Final Exam Flashcards
transdermals
provides more consistent blood levels with no GI upset
pharmacogenetics
the study of genetic factors that influence an individuals response to a specific drug
pharmacokinetics
the process of drug movement throughout the body that is necessary to achieve drug action
pharmacology
study or science of drugs
6 rights of medication administration
right patient right drugright doseright route right time right documentation
OTC drugs
over the counter drugs: drugs that have been found safe and appropriate for use without the need of a health care provider
Pharmacodynamics
the study of the effects of drugs on the body
What are the 3 types of medications that need to be recorded for a patients medication list?
prescription drugsOTC drugs CAMs
What are the things that OTC drugs must provide on their label?
active and inactive ingredientspurpose of productuse of product warnings dosage instructions (who can use it and how often)
drug
any chemical that affects the physiological process of a living organism
What must a patient do before taking CAMs?
check with their HCP if the CAM can be mixed with their prescription drugs
chemical name of a drug
describes the chemical structure of the drug
generic name of a drug
official, nonproprietary name (acetaminophen)
brand/trade name of drug
proprietary name (Tylenol)
generic brand drugs
contain the same active ingredients, but may have inactive/inert ingredients to change the tablet shape and control release time
What is important when using a generic drug?
the health care provider needs to say on the prescription if using the generic brand is okay, or if the patient needs to use name brand
extended release, enteric coated, time release capsules/tablets
should NEVER be crushed or split in half, they must be swallowed whole
What are the rules for sublingual and buccal drugs?
the drug should remain in place until it is fully absorbeddo not let patient eat or drink when the medication is in place
What are the pharmacokinetic phases?
absorption distributionmetabolism excretion
absorption
movement of the drug from the GI tract into the bloodstream after administration
distribution
movement of drugs from circulation into body tissues
metabolism (biotransformation)
body chemically changes drugs to a form that can be excreted
potency
Amount of drug necessary to elicit a specific physiological response to a drug
excretion
elimination of drugs from the body
What is the first pass effect?
After oral administration, many drugs are absorbed intact from the small intestine and transported first via the portal system to the liver, where they undergo extensive metabolism, therefore usually decreasing the bioavailability of certain oral medications.
bioavailability
bioavailability
percent of administered drug available for activity what reaches systemic circulation (blood stream)
What happens when 2 highly protein bound drugs are administer together?
the drugs will compete for protein binding sites and this will lead to an increase in the free drugs of the drug that had the lower percent of protein binding
free drugs
can exit blood vessels and reach their site of action causing pharmacological response (too high of free drug accumulation can cause side effects, adverse effects, or toxicity)
half life (t1/2)
time it takes for the amount of drug in the body to be reduced by half
loading dose
a large initial dose given to achieve a rapid minimum effective concentration in the plasmatherapeutic effects can be obtained while steady state is reached
What lab test help determine if liver function is good?
aspirate transaminase (AST)alanine aminotransferase (ALT) alkaline phosphate (ALP)
What helps determine kidney function?
creatinine clearance BUNGFR
What labs are taken to test kidney function?
creatinine (CR)blood urea nitrogen (BUN)
therapeutic index
relationship between therapeutic and toxic dose
onset
time it takes for drug to reach minimum effective concentration (therapeutic response)
peak
highest concentration in the blood
duration
length of time for a drug to exert a therapeutic effect
peak drug level
the highest plasma concentration of a drug at a specific timeindicates the rate of absorption
trough drug level
the lowest plasma concentration of a drugmeasures the rate at which the drug is eliminated
drug toxicity
occurs when drug levels exceed the therapeutic range
tolerance
decreased responsiveness of a drug over the course of therapy (this individual would require a higher dosage of a drug to achieve the same therapeutic response)
additive effects
sum of the effects of the two drugs
synergistic effect
effect of the two drugs given together is much greater than effects of either drug alone
drug induced photosensitivity
skin reaction caused by exposure to sunlight
genomics
study of all the genes in the human genome together, including their interactions with one another with one another, their interactions with the environment and the influence of other cultural and psychosocial factors
What is the purpose of knowing a patients genomic information?
so that treatments can be tailored/personalized per patient
people of European descent
poor metabolizers of antidepressants, anti psychotics, cardiovascular agents, and isoniazid which can lead to toxicity
people of African descent
diminished therapeutic effects from beta blockers, Ace inhibitors and warfarin
people of Native American descent
increased vasomotor response to alcohol
people of Asian descent
diminished therapeutic effects of codeine; rapid metabolizers of isoniazid
people of Middle Eastern descent
many genetic diseases such as thalassemia
What do you document after administering a medication/drug?
name of the drugdoseroutetime and date nurse initials or signature
When should you check your drug label and how many times?
3 times:at contact with the dug bottlebefore measuring the drugafter measuring the drug
What is the culture of safety?
ANA encourages organizations to avoid punitive approaches in drug error reporting
What is Just Culture?
fair and not punitive encourages reporting of errorsgoal is to repair system
What is the focus of the Joint Commission? What did they develop
focuses on healthcare safety problems and resolutions TJC developed National Patient Safety Goals
What is the strongest form of warning?
Black box warning label
What is the first thing you think about when a medication error is made?
THE PATIENTS SAFETY! do not leave the patient
informed consent
clients have right to be informed and participation is voluntary
autonomy
right to self-determination
beneficence
obligation of RN to protect the client from harm (do good to patient)
justice
equitability or equal selection of research participants
the Federal Food, Drug, Administration Cosmetic Act
act that empowered the FDA to ensure a medication is safe prior to marketing
the Harrison Act
increased record keeping for narcotics and requires a prescription for a client to be administered narcotics
Pediatric Research Equity Act
act that authorized the FDA to require drug manufactures to test drugs and biological products for safety and effectiveness in children”children are NOT small adults
Tuskegee Experiment
Infamous historical study in which core values of research (respect for persons, beneficence, and justice) were violated - studied the effects of syphilis in african-american men if left untreated
Nuremberg Trials
Trials of the Nazi leaders, showed that people are responsible for their actions, even in wartime, cannot use prisoners of war for experiments NUREMBERG CODE OF ETHICS
Thalidomide
drug was marketed to help with nausea “safely” in pregnancy, can produce a variety of malformations of the limbs (stunted limbs) , eyes, ears, and heart.
epinephrine classification
Sympathomimetic: adrenergic agonist
epinephrine action
alpha 1: increases BP
beta 1: increases HR
Beta 2: promotes bronchodialation
epinephrine uses
anaphylactic shock and cardiac arrest
epinephrine adverse effect
tissue necrosis at IV site
epinephrine lab interactions
increase blood glucose
epinephrine food interactions
caffeine containing herbs (cola nut, guanara, mate, tea, coffee) increase stimulant effect
epinephrine nursing implications
watch IV sites and monitor blood glucose in diabetic patients
epinephrine drug interactions
increased effects with TCAs and MAOIs
albuterol classification
B2 adrenergic agonist
albuterol action and uses
causes bronchodialation
treatment of asthma
albuterol lab interactions
may increase glucose levels (stimulates gluconeogenesis in the liver)
albuterol nursing implications
monitor pulmonary function
bethanechol
Urecholine
Bethanechol (Urecholine) classification
cholinergic agonist: parasympathomimetic
Bethanechol (Urecholine) uses
Urinary retention and neurogenic bladder
Bethanechol (Urecholine) contraindications
intestinal and urinary tract obstruction, IBS, peptic ulcer
pt w asthma (as it causes bronchoconstriction
Bethanechol (Urecholine) nursing implications
baseline VS (IF BP IS LOW, CANNOT ADMINISTER)
monitor AST, bilirubin, amylase, lipase
atropine classification
anticholinergic
atropine uses
pre-op to reduce salivation so that you do not aspirate
increase HR for Bradycardia
atropine side effects
anticholinergic SE (dry mouth, photophobia, urinary retention)
atropine contraindications
glaucoma, obstructive GI disorders
atropine nursing implications
provide mouth care, tell pt, to wear sunglasses, chew gum or suck on candies to help with dry mouth
alprazolam
Xanax
Alprazolam (Xanax) classification
Benzodiazepine anxiolytic sedative hypnotic
Alprazolam (Xanax) use
anxiety and panic disorder
Alprazolam (Xanax) food and CAMs
food: grapefruit increases effects, green tea decreases effect
CAMs: do not combine with kava kava, valerian, chamomile
antidote for Alprazolam (Xanax)
Flumazenil
Alprazolam (Xanax) nursing implications
gradually withdrawal/wean off
antidote: flumenazil
instruct not to drive
lorazepam
Ativan
Lorazepam (Ativan) classification
Benzodiazepine anxiolytic sedative hypnotic
Lorazepam (Ativan) use
anxiety
status epilepticus
sedation induction for insomnia
antidote for Lorazepam (Ativan)
flumazenil
Lorazepam (Ativan) nursing implications
taper off
no driving or operating machinery
no alcohol (will further depress CNS)
Zolpidem
Ambien
Zolpidem (Ambien) classification
nonbenzo
sedative hypnotic
Zolpidem (Ambien) use
insomnia
Zolpidem (Ambien) side effects
hangover (residual sedation)
anterograde amnesia, nightmares, binge eating
Zolpidem (Ambien) nursing implications
teach patient to use non-harm method for sleep first
take medication 15-30 mins before bedtime
suggest patient to urinate before bed to prevent sleep disruption
do not drive
phenytoin
Dilantin
Phenytoin (Dilantin) classification
Anticonvulsant or antiepileptic drug/ anti seizure
Phenytoin (Dilantin) side effects
GINGIVAL HYPERPLASIA
Phenytoin (Dilantin) therapeutic range
10-20 mcg/mL
Phenytoin (Dilantin) contraindication
pregnancy (teratnogenic)
Phenytoin (Dilantin) drug interactions
decreased effects with antacids, folic acid, calcium
Phenytoin (Dilantin) CAMs interaction
ginkgo decreases effect
Phenytoin (Dilantin) nursing implications
monitor therapeutic serum levels (10-20 mcg/mL)
tell pt. to use extra contraceptive method
must be taken at the same time everyday, lifelong
fluoxetine
Prozac
Fluoxetine (Prozac) classification
SSRI
Fluoxetine (Prozac) use
depression
Fluoxetine (Prozac) food interaction
grapefruit juice can lead to toxicity
Fluoxetine (Prozac) CAMs interactions
St. Johns Wort can increase risk of serotonin syndrome
Fluoxetine (Prozac) drug interactions
alcohol and other CNS depressants increase respiratory depression
MAOIs and TCAs increase risk of serotonin syndrome
Venlafaxine
Effexor
Venlafaxine (Effexor) classification
SNRI
Venlafaxine (Effexor) use
depression, generalized anxiety, social and panic anxiety
Venlafaxine (Effexor) drug interaction
SSRI (may increase risk of NSM)
MAOIs (hypertensive crisis and death
St. Johns Wort (serotonin syndrome)
Tricyclic Antidepressants (TCAs) use
major depression
if it doesn’t work, then use an MAOI
Monoamine Oxidase Inhibitors (MAOIs) food interactions
hypertensive crisis from tyramine (aged cheeses, coffee, yogurt, red wine, sausage, cream, chocolate, bananas, beer)
Monoamine Oxidase Inhibitors (MAOIs) CAMs
FATAL w St. Johns Wort
Cyclobenzaprine
Flexeril
Cyclobenzaprine (Flexeril) classification and use
muscle relaxant
used for short term treatment of muscle spasm
Salicylate
aspirin
Salicyclate (aspirin) classification and action
nalgesic- antiinflammatory; NSAID
inhibits COX 1 and COX 2
Salicyclate (aspirin) therapeutic serum level
15-30 mg/mL
Salicyclate (aspirin) adverse effects
tinnitus
GI ulceration and bleeding w prolonged use
increase bleeding risk
Salicyclate (aspirin) contraindications
do not give to pt who is below the age of 19 if they have flu symptoms- can cause Reyes syndrome
Ibuprofen
Motrin