A nurse is teaching a client who is at 37 weeks of gestation and has a prescription for a nonstress test. Which of the following instructions should the nurse include?

The correct answer is D: You should press the handheld button when you feel your baby move. In a nonstress test, the client is required to press a handheld button whenever they feel the baby move. This action helps to correlate fetal movements with changes in the fetal heart rate, allowing healthcare providers to assess the baby's well-being. This active participation from the client ensures accurate monitoring of the baby's condition. The other choices are incorrect because: A: The duration of a nonstress test can vary but typically takes around 20-40 minutes. B: Lying in a supine position is not recommended during pregnancy as it can decrease blood flow to the baby. C: It is important for the client to have a light meal before the test to ensure the baby is active during monitoring.