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A nurse is preparing to administer tobramycin 3 mg/kg/day IM in three divided doses to a client who weighs 85 kg. The amount available is Tobramycin 40 mg/mL. How many mL should the nurse administer per dose?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["2.1"]

To calculate the amount of tobramycin that the nurse should administer per dose, we can use the following steps:

Calculate the total daily dosage required based on the client's weight and the prescribed dosage.

Determine the dosage per each of the three divided doses.

Calculate the volume of the drug needed for each dose using the concentration of the available tobramycin solution.

Given:

Client's weight = 85 kg

Prescribed dosage = 3 mg/kg/day

Available concentration of tobramycin = 40 mg/mL

Let's calculate step by step:

Calculate the total daily dosage required:

Total daily dosage = 3 mg/kg/day × 85 kg = 255 mg/day

Determine the dosage per each of the three divided doses:

Dosage per dose = Total daily dosage / 3 = 255 mg / 3 = 85 mg

Calculate the volume of the drug needed for each dose using the concentration of the available tobramycin solution:

Volume of drug per dose = Dosage per dose / Concentration of tobramycin

Volume of drug per dose = 85 mg / 40 mg/mL ≈ 2.1 mL

Rounding to the nearest tenth, the nurse should administer 2.1 mL of the tobramycin per dose.

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Free Nursing Study Resources

Correct Answer is C

Explanation

Choice A reason: This choice is incorrect because stomach distension and constipation are not common side effects of furosemide. They may be related to other causes, such as diet, fluid intake, or medication interactions. The nurse should assess the client's abdominal status and bowel habits and provide appropriate interventions, such as increasing fiber, fluids, or laxatives.

Choice B reason: This choice is incorrect because IV site irritation, redness, and pain are not specific side effects of furosemide. They may be caused by other factors, such as infection, infiltration, or phlebitis. The nurse should inspect the IV site and catheter and change them if needed. The nurse should also monitor the client's vital signs and blood cultures for signs of infection.

Choice C reason: This choice is correct because hearing loss or impairment is a rare but serious side effect of furosemide. It can occur due to damage to the inner ear or the auditory nerve. It may be temporary or permanent, depending on the dose and duration of furosemide therapy. The nurse should stop the infusion of furosemide and notify the provider immediately. The nurse should also assess the client's hearing and balance and provide safety measures.

Choice D reason: This choice is incorrect because frequent urination is an expected effect of furosemide. Furosemide is a diuretic that increases the excretion of water and electrolytes through the urine. It helps to reduce fluid overload and edema in clients with heart failure. The nurse should measure and record the client's intake and output and monitor the client's fluid and electrolyte status.

Correct Answer is ["5"]

Explanation

To calculate the volume of hydrochlorothiazide oral solution that the nurse should administer per dose, we can use the following steps:

Determine the total daily dose:

The total daily dose is 150 mg.

Divide the total daily dose into 3 equally divided doses:

150 mg ÷ 3 = 50 mg per dose

Calculate the volume to be administered per dose:

The available oral solution has a concentration of 50 mg/5 mL.

50 mg ÷ 50 mg/5 mL = 5 mL

Therefore, the nurse should administer 5 mL of hydrochlorothiazide oral solution per dose.

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Naxlex Comprehensive Predictor Exams

A patient hospitalized for heart failure exacerbation has been receiving 40 mg furosemide IV twice daily. What statement by the client would alert the nurse to a possible toxic effect of this medication?

Correct Answer is C

Explanation

Correct Answer is ["5"]

Explanation

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