Unit 2 study guide 2 Flashcards
PAP- pulmonary artery pressure
15-26
pulmonary artery catheter
multi-lumen cath w capacity to measure right atrial and indirect left arterial pressure (pulmonary artery wedge pressure)
left ventricular end-diastolic pressure (LVEDP)
tip of cath in pulmonary art
pulmonary artery wedge pressure-3
- pressure measured during balloon inflation
- left artial pressure and LVEDP
- 4-12
elevated PAWP-4
left ventricular heart failure, hypovolemia, mitral regugitation, intra cardiac shunt
right atrial pressure (RA)
8-15
abnormal RA-2
high-right ventricular failure,
low-hypovolemia
cardiac output
vol of blood pumped in 1 min
-4-8
cardiac index
measurement of CO adjusted for body surface area
-2.5-4.2
stroke volume
volume ejected w each heart beat, stretch of ventricle
systemic vascular resistance-3
opposition encountered by left vent
- low-dilated
- high-constriction
preload
vol within ventricle at the end of diastole
afterload-3
forces opposing ventricular ejection
- vasodilators can reduce
- stroke volume resistance
before placing PA cath-6
electrolytes, acid-base, O2, and coags
-hypokalemia, hypomagnesaemia
systole
pressure when heart contracting and exertine most force on arteries