Which of the following best describes the purpose of a ventricular assist device?
a. Assisting in gas exchange between oxygen and carbon dioxide at the alveolar level
b. Pumping deoxygenated blood to the pulmonary system to acquire oxygen
c. Opening the coronary vessels to provide more room for blood flow
d. Pumping blood from the lower chamber of the heart to perfuse the organs and tissues
d. Pumping blood from the lower chamber of the heart to perfuse the organs and tissues
rationale: A ventricular assist device (VAD) is used for clients with a weakened heart. This pumps blood from the ventricles to perfuse the organs and tissues in the same way that the heart normally would. This device may be used to support a client's heart following surgery or while waiting for a heart transplant.
You might also like to view...
When working with gay and lesbian families, which of the following must the community health nurse do first?
A) Determine if the union is legal or not. B) Confront personal biases about this type of family structure. C) Address the usual parental fears and concerns. D) Plan additional services to address children's delayed development.
Which are changes found in the urinary system as a result of aging?
a. ability to conserve sodium is decreased b. glomerular filtration rate increases c. stress incontinence increases in females d. enlarged prostate by cause frequency or dribbling e. BUN decreases
Which department delivers health care to members of the military?
1. The Department of Defense 2. The Department of Labor 3. The Department of Agriculture 4. The Department of Justice
Natalie is experiencing uterine contractions during her 7th month of pregnancy. Which of the following would be true in this situation?
A. Magnesium sulfate will slow Natalie?s uterine contractions but may increase her heart and respiratory rate. B. Natalie should refrain from using nifedipine for her contractions because it has been specifically disapproved by the FDA for this indication. C. The benefit of having the Natalie's baby come to full term in utero can be substituted by the use of high-tech neonatal intensive care units. D. Natalie should use terbutaline, which inhibits uterine contractions, although it increases the heart rates of the mother and fetus.