A nurse is preparing a client who is scheduled for a transesophageal echocardiogram (TEE) the following day. Which of the following instructions should the nurse include about the test?

Choice A reason: Positioning on the stomach is incorrect for a transesophageal echocardiogram (TEE). TEE involves inserting a probe down the esophagus while the client is typically lying on their side, often sedated. Stomach positioning is not standard and could complicate probe insertion or visualization of cardiac structures. Choice B reason: Fasting for at least 6 hours before a TEE is critical to reduce aspiration risk, as the procedure involves esophageal probe insertion, often under sedation. An empty stomach minimizes the chance of vomiting, ensuring a safe procedure and clear visualization of cardiac structures via ultrasound. Choice C reason: Eating immediately after a TEE is not advised, as sedation and throat numbness from local anesthetic increase aspiration risk. Clients typically resume eating after the gag reflex returns and sedation wears off, usually a few hours post-procedure, to ensure safe swallowing and recovery. Choice D reason: A TEE does not check the lungs; it visualizes the heart and great vessels via an esophageal ultrasound probe. While it provides detailed cardiac images, it is not designed to assess pulmonary structures, making this an inaccurate instruction for TEE preparation.