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Keep shoppingDosage Calculation for Nursing School and the NCLEX
80 students
Dosage Calculation for Nursing School and the NCLEX
Move from math anxiety to medication safety. Worked examples for fundamentals, skills lab, clinicals, and the NCLEX
Last updated 5/2026
English
What you'll learn
- Solve oral, parenteral, IV, and critical care dosage problems accurately using three interchangeable methods
- Convert confidently between metric, household, and apothecary units without memorizing tables
- Recognize when a calculated dose falls outside the safe range — the habit that prevents the most clinical errors
- Set up weight-based pediatric and critical care drip calculations from first principles, not formula recall
- Identify the most common dosage calculation mistakes and the verification steps that catch them
- Prepare for dosage calc exams, the NCLEX, and real medication administration with the same underlying logic
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Course content
6 sections • 10 lectures • 1h 38m total length
Requirements
- No prior dosage calculation experience required — the course starts at the foundation
- Comfort with basic arithmetic: multiplication, division, fractions, decimals
- A calculator is optional — methods are taught so you can verify by hand
- Pen and notebook (or the Dosage Calculation workbook, if you have it) — you'll work problems alongside the lectures
Description
Dosage calculation is the math you have to get right. Not "should." Not "ideally." Right. A misplaced decimal on an IV drip rate isn't a graded mistake — it's a patient safety event. The point of this course is to get you to the place where the calculations feel automatic, so that when you're tired, distracted, or rushed in clinical, the right answer is the easy one.
Taught the way I'd walk through it with a student in office hours: worked examples, talked through out loud, with the clinical reasoning behind why each step matters at the bedside. Less "here's a formula on a slide," more "here's the patient in front of you and here's what you do."
What you'll work through:
Unit conversions (metric, household, between systems)
Oral medication calculations — tablets, capsules, liquid suspensions
Parenteral medications — IM, subcutaneous, dose-by-weight
IV calculations — flow rates, drip rates, infusion times
Critical care titrations — mcg/kg/min, mL/hr, weight-based drips
Pediatric dosing — safe-range checks, weight-based math, the safety habits that prevent the most common errors
Three methods, taught side-by-side. Dimensional analysis, ratio-proportion, and the desired-over-have formula. You don't need to pick one camp — you need to recognize which method is fastest for the problem in front of you. That flexibility is what separates students who pass dosage calc the first time from students who retake it.
This course pairs with the workbook and quiz app. The course is the instruction layer; the Dosage Calculation workbook (Amazon, paperback and Kindle) is the practice layer with hundreds of problems to work by hand; the Nursing Dosage Calc Quiz app (iOS and Android) is the review layer for clinicals and between-shift practice. Each format reinforces the other. Most students who use all three move faster than students who rely on one.
Part of the Nursing School & NCLEX Preparation Pathway — a four-subject series covering Dosage Calculation, Pharmacology, Clinical Judgment, and Prioritization & Delegation.
Taught by Dr. David P. Zapencki, DNP, MSN/Ed, CNE, CCRN — practicing nursing program chair, NLN-certified nurse educator, and the author of the workbook this course is built around.
Who this course is for:
- First-semester nursing students preparing for a med-administration or dosage calc exam
- Nursing students who froze on an IV drip rate question and want it not to happen again
- LPN-to-RN, paramedic-to-RN, and other bridge-program students refreshing fundamentals
- NCLEX preparers shoring up the dosage-calc question types
- Practicing nurses, pharmacy technicians, and medication aides who want a clean refresher