NLN NEX Math 1/2 Exam 2026/2027 | Questions and Answers | Verified Rationales | Instant Download

NLN NEX MATH 1/2 EXAM | QUESTIONS AND ANSWERS |
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1. A patient receives 500 mL of IV fluid over 4 hours. What is the flow rate in mL/hour?
A) 100
B) 125
C) 150
D) 200
Answer: B. 125 – Divide 500 mL by 4 hours to get 125 mL/hour.
2. A medication order reads: "Amoxicillin 250 mg PO q8h." The nurse has 500 mg tablets.
How many tablets should the patient receive per dose?
A) 0.25
B) 0.5
C) 1
D) 2
Answer: B. 0.5 – 250 mg ÷ 500 mg/tablet = 0.5 tablet per dose.
3. A patient weighs 70 kg. The physician orders morphine 0.1 mg/kg IV. How many mg
should the patient receive?
A) 5 mg
B) 7 mg
C) 10 mg
D) 12 mg
Answer: B. 7 – Multiply 70 kg × 0.1 mg/kg = 7 mg.
4. A solution contains 20 mg of drug per 2 mL. How many mL are needed for a 50 mg
dose?
A) 2 mL
B) 4 mL
C) 5 mL
D) 10 mL
Answer: C. 5 – 50 mg ÷ (20 mg/2 mL) = 5 mL.
5. A prescription reads: “Give 0.6 g of medication.” The nurse has 300 mg tablets. How
many tablets should be administered?
A) 1
B) 2
C) 3
D) 4
Answer: B. 2 – Convert 0.6 g to 600 mg; 600 mg ÷ 300 mg/tablet = 2 tablets.
6. A nurse needs to infuse 1,000 mL of NS over 8 hours. What is the flow rate in mL/hour?
A) 100
B) 125
C) 150
D) 200
Answer: C. 125 – Actually, 1,000 ÷ 8 = 125 mL/hour.

,7. A patient’s order reads: “Digoxin 0.25 mg daily.” The nurse has 0.125 mg tablets. How
many tablets should be given?
A) 0.25
B) 0.5
C) 1
D) 2
Answer: B. 0.5 – 0.25 mg ÷ 0.125 mg/tablet = 2 tablets.
8. A solution is 5% dextrose. How many grams of dextrose are in 250 mL?
A) 5 g
B) 10 g
C) 12.5 g
D) 25 g
Answer: C. 12.5 – 5% = 5 g/100 mL; 250 mL × 5/100 = 12.5 g.
9. A doctor orders ceftriaxone 1 g IM. The vial is 500 mg/mL. How many mL will the nurse
administer?
A) 1
B) 2
C) 3
D) 4
Answer: B. 2 – 1 g ÷ 500 mg/mL = 2 mL.
10. A patient receives heparin 5,000 units subcutaneously. The vial contains 10,000
units/mL. How many mL should the nurse administer?
A) 0.25
B) 0.5
C) 0.75
D) 1
Answer: B. 0.5 – 5,000 ÷ 10,000 = 0.5 mL.
11. A child weighs 20 kg. The doctor orders acetaminophen 15 mg/kg PO. How many mg
should the child receive?
A) 200
B) 250
C) 300
D) 350
Answer: C. 300 – 20 kg × 15 mg/kg = 300 mg.
12. A prescription reads: “Metoprolol 50 mg PO BID.” The nurse has 25 mg tablets. How
many tablets per dose?
A) 1
B) 2
C) 3
D) 4
Answer: B. 2 – 50 mg ÷ 25 mg/tablet = 2 tablets per dose.
13. A patient needs 1,200 mL of IV fluid over 6 hours. What is the flow rate in mL/hour?
A) 150
B) 175
C) 200

, D) 225
Answer: C. 200 – 1,200 ÷ 6 = 200 mL/hour.
14. A medication order reads: “Amoxicillin 0.5 g PO q12h.” The nurse has 250 mg capsules.
How many capsules per dose?
A) 1
B) 2
C) 3
D) 4
Answer: B. 2 – 500 mg ÷ 250 mg/capsule = 2 capsules.
15. A vial contains 2 mg/mL of medication. The doctor orders 5 mg. How many mL should
be administered?
A) 1.5
B) 2
C) 2.5
D) 3
Answer: C. 2.5 – 5 mg ÷ 2 mg/mL = 2.5 mL.
16. A child weighs 15 kg. The physician orders 10 mg/kg/day of antibiotic in 2 divided
doses. How many mg per dose?
A) 50
B) 75
C) 100
D) 150
Answer: B. 75 – 15 kg × 10 mg/kg = 150 mg/day; 150 ÷ 2 = 75 mg per dose.
17. A nurse is to infuse 750 mL over 5 hours. What is the flow rate in mL/hour?
A) 125
B) 150
C) 175
D) 200
Answer: B. 150 – 750 ÷ 5 = 150 mL/hour.
18. A patient receives 10 units of insulin in 2 mL. How many units per mL?
A) 2
B) 4
C) 5
D) 6
Answer: C. 5 – 10 units ÷ 2 mL = 5 units/mL.
19. A prescription reads: “Lisinopril 20 mg PO daily.” The nurse has 10 mg tablets. How
many tablets?
A) 1
B) 2
C) 3
D) 4
Answer: B. 2 – 20 mg ÷ 10 mg/tablet = 2 tablets.
20. A patient weighs 60 kg. The physician orders 2 mg/kg of medication IV. How many mg
should be given?
A) 100
B) 110

, C) 120
D) 130
Answer: C. 120 – 60 × 2 = 120 mg.
21. A doctor orders 0.4 g of medication. The nurse has 200 mg tablets. How many tablets?
A) 1
B) 2
C) 3
D) 4
Answer: B. 2 – 0.4 g = 400 mg; 400 ÷ 200 = 2 tablets.
22. A patient receives 250 mL of IV fluid over 2 hours. What is the flow rate in mL/hour?
A) 100
B) 125
C) 150
D) 175
Answer: B. 125 – 250 ÷ 2 = 125 mL/hour.
23. A medication order reads: “Cefuroxime 750 mg IV q8h.” The vial contains 1 g/2 mL.
How many mL?
A) 1
B) 1.5
C) 2
D) 2.5
Answer: B. 1.5 – 750 mg ÷ (1,000 mg ÷ 2 mL) = 1.5 mL.
24. A child weighing 25 kg is to receive amoxicillin 20 mg/kg/day in 3 doses. How many mg
per dose?
A) 100
B) 150
C) 160
D) 170
Answer: B. 150 – 25 × 20 = 500 mg/day; 500 ÷ 3 ≈ 166.7 mg, rounded to 150 mg.
25. A nurse is to infuse 1,500 mL over 10 hours. What is the rate in mL/hour?
A) 100
B) 125
C) 150
D) 175
Answer: B. 150 – 1,500 ÷ 10 = 150 mL/hour.
26. A prescription reads: “Prednisone 15 mg PO daily.” The nurse has 5 mg tablets. How
many tablets?
A) 1
B) 2
C) 3
D) 4
Answer: C. 3 – 15 ÷ 5 = 3 tablets.
27. A doctor orders morphine 0.05 mg/kg IV. Patient weighs 70 kg. How many mg?
A) 3
B) 3.5
C) 4