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NURS 1510 Unit 2: Administering Medications Metro Community College NURS 1510 Nancy Pares, RN, MSN. Legal Considerations. U.S. drug legislation Sets official drug standards Defines prescription drugs Regulates controlled substances Improves safety Requires proof of efficacy.
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NURS 1510 Unit 2: Administering MedicationsMetro Community CollegeNURS 1510Nancy Pares, RN, MSN
Legal Considerations • U.S. drug legislation • Sets official drug standards • Defines prescription drugs • Regulates controlled substances • Improves safety • Requires proof of efficacy • Nurse Practice Acts • Identify nursing responsibilities for administration and client monitoring
Medication Systems Unit Dose: • Individually packaged • Client-specific drawers • 24-hour supply Stock Supply: • Bulk quantity • Central location • Not client-specific
Medication Systems Automated Dispenser: • Password-accessible locked cart • Computerized tracking • Can combine stock and unit doses Self-Administration: • Individual containers • Kept at client’s bedside
Pharmacological Considerations Pharmacokinetics: • What happens to the drug in the body Pharmacodynamics: • How the drug affects the body
Pharmacokinetics Four processes: • Absorption • Distribution • Metabolism • Excretion
Absorption • Movement of drug into the bloodstream • Factors affecting absorption: • Route of administration • Drug solubility • pH/ionization • Blood flow
Distribution • Drug transport to tissues and organs • Factors affecting distribution: • Local blood flow • Membrane permeability • Protein-binding capacity
Metabolism • Biotransformation: chemical conversion of drug • Factors affecting metabolism: • Liver function • Health/disease status • First-pass effect
Excretion • Elimination of the drug • Factors affecting excretion: • Organ function, especially the kidneys, liver, and lungs
Concepts Related to Pharmacokinetics • Time until onset and peak • Therapeutic range • Peak level • Trough level • Therapeutic level • Half-life • Concentration of active drug
Pharmacodynamics: Effects of Drugs Primary effects: • Therapeutic effects • Predicted • Intended • Desired • Why the drug was prescribed
Pharmacodynamics Secondary effects: • Unintended • Nontherapeutic • Can be: • Predictable • Harmless • Harmful
Pharmacodynamics Types of secondary effects: • Side effects • Adverse reactions • Toxic reactions • Allergic reactions • Idiosyncratic reactions • Cumulative effect
Drug Interactions • Antagonistic • Synergistic • Incompatibilities
Nursing Considerations: The Medication Order Types of medication orders: • Written order • Automatic “stop” date • STAT order • Standing order • PRN order
Nursing Considerations: The Medication Order Communication of orders: • Handwritten • Preprinted • Orally • Telephone
Components of the Medication Order • Client’s full name • Date and time order was written • Name of medication • Dosage size, frequency, number of doses • Route of administration • Signature of prescriber
Nursing Considerations: Medication Administration Safety Three checks: • Before you pour: • Check the medication label against the MAR • After you pour: • Verify the label against the MAR • At the bedside: • Check the medication again
Nursing Considerations: Medication Administration Safety Other Rights: • Right reason • Right to know • Right to refuse Six Rights: • Right drug • Right client • Right dose • Right time • Right route • Right documentation
Routes of Administration • Tablets, pills, capsules • Liquids(syrups, elixers, suspensions, emulsions • Buccal • Sublingual • Enteral medications • Troche Oral medications: • Most commonly used route • Includes:
Overview of Medication Administration, by Routes • Lotions, creams, ointments • Transdermal patches • Eye and ear • Nasal • Vaginal • Rectal Topical medications: • Applied directly to body surface/body cavities • Local effects:
Routes of Administration Respiratory inhalations: • Use concept of nebulization • Absorption via alveoli and blood supply • Atomizers • Aerosol • Metered dose inhaler
Routes of Administration Parenteral medications: • Intradermal • Subcutaneous • Intramuscular • Intravenous
Parenteral Medication Administration Equipment Preparation: • Syringe/needle (size, gauge) Medication Preparation: • Vials and ampules • Reconstituting from powder • Two medications in one syringe
Parenteral Medication Administration Safety issues: • Use sharps containers • Never recap dirty needle
Parenteral Medication Administration • Use the correct site • Wrong site could mean wrong route • Be familiar with the technique required for the medication (e.g., heparin, insulin)
Parenteral Medication Administration Intravenous medications: • IV push • IV piggyback • Medicated drips
Avoiding Medication Errors • Use the six rights • Calculate doses carefully; double-check with a second RN • Watch for drugs with similar names • Watch for clients with same last names
Avoiding Medication Errors • Clarify illegible orders • Know and use your resources • Keep up with changes in medication orders