ATI Dosage Calculation RN Fundamentals
Proctored Assessment 3.2 – Questions and
Answers. LatestVersion 2026
Q001:
Problem Type: Liquid Oral Medication
Clinical Scenario: A patient is prescribed 250 mg of amoxicillin PO q8h. The suspension
available is 125 mg/5 mL.
Given: Order: 250 mg PO; Available: 125 mg/5 mL
Question: How many mL will the nurse administer per dose?
(Correct Numeric Answer: 10 mL)
Work & Rationale:
● Setup: Desired/Have × Volume = 250 mg / 125 mg × 5 mL
● Calculation: 2 × 5 mL = 10 mL
● Safety Check: Dose is within safe adult range; shake suspension before pouring.
Q002:
Problem Type: Metric Conversion
,Clinical Scenario: A patient needs 0.25 mg PO of digoxin daily. Tablets available are
125 mcg.
Given: Order: 0.25 mg; Available: 125 mcg tablets
Question: How many tablets will the nurse give?
(Correct Numeric Answer: 2 tablets)
Work & Rationale:
● Setup: Convert 0.25 mg = 250 mcg; 250 mcg / 125 mcg per tablet
● Calculation: = 2 tablets
● Safety Check: Double-check apical pulse before administration.
Q003:
Problem Type: Injection (IM)
Clinical Scenario: A patient is prescribed 350 mg of Rocephin IM q24h. Vial labeled 1 g
reconstituted yields 350 mg/mL.
Given: Order: 350 mg IM; Available: 350 mg/mL after reconstitution
Question: How many mL will the nurse administer?
(Correct Numeric Answer: 1 mL)
Work & Rationale:
, ● Setup: Desired/Have = 350 mg / 350 mg × 1 mL
● Calculation: 1 × 1 mL = 1 mL
● Safety Check: IM injection ≤1 mL per site; verify reconstitution time.
Q004:
Problem Type: Weight-Based PO Dose
Clinical Scenario: A child weighing 22 lb is prescribed acetaminophen 10 mg/kg PO q6h
prn. Suspension available is 160 mg/5 mL.
Given: Order: 10 mg/kg; Weight: 22 lb; Available: 160 mg/5 mL
Question: How many mL per dose will the nurse give? Round to nearest 0.5 mL.
(Correct Numeric Answer: 3 mL)
Work & Rationale:
● Setup: 22 lb ÷ 2.2 = 10 kg; 10 mg/kg × 10 kg = 100 mg; 100 mg / 160 mg × 5 mL
● Calculation: 0.625 × 5 = 3.125 mL → 3 mL
● Safety Check: Dose ≤75 mg/kg/day; 4 doses max.
Q005:
Problem Type: Subcutaneous Injection
Clinical Scenario: A patient is prescribed 7,500 units heparin SubQ q12h. Vial labeled
5,000 units/mL.
Proctored Assessment 3.2 – Questions and
Answers. LatestVersion 2026
Q001:
Problem Type: Liquid Oral Medication
Clinical Scenario: A patient is prescribed 250 mg of amoxicillin PO q8h. The suspension
available is 125 mg/5 mL.
Given: Order: 250 mg PO; Available: 125 mg/5 mL
Question: How many mL will the nurse administer per dose?
(Correct Numeric Answer: 10 mL)
Work & Rationale:
● Setup: Desired/Have × Volume = 250 mg / 125 mg × 5 mL
● Calculation: 2 × 5 mL = 10 mL
● Safety Check: Dose is within safe adult range; shake suspension before pouring.
Q002:
Problem Type: Metric Conversion
,Clinical Scenario: A patient needs 0.25 mg PO of digoxin daily. Tablets available are
125 mcg.
Given: Order: 0.25 mg; Available: 125 mcg tablets
Question: How many tablets will the nurse give?
(Correct Numeric Answer: 2 tablets)
Work & Rationale:
● Setup: Convert 0.25 mg = 250 mcg; 250 mcg / 125 mcg per tablet
● Calculation: = 2 tablets
● Safety Check: Double-check apical pulse before administration.
Q003:
Problem Type: Injection (IM)
Clinical Scenario: A patient is prescribed 350 mg of Rocephin IM q24h. Vial labeled 1 g
reconstituted yields 350 mg/mL.
Given: Order: 350 mg IM; Available: 350 mg/mL after reconstitution
Question: How many mL will the nurse administer?
(Correct Numeric Answer: 1 mL)
Work & Rationale:
, ● Setup: Desired/Have = 350 mg / 350 mg × 1 mL
● Calculation: 1 × 1 mL = 1 mL
● Safety Check: IM injection ≤1 mL per site; verify reconstitution time.
Q004:
Problem Type: Weight-Based PO Dose
Clinical Scenario: A child weighing 22 lb is prescribed acetaminophen 10 mg/kg PO q6h
prn. Suspension available is 160 mg/5 mL.
Given: Order: 10 mg/kg; Weight: 22 lb; Available: 160 mg/5 mL
Question: How many mL per dose will the nurse give? Round to nearest 0.5 mL.
(Correct Numeric Answer: 3 mL)
Work & Rationale:
● Setup: 22 lb ÷ 2.2 = 10 kg; 10 mg/kg × 10 kg = 100 mg; 100 mg / 160 mg × 5 mL
● Calculation: 0.625 × 5 = 3.125 mL → 3 mL
● Safety Check: Dose ≤75 mg/kg/day; 4 doses max.
Q005:
Problem Type: Subcutaneous Injection
Clinical Scenario: A patient is prescribed 7,500 units heparin SubQ q12h. Vial labeled
5,000 units/mL.
