focus on pharmacology essentials for health professionals chapter terminology, abbreviations, and...
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Focus onFocus on
PHARMACOLOGYPHARMACOLOGYESSENTIALS FOR HEALTH PROFESSIONALS
CHAPTER
Terminology, Abbreviations, and Dispensing Prescriptions
3
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Medical TerminologyMedical Terminology
• Medical terminology originated primarily from Greek and Latin prefixes, roots, and suffixes, known as word parts.
• Health-care professionals involved with pharmacology must be familiar with word building, common medical terms, and abbreviations.
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Medical TerminologyMedical Terminology
• A root is the main part of a word that gives the word its central meaning.
• A prefix is a structure at the beginning of a word that modifies the meaning of the root.
• A suffix is similar in function to a prefix, but appears at the end of a word.
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Understanding TerminologyUnderstanding Terminology
Prefix + Root + Suffix
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Understanding TerminologyUnderstanding Terminology
Prefix + Root + SuffixHypo + glyc + emia
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Understanding TerminologyUnderstanding Terminology
Prefix + Root + SuffixHypo + glyc + emia
Too little + sugar + blood condition
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Understanding TerminologyUnderstanding Terminology
HypoglycemiaCondition of low blood sugar levels
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.1Selected Roots
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.2Common Prefixes
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-1 Some Common General Prefixes
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.3Common Suffixes
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-2 Some Common General Suffixes
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Combining VowelsCombining Vowels
• Medical terms are formed from many different word parts.
• These parts are often joined by combining vowels.
• The most common combining vowels are the letters o and i.
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.4General Pharmacy Abbreviations
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.4 (continued)General Pharmacy Abbreviations
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.5Pharmacy Abbreviations—Directions/SIG Codes
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.5 (continued)Pharmacy Abbreviations—Directions/SIG Codes
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.6Pharmacy Abbreviations—Routes of Administration
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.7Pharmacy Abbreviations
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.8General Medical Abbreviations
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.8 (continued)General Medical Abbreviations
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-3 Abbreviations Commonly Used in Prescriptions
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-3 (continued) Abbreviations Commonly Used in Prescriptions
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-3 (continued) Abbreviations Commonly Used in Prescriptions
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-4 Abbreviations Commonly Used for Measurements
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-5 General Medical Abbreviations
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-5 (continued) General Medical Abbreviations
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-5 (continued) General Medical Abbreviations
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 3-5 (continued) General Medical Abbreviations
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.9JCAHO’s “Minimum” Do Not Use List
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.10JCAHO’s “Recommended” Do Not Use List
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Drug NamesDrug Names
• Chemical name: chemical makeup of a drug; often very complicated
• Generic name: also official, approved, or nonproprietary name; not protected by copyright
• Proprietary name: also brand or trade name; assigned by manufacturers and protected by copyright
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Table 5.12 (continued)Common Brand-Name and Generic Prescription Drugs
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Sources of Drug DerivationSources of Drug Derivation
• Plants (e.g., alkaloids)• Humans/animals (e.g., hormones)• Minerals (e.g., sodium, iodine, etc.)• Synthetics: manufactured (e.g., oral
contraceptives)• Engineered: genetically engineered;
(e.g., some insulins)
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Drug FormsDrug Forms
• Classified by physical state (liquid, solid) and chemical composition
• Determine whether action is local or systemic
• Allow for oral, topical, mucosal, or parenteral (injectable) use
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Preparations for Oral UsePreparations for Oral Use
• Oral drugs: solid or liquid forms• Form influences rate of dissolution and
absorption• Liquids are more readily available for GI
absorption than solids.
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Solid DrugsSolid Drugs
• Pills: powdered drug mixed with liquid and rolled into round or oval shape
• Tablets: powdered form of drug and bulk-filling material compressed under high pressure; various types include:– Chewable, sublingual, buccal, enteric-
coated, buffered, and sustained-release
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Figure 3-1 Solid drug forms.
Al D
odge
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Solid DrugsSolid Drugs
• Capsules: external shell usually made of gelatin contains drug in powder, granule, liquid, or combination form
• Enteric-coating: prevents capsule or tablet from being dissolved in stomach where it may cause irritation; absorption occurs in intestines
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Solid DrugsSolid Drugs
• Caplets: shaped like capsules with form of tablets; film-coated for easy swallowing
• Gelcaps: oil-based drug in soft gelatin capsules
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Figure 3-2 Examples of tablets.
Al D
odge
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Figure 3-3 Examples of capsules.
Al D
odge
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Figure 3-4 Examples of gelcaps.
Al D
odge
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Solid DrugsSolid Drugs
• Powders: dried and finely ground drugs• Granules: tiny pills usually in gelatin
capsules; usually intended for gradual release
• Troches or lozenges: flattened disks that may be hard or semisolid (e.g., cough suppressants)
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Liquid DrugsLiquid Drugs
• Syrups and linctuses: aqueous solutions containing high concentrations of sugars
• Solutions: drugs dissolved in appropriate solvent
• Elixirs: solutions of water, alcohol, and sugar
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Liquid DrugsLiquid Drugs
• Infants and young children are not able to take solid drug forms such as tablets or capsules. Liquid drugs should be used.
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Liquid DrugsLiquid Drugs
• Fluid extracts: concentrated drug solutions from plant source mixed with suitable solvent, usually alcohol
• Mixtures or suspensions: drug agent mixed with liquid but not dissolved; must be shaken before administration
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Liquid DrugsLiquid Drugs
• Tinctures: alcoholic preparations of soluble drugs, usually from plant source
• Emulsions: preparations combining two elements (such as oil and water) that cannot ordinarily be mixed
• Spirits or essences: alcoholic liquids that may be used pharmaceutically as solvents
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Storing Drugs That Storing Drugs That Contain AlcoholContain Alcohol
• Elixirs, spirits, tinctures, and fluidextracts contain alcohol.
• Keep them tightly sealed so that the alcohol cannot evaporate.
• Store them in a dark place as specified on label.
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Liquid DrugsLiquid Drugs
• Aerosols: frequently delivered by oral inhalers or nebulizers for rapid absorption into blood circulation
• Magmas: particles suspended in liquid; more pasty in consistency than other suspensions
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Topical Drugs: SemisolidsTopical Drugs: Semisolids
• Creams: semisolids in both aqueous and oily base (e.g., benzoyl peroxide)
• Ointments: similar to creams; used for local protective, soothing, astringent, or transdermal systemic effects (e.g., zinc oxide)
• Plasters: combination liquids and powders that harden when dry (e.g., salicylic acid)
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Topical Drugs: LiquidsTopical Drugs: Liquids
• Liniments: liquid suspensions for external application to skin
• Gels or jellies: jellylike substances used for topical application
• Lotions: suspensions of drugs in water base for external use
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Injectable DrugsInjectable Drugs
• Provide rapid response; also called parenteral
• Available as powders or solutions• Administered by following methods:
– Intra-articular– Intradermal– Intramuscular (IM)
– Epidural– Subcutaneous– Intravenous (IV)
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Other Forms of MedicationsOther Forms of Medications
• Ophthalmic: eye drops and ointments• Otic: ear medications • Nasal: nose drops or sprays• Vaginal: solutions, creams, tablets,
suppositories• Rectal: suppositories or enemas• Inhalation: anesthetic gases,
compressed gases, bronchodilators
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Figure 3-5A Examples of otic drops. © Elena Dorfman.
Dorl
ing K
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ley,
Ltd
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Figure 3-5B Examples of ophthalmic drops.
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y Im
ages
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Figure 3-5C Examples of nasal drops.
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Safe Storage of DrugsSafe Storage of Drugs
• Do not expose medicines to sunlight, bright light, moisture, or extremes in temperatures.
• Store insulin and vaccine preparations in a refrigerator according to the manufacturer’s directions.
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Dispensing DrugsDispensing Drugs
• Over-the-counter (OTC) drugs: available for self-medication; do not require prescription
• Legend drugs: require prescription from licensed practitioner (physicians, dentists, veterinarians, etc.)
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Contents of PrescriptionsContents of Prescriptions
• Name and address of patient and Date• Address of prescriber’s office• Medication prescribed (inscription)• Rx symbol (superscription)• Dispensing directions (subscription)• Directions for patient (signa)
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Contents of PrescriptionsContents of Prescriptions
• Refill and special labeling• Prescriber’s signature, license or DEA
number
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Figure 3-6 Example of a physician’s prescription. (A) The prescriber’s office name, address, and phone number. (B) The patient’s name, address, and date of prescription.
(C) The super-scription (“Rx” symbol). (D) The inscription (names and quantities of ingredients). (E) The subscription (tells the pharmacist how many units of medication are needed). (F) The signature (Sig), which tells the patient how to take the medication. (G) Signature blank(s), where the prescriber signs. (H) The repetatur (which tells how many
refills are allowed).
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Telephone Orders Telephone Orders and Standing Ordersand Standing Orders
• Prescribed by physicians who cannot be present at time of administration
• Telephone orders: must be followed up with written drug order
• Standing orders: ongoing prescriptions in hospitals, nursing homes, or residential care settings; must be signed and dated
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Hospital Drug ChartsHospital Drug Charts
• Also known as physician order sheets; must be transcribed onto medication administration record (MAR) and include:– Approved drug names– All instances when drugs are administered
or not administered (including reasons)– Nurse-initiated therapy (with physician
countersignature)
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Focus on Pharmacology: Essentials for Health Professionals, Second EditionJahangir Moini
Figure 3-7 Medical administration record as used in many hospitals.