A nurse is preparing a client for a paracentesis. Which of the following actions should the nurse take?

Rationale: A. Place the client in supine position: The supine position is not ideal for paracentesis. The procedure is typically performed with the client sitting upright on the edge of the bed or in a high Fowler’s position, allowing fluid to collect in the lower abdomen and reducing the risk of organ puncture. B. Ensure the client has a full bladder: A full bladder increases the risk of bladder puncture during paracentesis. Clients are usually asked to void before the procedure to minimize this risk and promote safety. C. Obtain a creatinine level: While kidney function may be relevant to overall health, measuring creatinine is not required specifically for paracentesis. The procedure focuses on removing ascitic fluid and assessing for infection or other complications, not directly on renal function. D. Weigh the client: Weighing the client before the procedure establishes a baseline to evaluate the amount of fluid removed and monitor changes in fluid status. Pre- and post-procedure weights help assess effectiveness and detect complications such as hypotension or fluid shifts.