1 cup is equal to how many milliliters (mL)?
2400
240
60
420
The Correct Answer is B
A. 2400.: One cup does not equal 2400 mL; this value is ten times greater than the correct conversion and would represent approximately 10 cups. Using this conversion could result in severe overdosage when measuring liquid medications.
B. 240.: One standard cup equals 240 milliliters, which is the correct conversion used in medication dosage and nutritional calculations. This measurement is commonly applied when converting household measurements to metric values for accuracy in clinical settings.
C. 60.: Sixty milliliters equal only ¼ cup, which significantly underestimates the correct conversion. Using this value could result in administering insufficient fluid or medication volume.
D. 420.: Four hundred twenty milliliters is closer to 1¾ cups, which overestimates the true volume of one cup. Such an error could lead to inaccurate fluid balance or medication dosing.
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Related Questions
Correct Answer is D
Explanation
A. Demerol (meperidine HCL) 50 mg, IM, prior to surgery.: This order specifies administration before surgery, which serves as its clear endpoint. It is a single preoperative dose and therefore has a defined termination point.
B. Mevacor (lovastatin) 10 mg, po, every 12 hours for 7 days.: The inclusion of “for 7 days” provides a definite duration, meaning the order will automatically terminate after the specified treatment period ends.
C. Lasix (furosemide) 40 mg, IV, STAT.: A STAT order is intended for immediate, one-time administration, so it has an inherent termination after that single dose is given.
D. Motrin (ibuprofen) 400 mg, po, daily.: This order does not specify a stop date or duration of therapy, meaning it would continue indefinitely until changed or discontinued by the provider. It is therefore written without a termination.
Correct Answer is B
Explanation
A. Giving the medication in the morning.: Administering extended-release medication in the morning is generally acceptable unless otherwise specified. The timing depends on the drug’s purpose and effect duration, but morning administration does not interfere with the medication’s release mechanism.
B. Crushing the tablet and mixing with applesauce.: Extended-release tablets are designed to release medication gradually over time. Crushing or breaking them destroys the controlled-release coating, causing the entire dose to be absorbed rapidly, which increases the risk of toxicity and adverse effects.
C. Giving the medication with their other scheduled medications.: Extended-release tablets can usually be given alongside other prescribed medications unless there are known drug interactions. This practice does not affect the tablet’s slow-release mechanism or absorption profile.
D. Administering the tablet with water.: Taking an extended-release tablet with water is appropriate and ensures adequate swallowing and absorption. Water does not interfere with the extended-release properties of the medication.
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