HESI RN
WGU HESI Med Surg Questions
Extract:
Question 1 of 5
A child with a seizure disorder receives a prescription for phenytoin 20 mg by mouth every 8 hours. The suspension is available in 125 mg/5 mL. How many mL should the nurse administer?(Enter the numerical value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 0.8
Rationale:
To find the answer, we can use the following formula: (mL to be administered) = (mg prescribed) / (mg per mL). Substituting the given values, we get: (mL to be administered) = (20) / (125 / 5). Simplifying, we get: (mL to be administered) = (20) x (5 / 125). (mL to be administered) = 0.8.
Therefore, the nurse should administer 0.8 mL of phenytoin suspension to the child.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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