ATI Dosage Calculations RN Fundamentals Proctored Assessment Final Exam

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Sample questions from ATI Dosage Calculations RN Fundamentals Proctored Assessment Final Exam

This material has 90 questions with answers and rationales. Here are the first 5.

1. 1.The provider prescribes acetaminophen 650 mg PO. Available tablets contain 325 mg each. How many tablets should the nurse administer?

   • A.1 tablet
   • B.1.5 tablets
   • C.2 tablets
   • D.3 tablets

   Rationale: The calculation is 650 mg / 325 mg per tablet = 2 tablets. One tablet and 1.5 tablets provide less than the prescribed dose, while 3 tablets provide 975 mg. Divide the prescribed dose by the dose available per tablet.

2. 2.A client is prescribed amoxicillin 375 mg PO. The suspension contains 250 mg per 5 mL. How many milliliters should the nurse administer?

   • A.5 mL
   • B.7.5 mL
   • C.10 mL
   • D.12.5 mL

   Rationale: Set up 375 mg / 250 mg x 5 mL = 7.5 mL. Five milliliters supplies only 250 mg, while 10 mL and 12.5 mL exceed the prescribed dose. Use the concentration on the label rather than treating the milligrams as milliliters.

3. 3.The prescription is for digoxin 0.125 mg PO. The tablets are labeled 250 mcg each. How many tablets should the nurse administer?

   • A.0.25 tablet
   • B.0.5 tablet
   • C.1 tablet
   • D.2 tablets

   Rationale: Convert 0.125 mg to 125 mcg; 125 mcg / 250 mcg per tablet = 0.5 tablet. One-quarter tablet provides 62.5 mcg, and one or two tablets provide 250 or 500 mcg. Convert units before calculating.

4. 4.The provider prescribes levothyroxine 0.075 mg PO. The available tablets are 25 mcg each. How many tablets should the nurse administer?

   • A.1 tablet
   • B.2 tablets
   • C.3 tablets
   • D.4 tablets

   Answer and rationale are in the full material.

5. 5.A medication is prescribed at 0.4 g PO. The tablets contain 200 mg each. How many tablets should the nurse administer?

   • A.1 tablet
   • B.2 tablets
   • C.4 tablets
   • D.5 tablets

   Answer and rationale are in the full material.