What initial intervention should the nurse implement for a client with suspected rhabdomyolysis?

Administering intravenous fluids is crucial as an initial intervention for a client with suspected rhabdomyolysis because this condition is characterized by the breakdown of muscle tissue, which releases myoglobin into the bloodstream. Myoglobin can lead to kidney damage as it is processed by the kidneys, and adequate hydration helps to dilute myoglobin in the urine and promotes its excretion.

Intravenous fluids, typically a saline solution, help to maintain renal perfusion, prevent acute kidney injury, and facilitate the removal of nephrotoxic substances. In cases of rhabdomyolysis, ensuring sufficient fluid intake is vital to mitigate potential complications such as acute kidney failure due to the high levels of toxins released from damaged muscle tissue.

While other options like dietary adjustments or medications may be relevant later in the treatment process, they do not address the immediate need to protect the kidneys and ensure the safe removal of myoglobin from the body.