The proximal opening on a pulmonary artery catheter is used to measure:
a. cardiac output. c. pulmonary artery pressure.
b. central venous pressure. d. pulmonary capillary wedge pressure.
ANS: B
When a pulmonary artery catheter is in the proper position, the proximal port will be located in the right atrium and can be used to monitor central venous pressure. Cardiac output can be meas-ured by using the thermistor a few centimeters from the tip of the catheter. The pulmonary artery pressure is measured by using the distal port without balloon inflation when in the pulmonary ar-tery. When the balloon is inflated, the distal port will measure the pulmonary capillary wedge pressure.
You might also like to view...
When comparing the pediatric Chain of Survival to the adult Chain of Survival, the EMT would note that the pediatric version differs in which way?
A) Emphasis on ventilations over compressions B) Less attention to post-resuscitation care C) Prevention of cardiac arrest D) Emphasis on ALS over BLS
The time required for the plasma concentration of a drug to decrease by one-half is referred to as
a. bioavailability. b. biotransformation. c. drug distribution. d. plasma half-life.
This injury is caused by repetitive impact trauma to the heel affecting the thick and fibrous connective tissue that extends the length of the foot beginning at the heel
A) Plantar fasciitis B) Rickets C) Scoliosis D) Scurvy
A 66-year-old woman is found to be unresponsive and apneic. Her carotid pulse is weak and rapid. When ventilating this patient, you should deliver:
A) each breath over 2 seconds at a rate of 8 to 10 breaths/min. B) one breath over 1 second every 3 to 5 seconds C) one breath over 2 seconds every 5 to 6 seconds. D) each breath over 1 second at a rate of 10 to 12 breaths/min.