A nurse is administering medication to a client with a ...

[Bob-Dole]

A nurse is administering medication to a client with a triple-lumen central venous catheter. Which of the following actions should the nurse perform to maintain patency of an unused lumen?
 
  A) Flush it with normal saline and/or heparin
  B) Keep the lumen clamped at all times
  C) Swab the port with an alcohol sponge
  D) Pinch the tubing above the access port

Question 2

All of these tests require the client to be NPO prior to the test. Which one requires that the client have no exposure to barium for at least 4 days before the test?
 
  a. barium swallow c. gallbladder series
  b. computed tomography d. renal angiography

[jessofishing]

Answer to Question 1

A
Feedback:
The unused lumen is kept patent by scheduled flushes with normal saline and/or heparin. Releasing the clamp, if there is one on the exposed section of the catheter, facilitates flushing the catheter and helps in maintaining the patency. When administering medication through an intravenous port, the nurse pinches the tube above the access port and swabs the port with alcohol.

Answer to Question 2

B
Nursing responsibilities for a client receiving a computed tomography (CT) scan include: NPO 8 hrs prior to the test, no exposure to barium for at least 4 days before the test, assessment for allergies to iodine and shellfish, and that the client must be able to lie still on a hard, flat table for 45 minutes to 1 hour.