A nurse is preparing to administer voriconazole 6 mg/kg via intermittent IV bolus to a client who weighs 127 lb. Available is voriconazole 5 mg/mL. How many mL should the nurse administer?
(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["69"]
To calculate the amount of voriconazole to be administered, we can follow these steps:
Convert the client's weight from pounds to kilograms.
Calculate the total amount of voriconazole needed based on the client's weight.
Determine the volume of the medication to be administered based on the concentration of the available solution.
Let's proceed with the calculations:
Converting the client's weight from pounds to kilograms:
Client's weight = 127 lb
1 lb ≈ 0.453592 kg
Client's weight ≈ 127 lb 0.453592 kg/lb ≈ 57.61 kg
Calculating the total amount of voriconazole needed:
Voriconazole dose = 6 mg/kg 57.61 kg ≈ 345.66 mg
Determining the volume of the medication to be administered:
Available voriconazole concentration = 5 mg/mL
Volume to be administered = 345.66 mg / 5 mg/mL ≈ 69.132 mL
Rounding to the nearest whole number, the nurse should administer 69 mL of voriconazole.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2.1"]
Explanation
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.
Correct Answer is C
Explanation
Choice A reason: This is incorrect. INR level is a measure of blood clotting time and is not directly affected by digoxin. It is more relevant for patients who are taking anticoagulants, such as warfarin.
Choice B reason: This is incorrect. Temperature is not a priority assessment for a patient receiving digoxin. It may indicate an infection or inflammation, but it is not related to the action or toxicity of digoxin.
Choice C reason: This is correct. Apical heart rate is the priority assessment for a patient receiving digoxin. Digoxin is a cardiac glycoside that increases the force and efficiency of the heart contractions, but also slows down the heart rate. The nurse should monitor the apical pulse for one full minute before administering digoxin and withhold the dose if the pulse is below 60 beats per minute for adults or below the age-specific normal range for children. A low or irregular pulse may indicate digoxin toxicity, which can be life-threatening.
Choice D reason: This is incorrect. Blood pressure is not a priority assessment for a patient receiving digoxin. Digoxin does not have a direct effect on blood pressure, although it may improve the cardiac output and reduce the fluid retention in patients with heart failure. Blood pressure should be monitored regularly, but it is not as critical as the apical heart rate.
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