ATI Dosage Calculations Proctored Assessment Final

Free preview · Original latest version

Sample questions from ATI Dosage Calculations Proctored Assessment Final

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

1. 1.A client is prescribed amoxicillin 0.75 g PO. Available are 250 mg capsules. How many capsules should the nurse administer?

   • A.2 capsules
   • B.3 capsules
   • C.4 capsules
   • D.0.3 capsule

   Rationale: Convert 0.75 g to 750 mg, then divide by 250 mg per capsule to obtain 3 capsules. Two capsules provide only 500 mg, and 4 provide 1,000 mg. The 0.3-capsule choice results from reversing the dose calculation; always use the same units in the dose and supply.

2. 2.A liquid medication is labeled 125 mg/5 mL. The prescription is 250 mg PO. How many milliliters should the nurse administer?

   • A.5 mL
   • B.10 mL
   • C.12.5 mL
   • D.2.5 mL

   Rationale: The concentration is 25 mg/mL, so 250 mg requires 10 mL. Five milliliters supplies only 125 mg, while 12.5 mL supplies 312.5 mg and 2.5 mL supplies 62.5 mg. Calculate the volume from the labeled concentration rather than treating the labeled 5 mL as the required dose.

3. 3.A client is prescribed 1.2 g of a medication. Tablets contain 600 mg each. How many tablets should the nurse administer?

   • A.0.5 tablet
   • B.1 tablet
   • C.2 tablets
   • D.4 tablets

   Rationale: Convert 1.2 g to 1,200 mg and divide by 600 mg per tablet, giving 2 tablets. One tablet provides half the prescribed amount, and 4 tablets provide twice the amount. The 0.5-tablet choice reflects dividing the available dose by the prescribed dose instead of the reverse.

4. 4.The prescription is for 0.08 mg of a medication. How many micrograms is this?

   • A.8 mcg
   • B.80 mcg
   • C.800 mcg
   • D.0.8 mcg

   Answer and rationale are in the full material.

5. 5.A client weighs 154 lb. What is the client's weight in kilograms, rounded to the nearest tenth? Use 1 kg = 2.2 lb.

   • A.70.0 kg
   • B.72.4 kg
   • C.68.0 kg
   • D.338.8 kg

   Answer and rationale are in the full material.