The nurse prepares to administer promethazine 35 mg intramuscularly prescribed as needed for a client with cholecystitis who has severe nausea. The ampule label reads that the medication is available in 25 mg/mL. How many milliliters should the nurse administer?
Record your answer using one decimal place.
1
1.4
1.5
0.7
The Correct Answer is B
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale: These side effects are not related to spironolactone use.
Choice B rationale: These are common side effects of spironolactone, as it causes potassium retention and sodium loss.
Choice C rationale: These side effects are not related to spironolactone use.
Choice D rationale: These side effects are not related to spironolactone use.
Correct Answer is {"dropdown-group-1":"B","dropdown-group-2":"D"}
Explanation
Choice A rationale: The lab results and clinical picture, such as weight loss, anorexia, and high blood glucose levels, point more toward a hyperglycemic state rather than severe hypoglycemia.
Choice B rationale: The client's elevated blood glucose levels, weight loss, and anorexia suggest a hyperglycemic state, possibly hyperosmolar hyperglycemic state, which requires fluid management and insulin to address the severe dehydration and high blood glucose levels.
Choice C rationale: Although high glucose levels are evident, the absence of significant acidosis (as seen in diabetic ketoacidosis) and extreme ketosis makes this diagnosis less likely.
Choice D rationale: The lab values and clinical presentation do not strongly align with a primary respiratory acidosis diagnosis, which typically involves changes in pH and carbon dioxide levels.
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