A substance administered for the diagnosis, cure, treatment, or relief of a symptom or for prevention of disease
Types of drug preparations
Aerosol spray
Caplet
Capsule
Cream
Elixir
Gel or jelly
Liniment
Lotion
Lozenges
Ointment
Paste
Pill
Powder
Suppository
Syrup
Tablet
Transdermal patch
Common mild allergic responses
Skin rash
Pruritus (itching)
Rhinitis (excessive watery discharge from nose)
Lacrimal tearing (excessive tearing)
Nausea, vomiting
Wheezing and dyspnea (shortness of breath)
Diarrhea
Routes of administration
Oral
Sublingual
Buccal
Rectal
Vaginal
Topical
Transdermal
Subcutaneous
Intramuscular
Intradermal
Intravenous
Inhalation
Oral route
Most convenient
Usually least expensive
Safe, does not break skin barrier
Administration usually does not cause stress
Inappropriate for clients with nausea, vomiting, unpleasant taste/odor, reduced GI motility, unable to swallow, before certain tests/procedures
Can discolor teeth, harm tooth enamel, irritate gastric mucosa
Sublingual route
More potent than oral as drug directly enters blood and bypasses liver
Drugs must remain under tongue until dissolved and absorbed, may cause stinging/irritation
Buccal route
Same as for sublingual
Rectal route
Can be used when drug has objectionable taste/odor, provides local therapeutic effect
Dose absorbed is unpredictable, may be perceived as unpleasant
Vaginal route
Provides local effect, may be messy and soil clothes
Topical route
Few side effects, drug can enter body through abrasions and cause systemic effects, leaves residue on skin that may soil clothes
Transdermal route
Prolonged systemic effect, few side effects, avoids GI absorption problems, onset faster than oral
Verify previous patch removed to avoid overdose
Subcutaneous route
Absorption is slower (advantage for insulin), must use sterile technique, more expensive than oral, can only administer small volume, can irritate tissues and cause pain, can produce anxiety
Intramuscular route
Can administer larger volume than subcutaneous, drug is rapidly absorbed
Can produce anxiety, must use sterile technique, breaks skin barrier
Intradermal route
Absorption is slow (advantage in allergy testing), amount administered must be small, breaks skin barrier, must use sterile technique
Intravenous route
Rapid effect, limited to highly soluble drugs, drug distribution inhibited by poor circulation
Inhalation route
Introduces drug throughout respiratory tract, rapid localized relief, can be used for unconscious clients
Drug intended for localized effect can have systemic effect, only for respiratory system
Types of medication orders
Stat order (immediate, one time)
Single order (one time at specified time)
Standing order (may be indefinite or for a set number of days)
PRN order (as needed)
Essential parts of a medication administration record/ticket
Full name of client
Date ordered
Name of drug
Dosage
Frequency
Route
Nurse's signature
Example medication order
Process of administering medications
1. Identify the client using at least two identifiers
2. Inform the client about the medication
3. Administer the drug as prescribed
4. Provide adjunctive interventions as indicated
5. Record the drug administration
Guidelines for safe drug administration
Question any illegible or incorrect orders
Be knowledgeable about medications
Use only clearly labeled medications
Do not use cloudy or discolored liquid medications
Calculate doses accurately
Administer only personally prepared medications
Identify client correctly
Do not leave medications at bedside
Take special precautions for certain medications
Record omitted medications and reasons
Report medication errors immediately
Check expiration dates
3 checks for safe medication administration
1. First check: Read MAR, verify client info, check label against MAR, check expiration
2. Second check: Recheck label against MAR while preparing medication
3. Third check: Recheck label on container against MAR before giving to client
Color coded medication ticket (BJRMH protocol)
Once daily (white)
Twice a day (pink)
Thrice a day (yellow)
Four times a day (blue)
Every 4 hours (blue)
Every 6 hours (green)
Every 8 hours (red)
As necessary (orange)
Ten rights in medication administration
Right medication
Right dose
Right time
Right route
Right client
Right client education
Right documentation
Right to refuse
Right assessment
Right evaluation
Commonly abbreviated terms for drug frequency
TID (ter in die - three times a day)
BID (bis in die - twice a day)
QID (quarter in die - four times a day)
3 Checks for Safe Medication Administration
1. Check the label on the container against the MAR before taking the medication
2. Check the label on the container against the MAR before returning it to storage
3. Check the label on the container against the MAR before giving the medication to the client
Color Coded Medication Ticket (BJRMH Protocol)
Frequency and corresponding color of ticket: Once daily (white), Twice a day (pink), Thrice a day (yellow), Four times a day (blue), Every four hours (blue), Every 6 hours (green), Every 8 hours (red), As necessary (orange)
Ten (10) Rights in Medication Administration
Right Medication
Right Dose
Right Time
Right Route
Right Client
Right Client Education
Right Documentation
Right to Refuse
Right Assessment
Right Evaluation
Commonly Abbreviated Terms - Drug Frequency
TID (ter in die - three times a day)
BID (bis in die - twice a day)
QID (quarter in die - four times a day)
OD (omni die - once a day or daily)
PRN (pro re nata - as needed or as necessary)
HS (hora somni - hours of sleep or at bedtime)
STAT (statim - immediately)
q 12 hrs (every 12 hours)
q 6 hrs (every 6 hours)
q 8 hrs (every 8 hours)
Commonly Abbreviated Terms - Route
p.o (per orem - orally)
SL (sublingually)
AS (auris sinistra - left ear)
AD (auris dextra - right ear)
AU (auris utraque - both ears)
OD (oculus dexter - right eye)
OS (oculus sinister - left eye)
OU (oculus uterque - each eye)
IM (intramuscularly)
SQ (subcutaneously)
ID (intradermal)
Methods of Calculating Dosages
1. Basic Formula: D = Desired dose, H = Dose on hand, V = Vehicle
2. Ratio & Proportion Method: Set up equation with unknown quantities on left, known quantities on right, multiply extremes and means
3. IV Incorporation: Calculate amount of medication to incorporate into IV solution
When handling a syringe, the nurse must avoid letting any unsterile object touch the tip, inside the barrel, shaft of the plunger, or shaft/tip of the syringe
Syringe Sizes
1to3ml - for injections, 10/20/50ml - for adding meds to IV solutions or irrigating wounds
Needles
Made of stainless steel, usually disposable
3 parts: Hub, Shaft, Bevel
Characteristics: Slant/length of bevel, Length of shaft, Gauge/diameter of shaft
Appropriate Needle Sizes
For subcutaneous injection: #24 to #26 gauge, 3/8 to 5/8 inch long
For intramuscular injection: #20 to #22 gauge, 1 to 1 1/2 inch long
For slender adults & children: Usually require shorter needle
Ampule
Glass container designed to hold a single dose of drug, has constricted neck
Preparing an Ampule
1. Break at constricted neck using ampule opener or sterile gauze
2. Aspirate fluid into syringe using filter needle/straw to prevent glass particles