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?

The client's symptoms of feeling dizzy, having a racing heart, and becoming pale while lying on their back are consistent with supine hypotension syndrome, also known as vena cava syndrome. This occurs when the weight of the uterus compresses the inferior vena cava, reducing blood flow and causing symptoms. To address this issue, the nurse should Position the client on their left side. Lying on the left side helps relieve the pressure on the inferior vena cava and improves blood flow. This can alleviate the symptoms and prevent further complications. Instructing the client to take a brisk walk is not appropriate in this situation, as it may exacerbate the symptoms by increasing heart rate and potentially causing further dizziness or fainting. Checking the client's temperature is not necessary in relation to these symptoms, as they are not indicative of a fever or infection. Providing the client with a glass of orange juice may be helpful in some situations, such as if the client is experiencing hypoglycemia. However, in this case, the symptoms are likely due to supine hypotension syndrome, and repositioning the client is the priority intervention.