Mass and Volume Conversions
Convert common metric mass and volume units without changing the represented quantity.
How to prepare for the NMC Midwifery CBT
Combine unit-safe calculation with newly qualified midwife judgement grounded in the Code, informed choice, continuity, physiology, timely escalation and collaborative care.
Core concepts
Concept 1
Kilograms, grams, milligrams and micrograms change the number and unit together.
Exam cue: Write the conversion factor.
Concept 2
Unit cancellation makes the direction of a conversion visible.
Exam cue: Estimate whether the new number should be larger or smaller.
Risk pitfalls and guardrails
Multiplying when division is required.
Guardrail: Do not choose a familiar task if it ignores deterioration, consent, medicines risk, scope, communication or follow-up.
Confusing milligrams with micrograms.
Guardrail: Do not choose a familiar task if it ignores deterioration, consent, medicines risk, scope, communication or follow-up.
Memory anchors
How many milligrams are in one gram?
1,000 milligrams.
How many micrograms are in one milligram?
1,000 micrograms.
How many grams are in one kilogram?
1,000 grams.
Why cancel units?
It exposes conversion direction and leaves the requested unit.
What catches a thousand-fold error?
A magnitude estimate before accepting the answer.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
A prescribed dose is 2.4 g, but the medicines chart records doses in milligrams. What value should be entered?
Convert 0.75 mg to micrograms.
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
What is Pass Harbor?
Completely free exam prep for 247 UK exams.
- Practice questions
- Flashcards
- Study guides
- Mock exams
- No registration
- No paywall
- Start instantly
“No more expensive exam prep. Quality study tools should be accessible to everyone.”