A nurse is preparing to administer ondansetron 0.15 mg/kg IV to a child who is receiving chemotherapy and weighs 29.4 kg. Available is ondansetron 4 mg/2 mL solution. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2.2"]
To calculate the dose of ondansetron for a child who is receiving chemotherapy, the nurse needs to use the following formula:
Dose (mL) = (Dose ordered in mg / Dose available in mg) x Volume available in mL
In this case, the dose ordered in mg is 0.15 mg/kg x 29.4 kg, which equals 4.41 mg. The dose available in mg is 4 mg, and the volume available in mL is 2 mL. Therefore, the dose in mL is:
Dose (mL) = (4.41 mg / 4 mg) x 2 mL Dose (mL) = 2.205 mL
The nurse should round the answer to the nearest tenth, so the final answer is 2.2 mL. The nurse should administer 2.2 mL of ondansetron IV to the child who is receiving chemotherapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. This statement demonstrates an understanding of a helpful strategy for managing encopresis. Having the child try to defecate 15 minutes after each meal can take advantage of the body's natural reflexes and increase the likelihood of regular bowel movements.
B. Limiting fluid intake is not a recommended strategy for managing encopresis.
Maintaining proper hydration is important for overall health.
C. Having the child sit on the toilet for extended periods of time may lead to frustration and aversion to toilet training. It is not a recommended approach.
D. Increasing dairy intake is not a specific strategy for managing encopresis. In fact, some dairy products can contribute to constipation in some individuals. A balanced diet with an appropriate amount of fiber is important for bowel regularity.
Correct Answer is D
Explanation
A. Negative doll's eye reflex (also known as oculocephalic reflex) is a normal finding in infants. It is a reflexive movement of the eyes in the opposite direction of the head
movement.
B. A sunken anterior fontanel can indicate dehydration, which is a concern. However, in a 2-month-old with heart failure, a high heart rate (tachycardia) may indicate worsening of the heart failure and needs to be addressed promptly.
C. A potassium level of 5.1 mEq/L is within the normal range for infants. While electrolyte balance is important, it is not the priority in this situation.
D. This is the correct answer. A heart rate of 162/min in a 2-month-old infant with heart failure is elevated and requires immediate attention. It may indicate worsening heart
failure or an adverse reaction to the medication (furosemide) being administered. The nurse should assess the infant's condition, notify the healthcare provider, and intervene as necessary.
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