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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. An upper respiratory infection 2 days ago is not a contraindication for the MMR vaccine. The vaccine can be administered once the child has recovered from the acute illness.
B. Correct. An allergy to neomycin, which is an antibiotic, is a contraindication for
receiving the MMR vaccine. Neomycin is present in trace amounts in the MMR vaccine, and individuals with a severe allergy to this antibiotic should not receive the vaccine.
C. A temperature of 37.2° C (99° F) is a low-grade fever and is not a contraindication for the MMR vaccine. Mild illness without fever is not a contraindication.
D. A family history of seizures is not a contraindication for the MMR vaccine. The vaccine can be safely administered to children with a family history of seizures.
Correct Answer is D
Explanation
A. Oliguria (decreased urine output) is not typically associated with hypokalemia. It can be a symptom of other electrolyte imbalances or kidney dysfunction.
B. Hypertension (high blood pressure) is not a typical finding in a child with hypokalemia. Low potassium levels are more likely to be associated with cardiac dysrhythmias and hypotension.
C. Hyperactive bowel sounds are not directly related to hypokalemia. They can occur in various gastrointestinal conditions, but they are not a specific indicator of potassium
levels.
D. This is the correct answer. Hypokalemia (low potassium levels) can lead to decreased neuromuscular excitability, which can result in hyporeflexia (reduced reflexes). This is an important neurological sign associated with low potassium levels.
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