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Administration of Intravenous medications Chapter 11 Nursing

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Administration of Intravenous medications Chapter 11 Nursing 105 Advantages & Disadvantages of I.V. medications Advantages Provide direct access to the circulatory ... – PowerPoint PPT presentation

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Title: Administration of Intravenous medications Chapter 11 Nursing


1
Administration of Intravenous medications
  • Chapter 11
  • Nursing 105

2
Advantages Disadvantages of I.V. medications
  • Advantages
  • Provide direct access to the circulatory system
  • A route for drugs that irritate the gastric
    mucosa
  • A route for instant drug action
  • A route for delivering high drug concentrations
  • instant drug termination if sensitivity or an
    adverse reaction occurs
  • Route of administration in patients in whom use
    of the GI tract is limited

3
Advantages Disadvantages of I. V.
administration cont
  • Disadvantages
  • Drug interaction because of incompatibilities
  • Adsorption of the drug being impaired because of
    leaching into the I.V. container or
    administration set
  • Errors in compounding of medication
  • Speed shock
  • Extravasation of a vesicant drug
  • Chemical phlebitis

4
Common error in Administering Medications
  • Lack of knowledge about drugs
  • Errors in drug identity checking
  • Mistakes in calculations,
  • Improper use of pumps and controllers

5
Drug incompatibilities
  • Three broad categories
  • Physical occur when one drug is mixed with other
    drugs or solutions to produce a product that is
    unsafe for administration
  • Chemical a reaction of a drug with other drugs
    or solutions, which results in alterations of the
    integrity and potency of the active ingredient
  • Therapeutic an undesirable effect occurring in a
    patient as a result of two or more drugs being
    given concurrently

6
I. V. Medication delivery
  • IV medication can be delivered by
  • Continuous infusion
  • Intermittent infusion
  • IV push through a locking device

7
Subcutaneous infusion
  • Subcutaneous infusion route is used for patients
    unable to take medications by mouth and who have
    poor venous access

8
Intraspinal catheters
  • Epidural
  • Intrathecal
  • Both provide superior pain control, require small
    doses, and produce longer periods of relief
    between doses while preventing many systemic side
    effects
  • Alcohol must NEVER be used for site preparation
    or for accessing an intraspinal catheter. Only
    preservative-free medication can be delivered by
    the intraspinal routes.

9
FDA Drug Studies
  • Phase I clinical pharmacology and
    therapeuticsresearchers test the new drug or
    treatment in a small group of people. Determine
    an acceptable dosage
  • Phase II initial clinical investigationevaluate
    drug efficacy, conduct a pilot study, the drug is
    given to a larger population (100 to 300)
  • Phase II full-scale evaluation and treatmentthe
    drug is given to an even larger group (1,000 to
    3,000), the group is evaluated
  • Phase IV postmarketing surveillancedelineate
    additional information including the drugs
    risks, benefits, and optimal use.
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