Hemodynamics Flashcards
processes that alter preload, contractility, after load, and heart rate lead to
decreased CO
hyper or hypovolemia
ineffective tissue perfusion
how does mild tachycardia impact CO
increase it
how can significant tachycardia impact CO
decrease it
when do coronary arteries fill
diastole
- that’s why tachycardia can decrease coronary artery filling time
what are some things we want to assess for fluid status
lung sounds
weight
urine output
neck veins
heart sounds
CXR
oxygen saturation
what is the greatest indicator to afterload
blood pressure and MAP
allens test
occluding the ulnar and radial artery to ensure ulnar is providing adequate blood flow before placing a line in the radial artery
dampend waveform
loses amplitude and crispness
some indications for pulmonary artery pressure monitoring
shock
ARDS
how can we know if the SWAN pump is in the right ventricle
large wave patterns
passive leg raise evaluates
volume status
what is preload most accurately determined by
pulmonary artery occulding pressure
AKA
pulmonary capillary wedge pressure
normal is <12 (4-12)
what is the frank starling curve
if you increase preload too much, you will actually decrease the CO
