Author Question: MC When assessing the ECG for pacemaker function you notice the oscilloscope is not showing the ... (Read 21 times)

fagboi · **on:** Jul 24, 2018

MC When assessing the ECG for pacemaker function you notice the oscilloscope is not showing the usual artifact. The initial intervention should be:

A. Notify physician immediately that pacemaker is dysfunctional.
B. Check all connections to determine a secure fit.
C. Check battery.
D. Observe that sutures are intact.

Question 2

The nurse is caring for a patient with a large stasis ulcer. She has just changed the wound dressing and is using a negative-pressure wound system. What can the nurse tell the patient about the functioning of this system?

a. Decreases the amount of angiogenesis
b. Reduces mechanical stretch of tissue
c. Dressing should not need to be changed for 48 hours
d. Helps create a dry environment

adammoses97 · **Reply #1 on:** Jul 24, 2018

Answer to Question 1

A

Answer to Question 2

C
The dressing is changed on a scheduled basis, usually no earlier than 48 hours. Researchers believe that blood flow increases because of the removal of wound fluid and angiogenesis (development of new blood vessels), and that this stimulates the production of new blood vessels via mechanical stretch of the tissue. The dressing placed into the wound maintains a moist environment to facilitate healing. A suction device is placed over the dressing, and the dressing, suction, and wound area are covered with a transparent dressing, which provides the air-tight seal necessary for negative-pressure wound therapy (NPWT).