A nurse is explaining the purpose of a Doppler ultrasound blood flow analysis to a client who has intrauterine growth restriction (IUGR).

The nurse should inform the client that this test measures which of the following?

The patient should wear loose-fitting clothing and lie supine on an examination table.

This is because loose-fitting clothing allows easy access to the abdomen and lying supine helps relax the abdominal muscles.

The patient should also avoid food and drinks for 8 to 12 hours before the test, as undigested food can interfere with the sound waves and affect the image quality.

Choice A is wrong because a full bladder is not necessary for an abdominal ultrasound, unless the patient is pregnant or has a pelvic condition.

A transvaginal ultrasound is a different type of ultrasound that uses a probe inserted into the vagina to examine the reproductive organs.

Choice B is wrong because tight-fitting clothing can restrict the movement of the ultrasound probe and make it harder to get a clear image.

Lying prone (on the stomach) can also tense up the abdominal muscles and obscure the organs.

Choice D is wrong because lying prone can have the same disadvantages as choice B. Additionally, wearing loose-fitting clothing does not mean that the patient can eat or drink anything before the test, as this can affect the results.

“I will have sensors placed on my abdomen to monitor the FHR and uterine contractions.” This statement indicates the client understands the test procedure of a CST, which is a test that triggers contractions and registers how the baby’s heart reacts.

The test is done by placing two sensor belts around the abdomen, one to measure the baby’s heartbeat and the other to measure contractions.

The client may receive oxytocin through an IV to induce contractions.

Choice B is wrong because the client does not need to fast for 24 hours before the test.

There is no evidence that fasting is required for a CST.

Choice C is wrong because the client will not be sedated during the test.

Sedation is not necessary for a CST and may interfere with the results.

Choice D is wrong because the client does not need to drink plenty of fluids before the test.

There is no evidence that drinking fluids is required for a CST.