The recommended dosage of phenytoin for a child is 7 mg/kg/24 h given q h. The child's weight is 55 lb. The medication is supplied in 125 mg/5 mL. How many milliliters will be administered for each dose? . .
The Correct Answer is ["3.5"]
Step 1: Convert pounds to kilograms. 55 lb ÷ (2.2 lb/1 kg) = 25 kg.
Step 2: Calculate the total milligrams per 24 hours. 7 mg/kg/24 h × 25 kg = 175 mg/24 h.
Step 3: Calculate the milligrams per dose (q h implies 2 doses per 24 hours). 175 mg/24 h ÷ 2 doses = 87.5 mg/dose.
Step 4: Calculate the volume in milliliters per dose. 87.5 mg ÷ (125 mg/5 mL) = 3.5 mL. 3.5 mL will be administered for each dose.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
While queries regarding etiology eventually arise, the immediate emotional response of parents to the sudden and unexpected death of an infant from SIDS is often profound shock and a strong sense of personal culpability. The search for a "reason why" typically follows the initial surge of intense emotional distress and self-blame.
Choice B rationale
Acceptance is a much later stage in the grief process and is rarely the initial reaction to a traumatic loss like SIDS. The suddenness and unexplained nature of SIDS often lead to prolonged denial, disbelief, and a struggle to comprehend the event before any form of acceptance can begin to manifest.
Choice C rationale
Feelings of blame or guilt are almost universally the initial and most intense reactions experienced by parents following an infant's death from SIDS. The unexplained nature of the death often leads parents to scrutinize their actions, believing they somehow failed to protect their child, even when no identifiable cause is found.
Choice D rationale
Requests for an infant's belongings may occur at various points during the grieving process, representing a desire to hold onto memories or tangible connections. However, this is not typically the very first reaction, which is dominated by overwhelming emotional shock, grief, and often profound self-blame and guilt.
Correct Answer is ["3.5"]
Explanation
Step 1: Convert pounds to kilograms. 55 lb ÷ (2.2 lb/1 kg) = 25 kg.
Step 2: Calculate the total milligrams per 24 hours. 7 mg/kg/24 h × 25 kg = 175 mg/24 h.
Step 3: Calculate the milligrams per dose (q h implies 2 doses per 24 hours). 175 mg/24 h ÷ 2 doses = 87.5 mg/dose.
Step 4: Calculate the volume in milliliters per dose. 87.5 mg ÷ (125 mg/5 mL) = 3.5 mL. 3.5 mL will be administered for each dose.
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