ATI: SAMPLE MATH QUESTIONS Dosage Calculation Dimensional Analysis: Safe Dosage Test

1. A nurse is transcribing mediation prescriptions for a group of clients. Which of the following is the appropriate way for the nurse to record medication that require the use of a decimal point? .4 ml 0.6ml 8.0ml 125.0mL Rationale: Decimal on other may be mistaken for larger quantity. 2. A nurse is caring for a client who has prescription for meperidine (Demerol) 50mg PO every 3 hr PRN for moderate pain, and meperidine 75mg PO every 3 hr PRN for severe pain. At 1200, the client reports back pain rated as 8 on a pain scale of 0 to 10. The client received 75mg PO at 0700 and 50mg PO at 1000. Which of the following actions should the nurse plan to take? Administer meperidine 50mg now. Administer meperidine 50mg at 1300. Administer meperidine 75mg now. Administer meperidine 75mg at 1300. Rationale: Last dose was 5 hours ago 3. A nurse is reviewing a client’s prescriptions. The nurse should contact the provider to clarify which of the following prescriptions? Ampicillin 100mg/kg/day by mouth in 4 equally divided doses Phenytoin (Dilantin) 100mg by mouth daily Metronidazole (Flagyl) 500mg IV bolus every 3 hr Acetaminophen (Tylenol) 325 mg by mouth PRN for headache Rationale: Name of medication, dosage, route, and circumstance for administration, but not frequency 4. A nurse working in a medical surgical unit is preparing to administer medications to a client. The nurse plans to use two forms of identification to verify that she has the right client. Which of the following actions should the nurse take to identify the client? (Select all that apply.) Compare the name of the client’s wristband with the name of the MAR Ask the client to state his date of birth Check the room number on the MAR with the room number of the client Ask the client to state his name. Use the bar code scan to identify the client Dosage Calculation Dimensional Analysis: Desired Over Have Oral (PO) 5. A nurse is preparing to administer doxycycline (Vibramycin) 100mg PO every 12hr. Available is doxycycline 50 mg tablets. How many tablets should the nurse administer per dose? (round answer to nearest whole number.) 2 6. A nurse is preparing to administer quinapril (Accupril) 40 mg PO daily. Available is quinapril 20mg tablets. How many tablets should the nurse administer daily? (round answer to nearest whole number.) 2 Injectable 7. A nurse is preparing to administer methylprednisolone sodium succinate (Solu-Medrol) 120 mg IV bolus every 6 hr. Available is methylprednisolone sodium succinate injection 80 mg/mL. How many mL should the nurse administer per dose? (round answer to the nearest tenth) 1.5 mL 8. A nurse is preparing to administer furosemide (Lasix) 30 mg IV bolus stat. Available is furosemide injection 10 mg/mL. How many mL should the nurse administer? (round answer to the nearest tenth) 3 Powdered 9. A nurse is preparing to administer oxacillin (Bactocill) 500 mg IV bolus. The nurse reconstitutes oxacillin 250 mg vial with 2.8 mL sterile water for injection to yield 250 mg/1.5 mL. How many mL should the nurse administer? (Round to the nearest whole number) 3 mL 10. A nurse is preparing to administer cefazolin (Ancef) 1.5 g IV bolus. The nurse reconstitutes cefazolin 1g vial with 2.5 mL sterile water for injection to yield 330 mg/1 mL. How many mL should the nurse administer? (Round to the nearest tent) 4.5 mL Parenteral (IV) Medication 11. A nurse is preparing to administer cefuroxime sodium (Zinacef) 500 mg by intermittent IV bolus every 8 hr. Available is cefuroxime sodium injection 500mg in 0.9% sodium chloride (0.9% NaCl) 50 mL to infuse over 15 min. The nurse should set the IV pump to deliver how many ml/hr? (Round to nearest whole number) 50 mL/15 min x 60 min/hr = 200 mL/hr 12. A nurse is preparing to administer 0.9% sodium chloride (0.9% NaCl) 500 mL IV to infuse over 2 hr. The drop factor of the manual IV tubing is 10 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round to nearest whole number) (500 mL x 10 gtt/min)/(2 hr x 60 min/hr) = 42 INFUSION X GTT X TOTAL MINUTES Dosage by Weight 13. A nurse is preparing to administer valproic acid (Depakote) 45 mg/kg/day PO divided in equal doses every 8 hr to a child who weighs 22 lb. Available is ceftazidime injection 280 mg/mL. How many mL should the nurse administer per dose? (Round to the nearest tenth) 0.5 Dosage Calculation Dimensional Analysis: Ratio and Proportion Have = Desired Quantity X Oral (PO) 14. A nurse is preparing to administer rifampin (Rifadin) 0.6 g PO daily. Available is rifampin 150 mg tablets. How many tablets should the nurse administer? (Round to the nearest whole number) 0.6 gm x 1000mg x 1 tab/150mg = 4 tablets 15. A nurse is preparing to administer trazodone (Oleptro) 50 mg PO at bedtime. Available is trazodone 100 mg tablets. How many tablets should the nurse administer? (Round to the nearest whole number) 50mg x 1 tab/100 mg = 0.5 tablet Injectable 16. A nurse is preparing to administer phenytoin (Dilantin) 100 mg IV bolus every 8 hr. Available is phenytoin injection 50 mg/mL. How many mL should the nurse administer per dose? (Round to the nearest whole number)