**Title:** **Dosage Calculation & Safe Medication
Administration: NCLEX-RN Math Mastery**
---
### Question 1 of 77
A nurse is preparing to administer heparin 5,000 units subcutaneously. The available vial is labeled
10,000 units/mL. How many mL should the nurse administer?
A) 0.25 mL
B) 0.5 mL
C) 1 mL
D) 2 mL
💫RATIONALE✔️✔️: Use formula: (Desired dose ÷ Available dose) x volume = (5,000 ÷ 10,000) x 1 mL = 0.5
mL.
💫ANSWER✔️✔️: B) 0.5 mL
---
### Question 2 of 77
A nurse is to infuse 1,000 mL of 0.9% sodium chloride over 8 hours. The drop factor is 15 gtt/mL. How
many gtt/min should the nurse administer?
A) 21 gtt/min
,B) 31 gtt/min
C) 42 gtt/min
D) 52 gtt/min
💫RATIONALE✔️✔️: (Volume × drop factor) ÷ time in minutes = (1000 mL × 15) ÷ (8 × 60) = 15,000 ÷ 480 =
31.25 → 31 gtt/min.
💫ANSWER✔️✔️: B) 31 gtt/min
---
### Question 3 of 77
**Select-All-That-Apply (SATA):** A nurse is reviewing safe medication administration. Which actions
are correct? (Select all that apply.)
A) Check the client’s ID band before giving meds.
B) Use two client identifiers (name and birth date).
C) Remove oral tablets from the wrapper at the nurse’s station.
D) Document after medication is given.
E) Leave the medication at the bedside if the client is in the bathroom.
💫RATIONALE✔️✔️: Two identifiers (A, B) and documentation after administration (D) are correct.
Prepare at bedside, not station. Never leave meds unattended.
💫ANSWER✔️✔️: A, B, D
---
### Question 4 of 77
,A nurse has an order for ceftriaxone (Rocephin) 500 mg IM. The reconstituted solution provides 350
mg/mL. How many mL should the nurse administer?
A) 0.7 mL
B) 1.4 mL
C) 1.7 mL
D) 2.1 mL
💫RATIONALE✔️✔️: 500 mg ÷ 350 mg/mL = 1.428 mL → round to 1.4 mL.
💫ANSWER✔️✔️: B) 1.4 mL
---
### Question 5 of 77
A nurse is to administer furosemide (Lasix) 40 mg IV push. The vial contains 10 mg/mL. How many mL
should the nurse draw up?
A) 2 mL
B) 3 mL
C) 4 mL
D) 5 mL
💫RATIONALE✔️✔️: 40 mg ÷ 10 mg/mL = 4 mL.
💫ANSWER✔️✔️: C) 4 mL
---
### Question 6 of 77
, A client weighs 220 lbs. The order is for a medication 2 mg/kg IV. How many mg should the nurse
administer?
A) 100 mg
B) 200 mg
C) 300 mg
D) 400 mg
💫RATIONALE✔️✔️: 220 lbs ÷ 2.2 = 100 kg. 100 kg × 2 mg/kg = 200 mg.
💫ANSWER✔️✔️: B) 200 mg
---
### Question 7 of 77
**Select-All-That-Apply (SATA):** A nurse is preparing to administer IV potassium chloride. Which
actions are correct? (Select all that apply.)
A) Administer by IV push slowly.
B) Use an infusion pump.
C) Mix in a compatible solution like NS.
D) Monitor for phlebitis at the IV site.
E) Give undiluted for rapid repletion.
💫RATIONALE✔️✔️: IV potassium requires pump (B), compatible solution (C), and phlebitis monitoring
(D). Never give IV push or undiluted.
💫ANSWER✔️✔️: B, C, D
---
Administration: NCLEX-RN Math Mastery**
---
### Question 1 of 77
A nurse is preparing to administer heparin 5,000 units subcutaneously. The available vial is labeled
10,000 units/mL. How many mL should the nurse administer?
A) 0.25 mL
B) 0.5 mL
C) 1 mL
D) 2 mL
💫RATIONALE✔️✔️: Use formula: (Desired dose ÷ Available dose) x volume = (5,000 ÷ 10,000) x 1 mL = 0.5
mL.
💫ANSWER✔️✔️: B) 0.5 mL
---
### Question 2 of 77
A nurse is to infuse 1,000 mL of 0.9% sodium chloride over 8 hours. The drop factor is 15 gtt/mL. How
many gtt/min should the nurse administer?
A) 21 gtt/min
,B) 31 gtt/min
C) 42 gtt/min
D) 52 gtt/min
💫RATIONALE✔️✔️: (Volume × drop factor) ÷ time in minutes = (1000 mL × 15) ÷ (8 × 60) = 15,000 ÷ 480 =
31.25 → 31 gtt/min.
💫ANSWER✔️✔️: B) 31 gtt/min
---
### Question 3 of 77
**Select-All-That-Apply (SATA):** A nurse is reviewing safe medication administration. Which actions
are correct? (Select all that apply.)
A) Check the client’s ID band before giving meds.
B) Use two client identifiers (name and birth date).
C) Remove oral tablets from the wrapper at the nurse’s station.
D) Document after medication is given.
E) Leave the medication at the bedside if the client is in the bathroom.
💫RATIONALE✔️✔️: Two identifiers (A, B) and documentation after administration (D) are correct.
Prepare at bedside, not station. Never leave meds unattended.
💫ANSWER✔️✔️: A, B, D
---
### Question 4 of 77
,A nurse has an order for ceftriaxone (Rocephin) 500 mg IM. The reconstituted solution provides 350
mg/mL. How many mL should the nurse administer?
A) 0.7 mL
B) 1.4 mL
C) 1.7 mL
D) 2.1 mL
💫RATIONALE✔️✔️: 500 mg ÷ 350 mg/mL = 1.428 mL → round to 1.4 mL.
💫ANSWER✔️✔️: B) 1.4 mL
---
### Question 5 of 77
A nurse is to administer furosemide (Lasix) 40 mg IV push. The vial contains 10 mg/mL. How many mL
should the nurse draw up?
A) 2 mL
B) 3 mL
C) 4 mL
D) 5 mL
💫RATIONALE✔️✔️: 40 mg ÷ 10 mg/mL = 4 mL.
💫ANSWER✔️✔️: C) 4 mL
---
### Question 6 of 77
, A client weighs 220 lbs. The order is for a medication 2 mg/kg IV. How many mg should the nurse
administer?
A) 100 mg
B) 200 mg
C) 300 mg
D) 400 mg
💫RATIONALE✔️✔️: 220 lbs ÷ 2.2 = 100 kg. 100 kg × 2 mg/kg = 200 mg.
💫ANSWER✔️✔️: B) 200 mg
---
### Question 7 of 77
**Select-All-That-Apply (SATA):** A nurse is preparing to administer IV potassium chloride. Which
actions are correct? (Select all that apply.)
A) Administer by IV push slowly.
B) Use an infusion pump.
C) Mix in a compatible solution like NS.
D) Monitor for phlebitis at the IV site.
E) Give undiluted for rapid repletion.
💫RATIONALE✔️✔️: IV potassium requires pump (B), compatible solution (C), and phlebitis monitoring
(D). Never give IV push or undiluted.
💫ANSWER✔️✔️: B, C, D
---
