Week 1 Quiz Flashcards
Minimum Effective Concentration [MEC]
the minimum plasma concentration of a drug needed to produce the desired pharmacologic response
Bioavailability
-percent of administered drug that actually makes it to the systemic circulation
First-Pass Effect
- liver metabolizes PO drug
- results in a reduced concentration of the active drug once it reaches the systemic circulation
Blood Brain Barrier [BBB]
highly selective w distribution
-screens out a lot of chemicals
Therapeutic Action
intended effects of the drug
Adverse Reaction
nontherapeutic + unintended effects of the drug that occur at a therapeutic dose
- may be predictable, well known, or unpredictable
- range fr annoying, tolerable to life threatening
Allergic Reaction
most severe type of adverse rxn
-range fr itching + rash to anaphylactic shock
Anaphylaxis
exaggerated response of body’s immune system to a drug
- massive release of histamine+ other chem mediators into into body
- swelling of eyes, face, mouth, throat, difficulty breathing wheezing, rapid HR, low BP, cardiac arrest
Contraindication
- reasons why you should HOLD the drug
- potential to cause serious life-threatening ADR
- ALL DRUGS ARE CONTRAINDICATED IF PATIENT IS ALLERGIC
Therapeutic Classification
“WHY”
ex) analgesic to relieve pain, antihypertensive to lower BP
Pharmacologic Classification
“HOW”
ex) opioids, cholinergic, anticholinergic, benzodiazepine
Chemical Name
scientific name based on the compound’s chemical structure
Generic Name
the official name a company gives a drug they developed
- not capitalized
ex) Tylenol is the brand name, acetaminophen is the generic
Trade [Brand] Name
the drug’s commercial or proprietary name
- capitalized + in parenthesis
- may vary depending on the company producing it
ex) Tylenol is the brand name, acetaminophen is the generic
Addiction
harmful behavior associated with substance abuse
-craving
Dependence
the body requires a specific dose of a particular drug, such as a prescription opioid, in order to prevent withdrawal symptoms
7 Methods of Action of Drugs
1 stimulation 2 depression 3 irritation 4 replacement 5 cytotoxic 6 antimicrobial 7 mod of immune status
Tachyphylaxis
an acute, sudden drop in response to a drug after its administration
i.e. a rapid and short-term onset of drug tolerance
Additive Effect
when the combined effect of 2 drugs you give together is THE SAME as each drug you give alone in same doses
- 1+1=2
Synergistic Effect
when the effect of 1 drug is GREATER if you give it w another drug
- 1+1=3
Controlled Substance
medications that can cause physical and mental dependence, and have restrictions on how they can be filled and refilled
-regulated + classified by the DEA (Drug Enforcement Admin
Teratogenic drug classification
drugs/foods that a pregnant woman can ingest + can cross placenta into fetus
- can cause malformation of developing fetus
- CATEGORY D = possible risk
- CATEGORY X = relationship w fetal malformation
Therapeutic Range / Index
concentration of drug in the blood serum that produces the desired effect wo toxicity
Plasma HALF-LIFE of drug
amount of time it takes for 50% of blood concentration of drug to be eliminated fr body
Loading dose
an initial higher dose of a drug that may be given at the beginning of a course of treatment before dropping down to a lower “maintenance dose”
-shoots up the drug in blood quickly
Maintenance dose
maintenance dose is the maintenance rate [mg/h] of drug administration equal to the rate of elimination at steady state
Toxicity
occurs when a client receives drugs in excessive dosages resulting in negative physiologic effects
-can also happen w impaired excretion or metabolism leads to a build up
Agonist
drugs that bind to receptors + precipitate a GREATER THAN TYPICAL response
Antagonist
drugs that bind to receptors + either BLOCK (noncompetitive) or precipitate a LESSER THAN TYPICAL response (competitive)
Antidote
a substance that can counteract a form of poisoning
- drugs can be prescribed as a treatment for another drug’s side effect
ex) naloxone for opioids
Advantages + Disadvantages of Over the Counter Drugs
- enable people to relieve many annoying symptoms and to cure some diseases simply and without the cost of seeing a doctor
- busing OTC drugs can lead to health problems including memory loss, kidney failure, heart problems and death
Rights of Drug Administration
1 drug 2 patient 3 dosage 4 route 5 time 6 reason 7 assessment 8 documentation 9 response 10 to education 11 to refuse
Drug Administration Abbreviations
PO-oral Q- every AC- before meal PC- after meal PRN-as requested/needed
Medication Reconciliation
process of identifying the most accurate list of all medications that the patient is taking, including name, dosage, frequency, and route, by comparing the medical record to an external list of medications obtained from a patient, hospital, or other provider
Polypharmacy (causes + interventions)
the simultaneous use of multiple drugs to treat a single ailment or condition