In dialysis, 'dry weight' refers to the weight after treatment when:

• A. All excess fluid has been removed
• B. The patient has regained hydration
• C. The dialyzer is connected to the circuit
• D. The patient is at ideal body weight

Answer: (A)

The main idea here is that dry weight is the post-dialysis weight that reflects no extra fluid in the body. After a dialysis session, the goal is to remove all excess fluid so the patient’s weight represents their true, normovolemic state. This helps keep blood pressure stable and prevents edema. So the best answer is that all excess fluid has been removed.

The other ideas don’t fit: regaining hydration would mean having extra fluid, not being at dry weight; simply having the dialyzer connected to the circuit isn’t about the patient’s weight; and ideal body weight can differ from dry weight if the patient carries extra fluid or is dehydrated.