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ClinicalJudge Learning Lab

ClinicalJudge Dosage Lab

Calculate with confidence. Catch unsafe doses. Protect the patient. An interactive medication-math environment for nursing students and NCLEX-RN candidates — read orders and labels, convert units, and calculate oral, injectable, weight-based, IV, and infusion doses using the original ClinicalJudge D.O.S.E. Method, with step-by-step unit-cancellation rationales and a deterministic engine that verifies every answer.

Practice free without an account; your progress saves on this device. All scenarios, labels, and rationales are original to ClinicalJudge.

ClinicalJudge Dosage Lab

Calculate with confidence.
Catch unsafe doses. Protect the patient.

A complete medication-math environment — read orders and labels, convert units, calculate oral, injectable, weight-based, IV, and infusion doses, and judge safety using the original ClinicalJudge D.O.S.E. Method. Every answer is checked by a deterministic engine.

Free demo · no account neededRead the order, then the label

Order: Give 500 mg by mouth. Label: oral solution, 160 mg per 5 mL.

Tap each item to reveal what to pull from the order and label:

0Questions completed
Overall accuracy
First-attempt accuracy
0 dStudy streak
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Tools — calculator & unit reference
Basic calculator
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Left-to-right (no operator precedence) — a scratchpad aid, not a substitute for showing your units.

Conversion & formula reference
Mass1 g = 1000 mg · 1 mg = 1000 mcg · 1 mcg = 1000 ng
Volume1 L = 1000 mL · 1 dL = 100 mL
Weight1 kg = 2.2 lb (lb → kg: divide by 2.2)
Time1 hr = 60 min · 1 day = 24 hr
Dripgtt/min = (mL × drop factor) ÷ minutes
PumpmL/hr = volume (mL) ÷ time (hr)
NotationLeading zero for < 1 (0.5, not .5) · no trailing zeros (5, not 5.0)

Educational use only. ClinicalJudge Dosage Lab is an educational tool for nursing students. It does not replace current medication references, pharmacy verification, facility policies, provider orders, clinical supervision, or professional nursing judgment. All patients, orders, labels, and pump interfaces are fictional and original; no real label, manufacturer packaging, commercial pump, question bank, or NCLEX sample is reproduced, and no affiliation with or endorsement by any manufacturer, the NCSBN, or the NCLEX is implied. Real-world procedures vary by institution, jurisdiction, medication, technology, and policy. This practice does not predict or guarantee exam results or clinical competency.