midterm Flashcards
chemical medication name
provides the exact description of medications composition
generic medication name
the manufacturer who first developed the drug assigns the name ex. acedominiphone
trade medication name
also known as the brand name, the name under which a manufacturer markers the medication ex.tylonol
Medication classifications
-effect of medication on the body system
-symptoms the medication receives
-medications desired effect
medication forms
solid, liquid, buccal, sublingual, topical, parenteral, suppositories
absorption
passage of medication molecules into the blood from the site of administration
factors that influence absorption
-route of administration
-ability of a medication to dissolve
-blood flow to the site of administration
-body surface area
-lipid solubility
distribution of medication
circulation, membrane permeability, protein building
medication metabolism
-medications are metabolized into a less-potent or an inactive form
-biotransformation occurs under the influence of enzymes that detoxify, break down, and remove active chemicals
excretion
kidney, liver, bowel, lungs, exocrine glands
therapeutic effect
expected or predicted psychological responce
adverse effect
unintended, undesirable, often unpredictable
- side effect, toxic effect idiosyncratic reaction
side effect
predictable, unavoidable secondary effect
toxic effect
accumulation of medication in the bloodstream
idiosyncratic reaction
overreaction or underreaction or different reaction from normal
medication interactions
one medication modifies the action of another
medical dependence
physical and psychological
physical dependence
body shaking and symptoms bc your body needs it withdraws symptoms
psychological dependence
brain wants it for other reasons then need
biological half life
how long it takes for meds to hit peak
four major sites of injection
intradermal, subcutaneous, intramuscular, intravenous
other parenteral routes
epidural, intracathrcal, intraosseous, intrapleural, intracardiac, intraarticular
nasal instillation methods
spray, drops, tampons
pressurized metered-dose inhalers
require hand strength and hand-breath coordination, may be used with spacer
breath-actuated metered-dose inhalers
release depends on strength of patients breath on inspiration
dry powder inhalers
activated by patients breath, deliver more medication to the lungs
preparing an injection from an ampule
use a filter needle
before injecting, what do you need to know?
volume of meds, viscosity, and location of site, minimize pt discomfort
Subcutaneous injections
-placed into loose connective tissue under dermis
-arms, abdomen, thigh
-25-gauge at 45 degree angle
ex. insulin
intramuscular injections
ex. flu, penicillin
-90 degree angle
-23-gauge
-depending on age and size of pt, use different length and amount
psa-you can split into different injections
z-track method
pull back skin, inject and release the skin to “close it” so the meds don’t come back up
IM injection sites
-ventrogluteal site is #1 spot
-vastus lateralis, used for adults and children
-deltoid, not well developed in many adults and can cause injury if given
intradermal injections
ex. tb test
27 gauge
nurses administer medications intravenously by the following methods
-infusion of large volumes of IV fluid containers that contain medications mixed, labeled and dispensed by pharm ex. iv fluids
- injection of a bolus or small volume of medication through an existing IV infusion line aka iv push
-piggyback- infusion of a solution containing the prescribed medication and a small volume of iv fluid through an existing line
continuous iv fluids vs saline lock
continuous is connected to something where a saline has nothing
needle safety with intravenous administration- blunt tip must be capped when?
-adjusting dose
-removing air bubbles
-labeling syringe
-transporting medications
-blunt tip goes straight to Sharpe
osmosis
passive transport where the lower solute transport into higher solute for equal
osmolality
the concentration of solutes in body fluids
filtration
higher to lower
medical history assessment for volemia
-burns and heart failure can cause hypo bc it docent pump right
hypovolemic pt symptoms
small veins, low bp, eye bags, dark urine, delay of capillary refill, high heart rate