Calculate the pulmonary vascular resistance (PVR) given the following measurements obtained during a hemodynamic study:
pulmonary artery pressure (PAP) = 40/22 mm Hg, pulmonary artery occlusion pressure (PAOP) = 12 mm Hg, blood pressure (BP) = 156/80 mm Hg, central venous pressure (CVP) = 19 mm Hg, cardiac output (C.O.) = 4.8 L/min, and heart rate (HR) = 68 beats/min.
a. 150 dyne ? sec ? cm?5
b. 267 dyne ? sec ? cm?5
c. 317 dyne ? sec ? cm?5
d. 1496 dyne ? sec ? cm?5
ANS: B
PVR = [(MPAP − MLAP)/PBF] ? 80
You might also like to view...
During fire operations at a high-rise building, the fire department should arrange to meet with the building's ___ for assistance with building operations
A) architect B) owner C) engineer D) security
OSHA's ________ clause requires employers to maintain a workplace free from hazards that are recognized as likely to cause death or serious injury.
Fill in the blank(s) with the appropriate word(s).
Which of the following is considered to be a closed wound?
A) Hematoma B) Abrasion C) Laceration D) Crush injury
When compared to single-phase electrical current, three-phase power
a. permits shorter exposures. b. produces 360 pulses per second. c. produces less voltage ripple. d. all of the above