A nurse is caring for a preschooler who has heart failure and a new prescription for furosemide 4 mg/kg every 8 hr. The child weighs 16 kg (35 lb). Available is furosemide oral solution 40 mg/5 mL. How many mL should the nurse administer with each dose? (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"]
Calculation:
- Calculate the desired dose in milligrams (mg) per administration.
Desired dose (mg) = 4 mg/kg × 16 kg
= 64 mg.
Available concentration of the medication = 40 mg/5 mL.
- Calculate the volume in milliliters (mL) to administer per dose.
Volume (mL) = Desired dose (mg) / (Available concentration (mg) / Available volume (mL))
= 64 mg / (40 mg / 5 mL)
= 8 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D"]
Explanation
A. "There is nothing we can do to minimize overgrowth of their gum tissue.": Incorrect. Gingival hyperplasia is a known side effect of phenytoin, but good oral hygiene and regular dental care can help minimize its severity.
B. "They will need to take 400 IU of vitamin E while on this medication.": Incorrect. Routine vitamin E supplementation is not standard or necessary with phenytoin unless specifically indicated by a provider.
C. "We will need to periodically have their blood drawn to check phenytoin levels.": Correct. Phenytoin has a narrow therapeutic index, so serum drug levels must be monitored regularly to avoid toxicity or subtherapeutic dosing.
D. "This medication may cause their eyes to, at times, move quickly back and forth.": Correct. Nystagmus is a known dose-related side effect of phenytoin, especially at higher levels.
E. "This drug won't decrease the effectiveness of their oral contraceptive medication.": Incorrect. Phenytoin is a hepatic enzyme inducer and can reduce the effectiveness of hormonal contraceptives, so alternate or additional contraceptive methods should be recommended.
Correct Answer is C
Explanation
A. Show the child's parent how to release tension on the bars: The tension on the halo vest is adjusted by the healthcare provider, not by the parent. The nurse should not instruct the parent to release tension, as improper adjustments can lead to complications.
B. Remove the vest for the child to sleep at night: The halo vest should remain in place at all times, including during sleep, to maintain proper cervical traction and stabilization. Removing it may interfere with the healing process and cause further injury.
C. Check the child's pupillary response: Monitoring the pupillary response is important in a child with cervical traction to assess for any neurological changes. It helps identify signs of increased intracranial pressure or other neurological complications.
D. Apply a cervical collar if the child reports neck pain: The halo vest itself is designed to stabilize the neck, and the application of a cervical collar without provider guidance could interfere with the proper use of the traction system.
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