A patient experiences a gasoline tank fire when riding a motorcycle and is admitted to the emergency department (ED. with partial-thickness burns on the anterior surfaces of both lower extremities. Which percentage of body surface area should the nurse document in the electronic medical record (EMR)?
18%.
45%.
9%.
36%.
The Correct Answer is A
Choice A reason: This is the correct answer. According to the rule of nines, each leg accounts for 18% of the total body surface area, and the anterior surface of each leg accounts for half of that, or 9%. Therefore, the patient has partial-thickness burns on 9% + 9% = 18% of the body surface area.
Choice B reason: This is incorrect. This would be the case if the patient had partial-thickness burns on the anterior and posterior surfaces of both legs, as well as the head and neck, which is not given in the question.
Choice C reason: This is incorrect. This would be the case if the patient had partial-thickness burns on the anterior surface of only one leg, which is not given in the question.
Choice D reason: This is incorrect. This would be the case if the patient had partial-thickness burns on the anterior and posterior surfaces of both legs, which is not given in the question.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A: Administering a half dose now is not advisable, because it may result in underdosing or overdosing of digoxin. Digoxin has a narrow therapeutic range and a high risk of toxicity, especially in infants and children. The amount of digoxin absorbed by the infant before vomiting is unknown, so giving a partial dose may not achieve therapeutic levels or may exceed safe levels.
Choice B: Giving another dose is not advisable, because it may result in overdosing of digoxin. Digoxin has a narrow therapeutic range and a high risk of toxicity, especially in infants and children. The amount of digoxin absorbed by the infant before vomiting is unknown, so giving a full dose may exceed safe levels and cause adverse effects such as nausea, vomiting, bradycardia, arrhythmias, or visual disturbances.
Choice C: Mixing the next dose with food is not advisable, because it may affect the absorption and bioavailability of digoxin. Digoxin should be taken on an empty stomach or at least one hour before or two hours after meals, because food can interfere with its absorption from the gastrointestinal tract and reduce its effectiveness.
Choice D:Withholding the dose is the safest option. If vomiting occurs within 30 minutes of administration, it’s generally advised to skip that dose to avoid the risk of overdose.The next dose should be given as scheduled Digoxin has a long half-life and accumulates in tissues, so missing one dose will not significantly affect its therapeutic effect. Withholding this dose will avoid overdosing and toxicity of digoxin, which can be life-threatening in infants and children. The nurse should also advise the mother to resume the regular dosing schedule and monitor the infant's pulse rate and signs of digoxin toxicity.
Correct Answer is C
Explanation
Choice C is correct because repositioning the infant every 2 hours can help expose different parts of the skin to the phototherapy light and increase the effectiveness of the treatment. The nurse should also check the skin for signs of irritation or burns.
Choice A is incorrect because feeding the infant every 4 hours is not specific to home phototherapy. The infant may need more frequent feedings depending on their hunger cues and weight gain.
Choice B is incorrect because performing diaper changes under the light is not necessary and may expose the infant's genitals to excessive light and heat. The nurse should advise the parents to cover the infant's eyes and genitals with protective shields during phototherapy.
Choice D is incorrect because covering the infant with a receiving blanket can reduce the exposure of the skin to the phototherapy light and decrease the effectiveness of the treatment. The nurse should advise the parents to keep the infant unclothed or only in a diaper during phototherapy.
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