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Why This Matters for Nursing: Accurate measurement is essential for dosing medications, recording vital signs, and interpreting lab results. Lab safety principles apply to clinical settings where you handle hazardous materials and body fluids.
Scientific measurement requires precision, accuracy, and proper units. Lab safety protects you and patients from hazards.
Metric Prefixes (big to small): "King Henry Died By Drinking Chocolate Milk" Kilo β Hecto β Deka β Base β Deci β Centi β Milli
Significant Figures: - All non-zero digits are significant - Zeros between non-zero digits are significant - Leading zeros are NOT significant
| Measurement | Base Unit | Symbol |
|---|---|---|
| Length | Meter | m |
| Mass | Gram | g |
| Volume | Liter | L |
| Temperature | Celsius | Β°C |
| Prefix | Symbol | Meaning |
|---|---|---|
| Kilo- | k | 1,000 |
| Centi- | c | 0.01 (1/100) |
| Milli- | m | 0.001 (1/1,000) |
| Micro- | ΞΌ or mcg | 0.000001 (1/1,000,000) |
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