A nurse is measuring the fundal height of a client who is at 36 weeks of gestation. The client suddenly reports nausea. Which of the following actions should the nurse take?

A. Use Leopold maneuvers to determine the fetal position: Leopold maneuvers are used to assess fetal lie, presentation, and position. While important for assessment, they do not address acute maternal symptoms such as sudden nausea, which may indicate supine hypotensive syndrome. B. Ask the client to increase her daily calcium intake: Calcium intake is unrelated to sudden nausea in a client at 36 weeks of gestation. Adjusting dietary calcium will not alleviate acute symptoms caused by maternal positional hypotension. C. Administer propranolol IV to the client: Propranolol, a beta-blocker, is not indicated for sudden nausea associated with late-stage pregnancy. Its use could adversely affect maternal blood pressure and fetal heart rate without addressing the underlying cause. D. Position the client on her side: Lying supine in late pregnancy can compress the inferior vena cava, reducing venous return and cardiac output, which may cause nausea, dizziness, or hypotension. Positioning the client on her left or right side alleviates vena caval compression and improves maternal perfusion and symptom relief.