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Nursing Math: Dosage and Calculations
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Routes of Administration

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Nursing Math: Dosage and Calculations | Registered Nurse (RN) School Study Aid

Routes of Administration
9 Picmonics to Learn | 19 mins
Routes of Administration Part One
Enteral Administration
Oral
Sublingual
Buccal
Rectal
Tubes
Topical or Mucous Membrane Administration
Transdermal
Drops/Spray
Vaginal
Inhalation Administration
Inhalation
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2 mins
Routes of Administration Part Two (Parenteral)
Parenteral Administration
Intradermal
Subcutaneous
Intramuscular (IM)
Intravenous
Epidural
Intrathecal
Intraosseous
Intraperitoneal
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2 mins
Needle Sizes and Uses
Adjust Size Based on Height/Weight
Subcutaneous Injections
3/8 or 5/8 inch
Intramuscular (IM)
1-1.5 inches
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1 min
Parenteral Medications
Intravenous (IV)
Fast-Acting
Greatest Risk
Intramuscular (IM)
Common Injections Sites: Deltoid, Vastus Lateralis, Ventrogluteal, and Dorsogluteal Muscles
Absorbed Fast
Vaccines and Epinephrine
3 mL Limit
Subcutaneous (SC)
Common Injections Sites: Abdomen, Arm, and Thigh
Absorbed Slower
Insulin and Hormones
Small Volumes
Intradermal (ID)
Common Injection Sites: Back of Forearm and Upper Back
Longest to Absorb
Tuberculosis and Allergy Testing
Under 0.5 mL
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5 mins
Total Parenteral Nutrition (TPN)
Mechanism
Nutrition Given Outside GI
Side Effects
Hyperglycemia
Hyperlipidemia
Refeeding Syndrome
Nausea and Vomiting
Considerations
Slow IV Infusion
Use Large Central Vein
No Added Meds to TPN Line
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2 mins
Intramuscular Medication (IM) Administration
Risks
Injury to Nerves, Bone, and Blood Vessels
Sites
Deltoid
Vastus Lateralis
Ventrogluteal
Nursing Considerations
Selection of Needle Length
Aseptic Technique for Drawing Up
Z-Track
90 Degree Angle
Max Amount (2-5 mL Adult, 1 mL Child)
Techniques to Reduce Pain
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2 mins
Intradermal Medication Administration
SKIN TESTING
Tuberculin Screening
Allergy Testing
INTRADERMAL SITES
Dermis
Inner Forearm or Upper Back
INTRADERMAL Injection
1mL Syringe (26 or 27 Gauge Needle)
5 to 15 Degrees
Small Bleb
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2 mins
Ear Drops Medication Administration
Indications
Earwax Buildup
Ear Infections
Pulling The Pinna
Child - Back and Downward
Adult - Back and Upward
Procedure
Side-Lying with Ear Up
Instill Medication
Stay for 2-3 Minutes
Nursing Considerations
Room Temperature
May Massage Tragus
Perforated Eardrum
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2 mins
Eye Medication Administration
Procedure
Supine with Neck Hyperextended
Wash Away Crusts
Cotton Ball on Cheekbone
For Ophthalmic Drops
Instill Drops into Conjunctival Sac
Repeat if Missed or Patient Blinks
5 Minutes Before 2nd Medication
For Ophthalmic Ointment
Thin Stream Along Inner Edge
Inner Canthus to Outer Canthus
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2 mins

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