Oral liquid dosage practice problems

Tablet Dosage · 10 problems

Work each problem on paper first, rounding as the question says. Then open the answer to check it and see every step.

For study and exam practice, not for patient care. The orders in these problems are written for practice. In the clinic, follow the prescriber's order, your facility's protocols, and your pharmacy.

1. Problem 1

   Order: furosemide 75 mg PO once. Available: furosemide oral solution 40 mg/5 mL. How many mL should the nurse administer? Record your answer using 1 decimal place.

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   Answer: 9.4 mL

   1. mL = desired ÷ have × vehicle.
   2. 75 mg ÷ 40 mg × 5 mL = 9.375 mL.
   3. A volume of 1 mL or more is rounded to the nearest tenth: 9.4 mL.

2. Problem 2

   A client with fluid overload from heart failure is prescribed oral furosemide to reduce edema. The prescription reads: Order: furosemide 75 mg PO once. Available: furosemide oral solution 10 mg/mL. How many mL should the nurse administer? Record your answer using 1 decimal place.

   Show answer and steps

   Answer: 7.5 mL

   1. mL = desired ÷ have × vehicle.
   2. 75 mg ÷ 10 mg × 1 mL = 7.5 mL.
   3. 7.5 mL is exact, so no rounding is needed.

3. Problem 3

   The nurse is caring for a client who has a prescription for hydroxyzine 25 mg PO. The nurse has hydroxyzine oral solution 10 mg/5 mL available. How many mL should the nurse administer? Record your answer using 1 decimal place.

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   Answer: 12.5 mL

   1. mL = desired ÷ have × vehicle.
   2. 25 mg ÷ 10 mg × 5 mL = 12.5 mL.
   3. 12.5 mL is exact, so no rounding is needed.

4. Problem 4

   A client with fluid overload from heart failure is receiving diuretic therapy. The prescription reads: furosemide 30 mg PO once. The pharmacy has furosemide oral solution 10 mg/mL available. How many mL should the nurse administer? Record your answer using a whole number.

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   Answer: 3 mL

   1. mL = desired ÷ have × vehicle.
   2. 30 mg ÷ 10 mg × 1 mL = 3 mL.
   3. 3 mL is exact, so no rounding is needed.

5. Problem 5

   The nurse is caring for a client who has a prescription for furosemide 50 mg PO once. The nurse has furosemide oral solution 10 mg/mL available. How many mL should the nurse administer? Record your answer using a whole number.

   Show answer and steps

   Answer: 5 mL

   1. mL = desired ÷ have × vehicle.
   2. 50 mg ÷ 10 mg × 1 mL = 5 mL.
   3. 5 mL is exact, so no rounding is needed.

6. Problem 6

   The nurse is caring for a client who has a prescription for furosemide 40 mg PO every 12 hours. The nurse has furosemide oral solution 40 mg/5 mL available. How many mL should the nurse administer? Record your answer using a whole number.

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   Answer: 5 mL

   1. mL = desired ÷ have × vehicle.
   2. 40 mg ÷ 40 mg × 5 mL = 5 mL.
   3. 5 mL is exact, so no rounding is needed.

7. Problem 7

   Order: furosemide 25 mg PO once. Available: furosemide oral solution 10 mg/mL. How many mL should the nurse administer? Record your answer using 1 decimal place.

   Show answer and steps

   Answer: 2.5 mL

   1. mL = desired ÷ have × vehicle.
   2. 25 mg ÷ 10 mg × 1 mL = 2.5 mL.
   3. 2.5 mL is exact, so no rounding is needed.

8. Problem 8

   Order: furosemide 50 mg PO once. Available: furosemide oral solution 40 mg/5 mL. How many mL should the nurse administer? Record your answer using 1 decimal place.

   Show answer and steps

   Answer: 6.3 mL

   1. mL = desired ÷ have × vehicle.
   2. 50 mg ÷ 40 mg × 5 mL = 6.25 mL.
   3. A volume of 1 mL or more is rounded to the nearest tenth: 6.3 mL.

9. Problem 9

   The nurse is caring for a client who has a prescription for furosemide 40 mg PO every 12 hours. The nurse has furosemide oral solution 10 mg/mL available. How many mL should the nurse administer? Record your answer using a whole number.

   Show answer and steps

   Answer: 4 mL

   1. mL = desired ÷ have × vehicle.
   2. 40 mg ÷ 10 mg × 1 mL = 4 mL.
   3. 4 mL is exact, so no rounding is needed.

10. Problem 10

    The nurse is caring for a client who has a prescription for furosemide 20 mg PO once. The nurse has furosemide oral solution 40 mg/5 mL available. How many mL should the nurse administer? Record your answer using 1 decimal place.

    Show answer and steps

    Answer: 2.5 mL

    1. mL = desired ÷ have × vehicle.
    2. 20 mg ÷ 40 mg × 5 mL = 2.5 mL.
    3. 2.5 mL is exact, so no rounding is needed.

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