A nurse is caring for a client who has end-stage liver disease and is undergoing a paracentesis. Which of the following actions should the nurse take to evaluate the effectiveness of the procedure?

A. Incorrect. Documenting the client's understanding of adverse effects is important, but ensuring the client's knowledge about diaphragm use is the first step.

B. Incorrect. Teaching the client how to insert the diaphragm can be an important step, but first, it's essential to assess the client's existing knowledge.

C. Correct. Before proceeding with teaching or other actions, it's important to determine the client's baseline understanding of diaphragm use.

D. Incorrect. Supervising the return demonstration is important but should come after the client's knowledge level is assessed.

Choice A rationale:

Oxytocin is not typically administered during a nonstress test. Oxytocin is a hormone that induces or augments labor contractions; it is not used in nonstress testing, which monitors fetal heart rate and movement. The administration of oxytocin during nonstress testing would not be appropriate or necessary.

Choice B rationale:

Fasting is not required for a nonstress test. Nonstress testing involves attaching electronic fetal monitors to the mother's abdomen to measure the baby's heart rate and movement. It does not require the patient to abstain from eating or drinking. Imposing unnecessary restrictions on the client's diet could cause discomfort and anxiety, which is not conducive to an accurate assessment.

Choice C rationale:

Nonstress testing is used to evaluate the baby's heart rate response to its own movements. It does not diagnose genetic problems. Genetic testing, such as amniocentesis or chorionic villus sampling, is a different type of test used to detect genetic abnormalities in the fetus. Therefore, this statement does not reflect an understanding of the purpose of nonstress testing.

Choice D rationale:

This is the correct answer. Nonstress testing involves monitoring the baby's heart rate and movement. During the test, the mother pushes a button when she feels the baby move. This allows the healthcare provider to correlate fetal movements with changes in the baby's heart rate. An understanding of this process indicates that the client comprehends the purpose and procedure of the nonstress test.