A client is scheduled for a transthoracic echocardiography (TTE). What should the nurse teach the client in anticipation of this diagnostic procedure?

A. When the client states he is ready to start the infusion:

While it's important to consider the client's readiness and cooperation, the timing of the infusion should not solely depend on the client's statement. The priority is to start the infusion promptly after receiving the packed red blood cells (PRBCs) from the blood bank to ensure their safety and effectiveness.

B. As soon as the nurse can prepare the client and the administration set:

This choice is the correct answer. After receiving the unit of PRBCs from the blood bank at 1130, the nurse should begin the infusion as soon as possible after preparing the client (ensuring the correct patient, verifying the blood type compatibility, obtaining informed consent, etc.) and the administration set (priming the IV tubing, checking for any leaks, etc.). Prompt administration helps prevent delays that could compromise the quality of the blood product.

C. 2 hours after obtaining blood from the blood bank:

Waiting for 2 hours before starting the infusion is too long and could exceed the recommended timeframe for administering PRBCs after obtaining them from the blood bank. Delaying the infusion for such an extended period could impact the viability and safety of the blood product.

D. When the client has finished eating lunch:

The timing of the client's meal is not a factor in determining when to start the infusion of PRBCs. While it's generally important for the client to have adequate nutrition and hydration, the priority is to administer the blood product promptly after preparation to ensure its efficacy and safety, rather than waiting for unrelated factors such as meal times.

A. "Dehydration Is the primary reason for the pain that is experienced during a sickle cell crisis; try to increase your son's fluid intake."

This response is not the best choice because while dehydration can indeed exacerbate sickle cell crises and lead to complications, it is not the primary reason for the pain experienced during a sickle cell crisis. The severe pain during a crisis is primarily due to vaso-occlusion, where sickled red blood cells block blood flow in the small blood vessels, leading to tissue ischemia and pain. While adequate hydration is important in managing sickle cell disease, it alone does not address the underlying cause of the pain during a crisis.

B. "We really don't know what causes the pain that is experienced during a sickle cell crisis."

This response is not accurate and not the best choice because the medical community does understand the underlying cause of pain during a sickle cell crisis. It is primarily due to vaso-occlusion, as mentioned earlier, where sickled red blood cells block blood flow in the blood vessels.

C. "Sickled cells get clogged in the blood vessels, preventing blood from getting to the tissues, which causes the severe pain of a crisis."

This response is the best choice because it provides an accurate and clear explanation of why individuals with sickle cell anemia experience severe pain during a sickle cell crisis. It addresses the underlying mechanism of vaso-occlusion, where sickled red blood cells block blood flow in the small blood vessels, leading to tissue ischemia and severe pain.

D. "You will need to discuss this with your doctor. I cannot explain why this pain occurs to your

son."

This response is not the best choice because the nurse should be able to provide basic information about the disease and its symptoms to the mother. It's important for healthcare professionals to educate patients and their families about their condition to improve understanding and facilitate better management and coping strategies.