A nurse is collecting data from a client during a routine prenatal visit. The client is in their second trimester of pregnancy and reports feeling dizzy, has a racing heart, and becomes pale while lying on their back. Which of the following actions should the nurse take?

Explanation C. Position the client on their left side The symptoms of feeling dizzy, racing heart, and becoming pale while lying on their back are consistent with supine hypotensive syndrome or vena cava syndrome. This condition occurs when the pregnant uterus compresses the vena cava, reducing blood flow back to the heart and causing a drop-in blood pressure. Positioning the client on their left side helps alleviate the pressure on the vena cava, allowing for improved blood flow and preventing further symptoms. This position optimizes blood circulation and reduces the risk of complications. The nurse should assist the client in turning onto their left side and ensure they are comfortable. Providing the client with a glass of orange juice (option A) is not recommended as it may be helpful in cases of low blood sugar or hypoglycemia, but it is not the most appropriate action in this scenario. Instructing the client to take a brisk walk (option B) is not recommended since physical exertion can further worsen the symptoms and increase the risk of complications. Checking the client's temperature (option D) is not necessary as the reported symptoms are not indicative of a fever or infection. Therefore, the most appropriate action for the nurse to take in this situation is to position the client on their left side (option C).