Medical Office Assistant · Foundational Medical Knowledge

Units of Measure and Metric Conversions

On this page 3 sections
  1. Quick check
  2. Study tools
  3. Sources & references

Quick check

5 questions here, of 89 in this lesson’s practice set. Answers stay hidden until you check.

Question 1 of 5foundational

Which of the following is a unit used to measure weight (mass) in the metric system?

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Question 2 of 5foundational

Which metric unit is used to measure the volume of a liquid such as water or oral medication?

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Question 3 of 5foundational

In the metric system, the prefix 'milli-' means which value?

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Question 4 of 5foundational

The metric prefix 'kilo-' represents a factor of which value?

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Question 5 of 5foundational

The metric prefix 'micro-' represents a factor of which value?

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You’ll learn to

  • Identify metric units of measure for weight, volume, length, and temperature.
  • Convert accurately within the metric system, including gram, milligram, microgram, liter, and milliliter conversions.
  • Apply household-to-metric equivalencies for common measurements.
  • Recognize the safety importance of correct units, decimal placement, and error-prone abbreviations.

Sources & references

  1. Institute for Safe Medication Practices — ISMP - Medication Safety
  2. U.S. National Library of Medicine — MedlinePlus Medical Encyclopedia
  3. U.S. Food and Drug Administration — Drugs

This lesson was adapted from the open educational references above; their licenses and attributions are preserved. See Copyright & Licensing.

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