A client with possible acute kidney injury (AKI) is admitted to the hospital and mannitol is prescribed as a fluid challenge. Prior to carrying out this prescription, what intervention should the nurse implement?

Acute kidney injury (AKI) can have significant impacts on the client's fluid and electrolyte balance. Mannitol, a diuretic, is commonly used to promote diuresis and increase urine output in cases of AKI. However, it is essential to assess the client's hemodynamic status and overall condition before administering mannitol. Obtaining vital signs (such as blood pressure, heart rate, respiratory rate, and temperature) helps evaluate the client's baseline status and monitor for any changes that may occur after administering mannitol. It is particularly important to assess blood pressure as mannitol can potentially cause hypotension as a side effect. Assessing breath sounds is also crucial because pulmonary edema can occur as a complication of AKI. Mannitol administration may exacerbate this condition. Therefore, assessing breath sounds allows the nurse to monitor for signs of fluid overload, such as crackles or wheezes. Collecting a clean catch urine specimen may be necessary for diagnostic purposes to assess kidney function and determine the presence or severity of acute kidney injury. However, obtaining vital signs and assessing breath sounds should be the first nursing intervention before administering any medication, including mannitol, to ensure the client's safety and monitor for any potential adverse effects.