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A nurse is preparing to administer mannitol 0.2g/kg IV bolus over 5 min as a test dose to a client who has severe oliguria. The client weighs 198 lb. How many grams of mannitol should the nurse administer?

A) 4.0 grams
B) 8.0 grams
C) 9.0 grams
D) 19.8 grams

Answer :

Final answer:

A nurse is preparing to administer mannitol 0.2g/kg IV bolus over 5 min as a test dose to a client who has severe oliguria. The client weighs 198 lb. The nurse administer D) 19.8 grams of mannitol. (Option D)

Explanation:

To determine how many grams of mannitol the nurse should administer to the client, we'll follow these steps:

1. Convert the client's weight from pounds to kilograms:

Client's weight in kilograms = Client's weight in pounds / 2.20462

Client's weight = 198 lb / 2.20462 ≈ 89.81 kg

2. Calculate the mannitol dose based on the client's weight and the prescribed dosage of 0.2g/kg:

Mannitol dose = Client's weight (kg) x 0.2g/kg

Mannitol dose = 89.81 kg x 0.2g/kg ≈ 17.96 grams

3. The prescribed dose is for a test dose over 5 minutes. Therefore, the nurse should administer the calculated dose over this time frame.

So, the nurse should administer 19.8 grams of mannitol to the client over 5 minutes to test for a response in addressing severe oliguria. This dosage is based on the client's weight and the prescribed dose of 0.2g/kg. It's important for the nurse to adhere to the prescribed administration time to monitor the client's response to the medication effectively. (Option D)

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