A nurse is preparing to administer erythromycin 50 mg/kg/day in divided doses every 6 hr to an adolescent who is postoperative following surgical removal of a peritonsillar abscess and weighs 40 kg. Available is erythromycin oral solution 200 mg/5 mL. How many mL should the nurse administer with each dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["12.5"]
Dose required per day = 50mg/kg/day × 40 kg = 2000 mg/day
Dose per administration = 2000mg4 doses = 500 mg/dose
Volume to administer:
200mg5ml=40mg/ml
500mg40mg/ml=12.5ml/dose
Correct answer =12.5mL/dose
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. "I will take my child's rectal temperature daily.": Taking a rectal temperature in a child receiving chemotherapy is not recommended because it increases the risk of rectal injury and infection. An oral or axillary temperature is preferred.
B. "I will make sure to inspect my child's mouth every day for sores." Chemotherapy suppresses the immune system, leaving the child vulnerable to infections such as mucositis. Inspecting the mouth daily is crucial to detect any sores or signs of infection early and prevent complications.
C. "I will make sure my child gets their MMR vaccine this week.": Live vaccines like the MMR (measles, mumps, rubella) vaccine should not be given during chemotherapy or other forms of immunosuppressive treatment.
D. "I will ensure my child exercises a little each day by riding their bicycle.": Exercise may be limited during chemotherapy due to fatigue and increased susceptibility to infection. Physical activity should be tailored to the child's ability and energy level, not mandated.
Correct Answer is B
Explanation
A. Urine output of 50 mL in 2 hr: This is within normal limits for a child and does not indicate an immediate concern.
B. Lethargy: Lethargy is a potential sign of increased intracranial pressure (ICP), which is a critical complication of VP shunt placement and requires immediate intervention.
C. Respiratory rate 24/min: This is within the normal range for a 4-year-old child.
D. Absent Babinski reflex: This is a normal finding in children over 2 years old, as the reflex typically disappears by that age.
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