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
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. "I will set the temperature of the hot water heater to 140 degrees." The hot water heater should be set to 120°F (49°C) or lower to prevent scald injuries. A setting of 140°F significantly increases the risk of burns.
B. "I will turn pot handles towards the front of the stove when cooking." Pot handles should be turned toward the back of the stove to prevent a child from grabbing or knocking them over.
C. "I don't need to apply sunscreen to my child if he is outside after 3 p.m." Sunscreen is essential any time a child is outdoors during daylight, regardless of the time, to protect against harmful UV rays.
D. "I will plug protective guards into my electrical outlets." Installing protective guards helps prevent electrical burns by stopping toddlers from inserting objects into outlets.
Correct Answer is ["A","B","C"]
Explanation
A. "I should eat extra food on busy days when I am more active." Physical activity lowers blood glucose levels. Eating extra food prevents hypoglycemia during periods of increased activity.
B. "I should increase my intake of sugar-free fluids when I am sick." During illness, maintaining hydration is essential. Sugar-free fluids help prevent dehydration without causing hyperglycemia.
C. "I should eat a snack 30 minutes before my baseball game starts." A pre-activity snack helps maintain blood glucose levels during exercise, reducing the risk of hypoglycemia.
D. "I should wait 2 hours after eating before playing with my friends." There is no need to delay physical activity for 2 hours after eating unless instructed otherwise by a healthcare provider.
E. "I should have a 16-ounce glass of milk if I start feeling weak or shaky." A smaller portion of fast-acting carbohydrates, like 4 ounces of juice or 15 grams of glucose tablets, is recommended for treating hypoglycemia.
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