cardio first aid Flashcards
(220 cards)
umbilical vein
ligamentum teres hepatis
umbilic arteries
medial umbilical ligaments
ductus arteriosus
ligamentum arteriosum
ductus venosus
ligamentum venosum
foramen ovale
fossa ovalis
allantois
urachus-median umbilical ligamnt
notochord
nucleus pulposus of intervertebral disc
where do you see increased pulse pressure?
hyperthyroidism, AR, arteriosclerosis, obstructive sleep apnea, increased sympathetic tone, exercise (transient)
where do you see decreased pulse pressure?
AS, cardiogenic shock, cardiac tamponade, advanced heart failure
contractility increases with
catecholamines
increased intracellular Ca2+
decreased extracellular Na+
digitalis
contractility decreases with
beta1 blockade heart failure with systolic dysfunction acidosis hypoxia and hypercapnea non-dihydropyridine ca2+ channel blockers
SV inreases with
anxiety
exercise
pregnancy
myocardial oxygen demand increases with
afterload
contractility
HR
ventricular diameter
venodilators effect what cardiac output variable?
decrease preload (nitroglycerin is an example)
vasodilators effect what cardiac output variable?
decrease afterload (eg. Hydralazine)
ACE inhibiors and ARBs effect what cardiac output variable?
decrease preload and afterload
how is ejection fraction effected by heart failure
decreased in systolic heart failure but normal in diastolic heart failure
what increases venous return
fluid infusion
sympathetic activity
what decreases venous return
acute hemorrhage
spinal anesthesia
what increases TPR?
vasopressors
what decreases TPR?
exercise, AV shunt
S1
MV and TV closure
loudest at mitral area
S2
AV and PV closure
loudest at left sternal border
S3
early diastole during rapid ventricular illing
patho: MR, CHF, dilated ventricles
normal: children, pregnant women