Pharmacology: Medication Administration Notes (CCNA/CCMA Focus)

Scope of Practice and Responsibilities

  • Medical assistants must know the use, interactions, adverse reactions, and contraindications of medications.
  • Work within and know your scope of practice; read and research current employer requirements.
  • Be familiar with abbreviations used in medical prescribing, routes of medication administration, and forms of medication.
  • Be alert to changes in a patient’s condition that affect drug therapy.
  • At every visit, ask patients about drugs, drug allergies, and also food allergies (some meds may be food-based or interact with foods).
  • Maintain an accurate medication list in the patient’s record and differentiate clearly between allergies and side effects.

Medication Forms and Routes

  • Oral medications (slowest absorption among many routes) come in multiple forms:
    • Capsules, Caplets, Elixirs, Emulsions, Gels, Lozenges, Solutions, Syrups, Suspensions, Tablets.
    • Important note: Do not crush or break tablets unless the tablet is scored.
    • Definition: Scored means a line is printed on the tablet to allow halving the dose. Do not cut non-scored tablets yourself.
  • Tinctures are another form of oral medication.
  • Topical medications include:
    • Creams, Foams, Liniments, Ointments, Patches, Powders, Sprays, Lotions.
    • Patches require careful maintenance to ensure continuous dosing.
    • Patches are maintenance medications; to switch dosage, place the new patch and leave the old one in place for at least
      30 ext{ minutes} to allow switchover; then remove the old patch.
    • Patch sites commonly include the chest, back, abdomen, and hip; patients may change location as appropriate.
  • Inhalation (including aerosol, mist, steam) delivers drugs to the lungs; commonly used for COPD or asthma (inhalers).
  • Ophthalmic and aural (optic/otic) medications come as eye/ear drops or sprays.
  • Vaginal medications include creams, foams, gels, ointments, and suppositories.
  • Rectal administration commonly uses suppositories.
  • Injectable routes cover:
    • Intramuscular (IM): into deep muscle tissue.
    • Subcutaneous (SubQ or subcut): into the adipose (fat) layer beneath the skin.
    • Intradermal (ID): into the dermis (most common is tuberculin/PPD Mantoux test).
    • Intravenous (IV): injection into a vein; fastest absorption but not always within the scope of practice for CCNAs/CCMAs depending on role.
    • IV administration is outside the CCNA scope for many settings and requires physician orders.
  • Buccal and sublingual routes:
    • Buccal: medication placed against the cheek for absorption through the buccal mucosa.
    • Sublingual: medication placed under the tongue for rapid absorption into the bloodstream.
  • Enteral vs. parenteral terms:
    • Enteral: absorbed through the gastrointestinal tract.
    • Parenteral: outside the GI tract (injections, etc.).
  • General note: Any administration requires a physician’s order; preparation and delivery must follow orders exactly.

Intradermal Tuberculosis Test (Mantoux) Details

  • ID injections are used for Mantoux testing and create a wheel (a small raised bump) under the skin.
  • Do not apply oils or ointments to the wheel; avoid scratching it.
  • Reading the results occurs after 24 ext{ to } 48 ext{ hours}; check for the wheel’s presence and size.

Injection and IV Details; Scope Considerations

  • Intramuscular (IM): deep muscle tissue injection.
  • Subcutaneous (SubQ): injection into the fatty layer under the skin.
  • Intradermal (ID): into the dermis (PPD/Mantoux uses this method; wheel formation).
  • Intravenous (IV): fastest onset but not always within the CCNA scope; typically requires physician orders.
  • Transdermal patches are a form of topical delivery with systemic absorption.
  • For any patch: place new patch and wait ~30 minutes before removing the old patch to ensure proper dose switchover.
  • Sites for patches include chest, back, abdomen, and hip; patients can rotate sites.

Preparing for Administration: Checks and Safety

  • Always verify the correct site and align with the patient’s chart, allergies, contraindications, and current medications.
  • If no allergies are listed, ask the patient directly about medication allergies and food allergies.
  • Document any new allergies in the chart per office protocol.
  • Review the patient’s current medication list (both OTC and prescribed) to verify dosage and appropriateness.
  • The “four eyes” rule: have another clinician verify the dosage/medication to reduce errors (two sets of eyes).
  • Answer patient questions about why they are receiving the medication and what it is.
  • Administer only medications with a physician’s orders; verbal orders are not acceptable.
  • All orders must be in writing; prepare medications in a well-lit, distraction-free area to prevent errors.
  • Triple-check medication:
    • Check when taking from storage against the written order.
    • Check again during preparation.
    • Check one final time before administration.
  • If a patient refuses the medication, document the refusal (AMA - against medical advice is the formal term when a patient refuses treatment) and follow local policy.
  • Do not leave a prepared medication unattended; never administer a medication that you did not prepare yourself.
  • Do not accept or administer medication brought by a patient or another staff member without verification.
  • Identity verification: use two-factor identity checks (e.g., full name and date of birth; or last four digits of SSN) cross-referenced with the chart.
  • A physician must be present for drug administration in many settings; monitor patient for adverse or allergic reactions.
  • After administration, observe the patient for at least 15 ext{ minutes} for signs of adverse reactions.

Rights of Medication Administration

  • Basic rights (do not compromise):
    • Right patient: verify identity.
    • Right drug: verify name and formulation.
    • Right dose: verify amount against the order (three verifications).
    • Right route: confirm administration route (oral, IM, subcutaneous, etc.).
    • Right time: administer at the correct time according to the order.
  • Additional rights (patient-centered):
    • Right to know: explain the purpose of the medication to the patient.
    • Right to refuse: respect patient’s decision and document appropriately.
    • Right to technique: accommodate patient preferences for injection site or method if feasible.

Calculation, Preparation, and Labeling of Medications

  • This process teaches how to calculate and prepare liquid and solid doses and administer medications.
  • Steps include selecting the correct meds from storage and checking each label against the order (name, form, route, and expiration).
  • Use drug reference information and the provider’s order to verify details.
  • If the order does not specify the exact number of tablets or amount of liquid, calculate the dose from the order and labels; verify with a peer before preparing.
  • Hand hygiene: wash hands or use hand sanitizer before handling medications.
  • Assemble all required supplies for preparation.
  • Labeling: with a marker, write the medication name and dose on cups but do not write over measurement markings; indicate any assessments needed if appropriate.
  • Perform the second medication check (label against order and confirm name, form, route, and dose).
  • For solids: remove cap, pour the correct number of tablets into the cap, return any extras to the bottle if too many; then pour into the cup.
    • Once tablets are poured into the cup, they are no longer sterile and cannot be returned to the bottle.
  • For liquids: place the plastic cup on a level surface; remove bottle cap and set it aside; keep the bottle label away from you; read at eye level; fill until the bottom of the meniscus reaches the required volume; replace the bottle cap without contaminating the bottle or cap; do not return excess to the bottle.
  • If you pour too much, flush the excess down the sink; avoid pouring unused liquid back into the sterile bottle.
  • Third label check: verify again that the name, form, route, and amounts match the order.
  • Place prepared medication cups on a tray and clean the area.

Exam Room Procedure: Patient Interaction and Verification

  • Before entering the exam room: knock, wait a moment, and greet the patient.
  • Identify yourself: e.g., “Hello, Jen. My name is Tori. I’m Doctor Smith’s medical assistant.”
  • Verify patient identity: full name and date of birth; confirm that patient’s information matches the order and chart.
  • Ask about allergies and document accordingly; ask about known allergies to medications or antibiotics.
  • Provide appropriate education and documentation in the record.
  • Example interaction (scenario): patient Jeff Repentz responds with full name and date of birth; ask about allergies and confirm information.

Safety, Ethics, and Documentation in Practice

  • Do not administer any medication without a doctor’s written order; verbal orders are not acceptable.
  • Maintain objectivity and avoid personal biases; respect patient autonomy and decisions (AMA when applicable).
  • Documentation should be accurate, timely, and complete for all steps of the medication process.
  • When in doubt, ask questions and proceed with caution to avoid medication errors.
  • Emphasize patient safety by ensuring proper technique, asepsis, and adherence to protocols.

Practical Implications and Real-World Relevance

  • Precise medication administration is critical to patient safety; errors can be fatal.
  • Clear understanding of routes, forms, and pharmacokinetics informs safer prescribing and administration.
  • Maintaining up-to-date knowledge of scope of practice and institutional protocols prevents professional violations.
  • Effective communication with patients improves adherence and outcomes.

Key Concepts to Remember (Recap)

  • Distinct medication forms and routes (oral, topical, inhalation, ophthalmic/otic, vaginal, rectal, injectable, buccal, sublingual).
  • Enteral vs parenteral absorption and implications for onset and monitoring.
  • The importance of scored tablets and the risk of breaking non-scored tablets.
  • Patch administration and the switchover timing (approximately 30 ext{ minutes}).
  • Mantoux test specifics: ID injection, wheel formation, and 24–48 hour evaluation window.
  • The three medication checks and the four eyes principle to minimize errors.
  • The three basic rights and the three additional rights guiding safe practice.
  • Documentation of refusals (AMA) and ensuring patient choices are respected and recorded.
  • The imperative to verify identity using two-factor checks and to confirm allergies and medication lists.
  • Step-by-step preparation, labeling, and dose verification to prevent dosing errors.