A nurse is preparing to administer belimumab 10 mg/kg via intermittent IV bolus to a client who weighs 136 lb. Available is belimumab 80 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 ["8"]
To calculate the amount of belimumab that the nurse should administer, we can use the following steps:
Convert the patient's weight from pounds to kilograms.
Multiply the patient's weight in kilograms by the dosage of belimumab (10 mg/kg) to find the total dosage required.
Determine the volume of the drug needed using the concentration of the available belimumab solution.
Given:
Patient's weight = 136 lb
Dosage of belimumab = 10 mg/kg
Available concentration of belimumab = 80 mg/mL
Let's calculate step by step:
Convert patient's weight from pounds to kilograms:
Patient's weight in kg = 136 lb × (1 kg / 2.2 lb) ≈ 61.8 kg
Calculate the total dosage required:
Total dosage = 10 mg/kg × 61.8 kg ≈ 618 mg
Determine the volume of the drug needed using the concentration of the available belimumab solution:
Volume of drug = Total dosage / Concentration of belimumab
Volume of drug = 618 mg / 80 mg/mL ≈ 7.7 mL
Rounding to the nearest whole number, the nurse should administer 8 mL of the belimumab.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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 B
Explanation
This choice is correct because it is the result of dividing the ordered dose (0.25 mg) by the strength of the tablet (250 mcg or 0.25 mg). The formula for calculating the number of tablets to be given is:
Tablets = Dose/ Strength
Therefore, the number of tablets to be given is:
Tablets = 0.25 mg/250 mcg = 0.25 mg/0.25 mg = 1
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