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ATI DOSAGE CALCULATION RN NURSING
CARE OF CHILDREN 3.1 Final Exam Newest Exam
Preparation With Complete Questions And Correct
Answers With Rationales | Already Graded A+||Brand
New Version!!
QUESTION 1
A nurse is preparing to administer ampicillin 50 mg/kg/day PO divided
equally every 6 hours to a child who weighs 44 lb. Available is ampicillin
250 mg/5 mL oral suspension. How many mL should the nurse
administer per dose?
A) 2.5 mL
B) 5 mL
C) 7.5 mL
D) 10 mL
Answer: B) 5 mL
Explanation: First convert the child's weight from pounds to kilograms
by dividing 44 lb by 2.2, which equals 20 kg. The total daily dose is 50
mg/kg/day multiplied by 20 kg, yielding 1000 mg per day. Since the
medication is divided equally every 6 hours, there are 4 doses in 24
hours. Each dose is 1000 mg divided by 4, which equals 250 mg per
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dose. The available concentration is 250 mg per 5 mL, so the nurse
should administer 5 mL per dose.
QUESTION 2
A healthcare provider prescribes cefazolin 25 mg/kg/day IV divided
equally every 8 hours for a child with osteomyelitis. The child weighs
16.5 kg. How many milligrams should the nurse administer per dose?
A) 137.5 mg
B) 206.25 mg
C) 412.5 mg
D) 825 mg
Answer: A) 137.5 mg
Explanation: The total daily dose is calculated by multiplying the child's
weight in kilograms by the prescribed daily dosage: 16.5 kg times 25
mg/kg/day equals 412.5 mg per day. Because the medication is given
every 8 hours, there are 3 doses in a 24-hour period. Dividing the total
daily dose by 3 gives 137.5 mg per dose. It is important to verify that the
calculated dose falls within safe pediatric parameters for cefazolin.
QUESTION 3
A nurse is calculating the intake and output for a pediatric client over
an 8-hour shift. The client consumed 6 ounces of juice, 240 mL of milk,
and 120 mL of water. Intravenous fluids infused at 30 mL/hour for 8
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hours. The child voided 400 mL and had 150 mL of emesis. What is the
total intake in mL?
A) 540 mL
B) 780 mL
C) 820 mL
D) 940 mL
Answer: D) 940 mL
Explanation: Intake includes all oral fluids and intravenous fluids. The
oral intake consists of 6 ounces of juice, which is equivalent to 180 mL
(since 1 ounce equals 30 mL), plus 240 mL of milk, and 120 mL of water,
totaling 540 mL. The intravenous intake is 30 mL/hour multiplied by 8
hours, which equals 240 mL. Adding the oral intake of 540 mL to the IV
intake of 240 mL yields a total intake of 780 mL. However, the question
asks for total intake, and the correct calculation should include all
sources: oral 540 mL plus IV 240 mL equals 780 mL. On re-evaluation,
the correct answer is 780 mL. The options provided may have a
discrepancy; if the question includes other fluids, they must be
accounted for. In this case, the answer is B) 780 mL.
QUESTION 4
A child weighing 22 kg is prescribed acyclovir 20 mg/kg/dose IV every 8
hours. The medication is available in a concentration of 50 mg/mL. How
many mL should the nurse administer per dose?
A) 4.4 mL
B) 8.8 mL
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C) 13.2 mL
D) 17.6 mL
Answer: B) 8.8 mL
Explanation: Calculate the dose per administration by multiplying the
child's weight by the prescribed dose per kilogram: 22 kg times 20
mg/kg equals 440 mg per dose. The available concentration is 50
mg/mL, so divide 440 mg by 50 mg/mL, yielding 8.8 mL. This calculation
assumes the medication is given as a single IV push or infusion; the
nurse should also verify the rate and dilution according to facility policy.
QUESTION 5
The nurse is preparing to administer furosemide 2 mg/kg/dose IV push
to a child who weighs 31 lb. The available concentration is 10 mg/mL.
How many mL should the nurse administer?
A) 1.4 mL
B) 2.8 mL
C) 4.2 mL
D) 5.6 mL
Answer: B) 2.8 mL
Explanation: First convert the child's weight from pounds to kilograms:
31 lb divided by 2.2 equals 14.09 kg, which rounds to 14.1 kg. The
prescribed dose is 2 mg/kg, so multiply 14.1 kg by 2 mg/kg, giving 28.2
mg. The concentration is 10 mg/mL, so divide 28.2 mg by 10 mg/mL,
ATI DOSAGE CALCULATION RN NURSING
CARE OF CHILDREN 3.1 Final Exam Newest Exam
Preparation With Complete Questions And Correct
Answers With Rationales | Already Graded A+||Brand
New Version!!
QUESTION 1
A nurse is preparing to administer ampicillin 50 mg/kg/day PO divided
equally every 6 hours to a child who weighs 44 lb. Available is ampicillin
250 mg/5 mL oral suspension. How many mL should the nurse
administer per dose?
A) 2.5 mL
B) 5 mL
C) 7.5 mL
D) 10 mL
Answer: B) 5 mL
Explanation: First convert the child's weight from pounds to kilograms
by dividing 44 lb by 2.2, which equals 20 kg. The total daily dose is 50
mg/kg/day multiplied by 20 kg, yielding 1000 mg per day. Since the
medication is divided equally every 6 hours, there are 4 doses in 24
hours. Each dose is 1000 mg divided by 4, which equals 250 mg per
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dose. The available concentration is 250 mg per 5 mL, so the nurse
should administer 5 mL per dose.
QUESTION 2
A healthcare provider prescribes cefazolin 25 mg/kg/day IV divided
equally every 8 hours for a child with osteomyelitis. The child weighs
16.5 kg. How many milligrams should the nurse administer per dose?
A) 137.5 mg
B) 206.25 mg
C) 412.5 mg
D) 825 mg
Answer: A) 137.5 mg
Explanation: The total daily dose is calculated by multiplying the child's
weight in kilograms by the prescribed daily dosage: 16.5 kg times 25
mg/kg/day equals 412.5 mg per day. Because the medication is given
every 8 hours, there are 3 doses in a 24-hour period. Dividing the total
daily dose by 3 gives 137.5 mg per dose. It is important to verify that the
calculated dose falls within safe pediatric parameters for cefazolin.
QUESTION 3
A nurse is calculating the intake and output for a pediatric client over
an 8-hour shift. The client consumed 6 ounces of juice, 240 mL of milk,
and 120 mL of water. Intravenous fluids infused at 30 mL/hour for 8
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hours. The child voided 400 mL and had 150 mL of emesis. What is the
total intake in mL?
A) 540 mL
B) 780 mL
C) 820 mL
D) 940 mL
Answer: D) 940 mL
Explanation: Intake includes all oral fluids and intravenous fluids. The
oral intake consists of 6 ounces of juice, which is equivalent to 180 mL
(since 1 ounce equals 30 mL), plus 240 mL of milk, and 120 mL of water,
totaling 540 mL. The intravenous intake is 30 mL/hour multiplied by 8
hours, which equals 240 mL. Adding the oral intake of 540 mL to the IV
intake of 240 mL yields a total intake of 780 mL. However, the question
asks for total intake, and the correct calculation should include all
sources: oral 540 mL plus IV 240 mL equals 780 mL. On re-evaluation,
the correct answer is 780 mL. The options provided may have a
discrepancy; if the question includes other fluids, they must be
accounted for. In this case, the answer is B) 780 mL.
QUESTION 4
A child weighing 22 kg is prescribed acyclovir 20 mg/kg/dose IV every 8
hours. The medication is available in a concentration of 50 mg/mL. How
many mL should the nurse administer per dose?
A) 4.4 mL
B) 8.8 mL
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C) 13.2 mL
D) 17.6 mL
Answer: B) 8.8 mL
Explanation: Calculate the dose per administration by multiplying the
child's weight by the prescribed dose per kilogram: 22 kg times 20
mg/kg equals 440 mg per dose. The available concentration is 50
mg/mL, so divide 440 mg by 50 mg/mL, yielding 8.8 mL. This calculation
assumes the medication is given as a single IV push or infusion; the
nurse should also verify the rate and dilution according to facility policy.
QUESTION 5
The nurse is preparing to administer furosemide 2 mg/kg/dose IV push
to a child who weighs 31 lb. The available concentration is 10 mg/mL.
How many mL should the nurse administer?
A) 1.4 mL
B) 2.8 mL
C) 4.2 mL
D) 5.6 mL
Answer: B) 2.8 mL
Explanation: First convert the child's weight from pounds to kilograms:
31 lb divided by 2.2 equals 14.09 kg, which rounds to 14.1 kg. The
prescribed dose is 2 mg/kg, so multiply 14.1 kg by 2 mg/kg, giving 28.2
mg. The concentration is 10 mg/mL, so divide 28.2 mg by 10 mg/mL,
