pulmonary valves
soft in aortic stenosis
often split during inspiration
S3 is always abnormal, true or false?
can be normal in people under 30 (women up to 50)
what causes S3?
diastolic filling of ventricles
left ventricular failure
what causes S4?
atrial contraction against a stiff ventricle
can be heard in hypertrophic cardiomyopathy, LVH, aortic stenosis, hypertension
how does AF affect JVP?
absence of a waves
spirometry in COPD?
FEV1/FVC is reduced as there is a lerger decrease in FEV1 than FVC
strawberry tongue and red palms and soles of feet in a child?
where does the abdominal aorta begin and terminate?
T12 - L4