1. Abbreviations and Systems of Measurement
Chapter 5
Abbreviations and Systems of Measurement

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Abbreviations
Knowledge of abbreviations and symbols is essential
Memorize common abbreviations and symbols
Accurate interpretation of provider’s order
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Medication Orders
Date
Patient’s name
Medication name
Dosage or amount of medication
Route or manner of administration
Time to be administered and frequency
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Prescription Blank
Check for completeness and accuracy
DEA registration number
Specify number of refills
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Avoiding Errors
Institute for Safe Medication Practices (ISMP)
JCAHO
Avoid use of periods
Must be written and signed by provider
Telephone orders differ by state
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Avoiding Errors
Question any incomplete orders
Question orders as necessary to ensure accuracy
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7. Legible Prescription Law
Some states have passed legislation
Medication must be legibly printed or typed
Quantity must be in both textual and numerical formats
Prescriber must print name under signature
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8. Systems of Measurement
Must know all three systems
May need to convert between systems
Apothecary system
Metric system
Household system
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Apothecary System
Solid Measurements
Grain
Dram
Ounce
Pound
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Apothecary System
Liquid Measurements
Minim
Fluid dram
Fluid ounce
Pint
Quart
Gallon
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11. Approximate Equivalents – Liquid Measurements
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12. Approximate Equivalents – Solid Measurement
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Patient Education
Speak clearly
Observe for comprehension
Ask them to repeat the directions
Written clearly
Correct measuring devices
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