Amoxicillin trihydrate 300 mg oral (PO) has been prescribed for a client with an oral infection. The medication is available in a liquid suspension that is available as 250 mg/5 mL. How many milliliters should the nurse administer?
Record your answer using a whole number.
6
4
1.2
5
The Correct Answer is A
Choice A rationale: This is the correct answer. It corresponds to 300 mg of the drug ((300x 5)/250).
Choice B rationale: This is incorrect because it is too low. It is the amount of milliliters that corresponds to 200 mg of amoxicillin trihydrate, which is less than the prescribed dose of 300 mg.
Choice C rationale: This is incorrect because it is too low. It is the amount of milliliters that corresponds to 60 mg of amoxicillin trihydrate, which is not enough to treat an oral infection.
Choice D rationale: This is incorrect because it is too low. It is the amount of milliliters that corresponds to 250 mg of amoxicillin trihydrate, which is less than the prescribed dose of 300 mg.
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Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale: Typically associated with potassium depletion rather than elevated levels.
Choice B rationale: Furosemide, a loop diuretic, can cause potassium depletion leading to hypokalemia, but it might also cause transient elevations in potassium levels initially. Choice C rationale: Addison disease can cause hyperkalemia, or high potassium, due to decreased renal excretion of potassium and increased retention of sodium and water.
Choice D rationale: Cushing disease can cause hypokalemia, or low potassium, due to increased renal excretion of potassium and decreased reabsorption of sodium and water.
Correct Answer is B
Explanation
Choice A rationale: this corresponds with 25 mg which is lower than the prescribed amount.
Choice B rationale: To answer this question, we need to use the formula: volume (mL) = dose (mg) / concentration (mg/mL). We plug in the given values: volume (mL) = 35 mg / 25 mg/mL. We simplify the fraction: volume (mL) = 7/5. We convert the fraction to a
decimal: volume (mL) = 1.4. Therefore, the nurse should administer 1.4 mL of promethazine.
Choice C rationale: this corresponds with 37.5 mg which is too high.
Choice D rationale: this corresponds with 17.5 mg which is too low.
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