Adverse Reactions and Med Errors Flashcards
adverse drug reaction (ADR)
any noxious, unintended and undesired effect that occurs at normal drug doses
side effect
nearly unavoidable secondary drug effect produced at therapeutic doses; generally predictable
toxicity
degree of detrimental physiology effects caused by excessive drug dosing; respiratory depression from morphine or hypoglycemia from insulin
-can also be used to describe side effects from chemo
allergic reaction
immune response; there must be prior sensitization of the immune system
-PCNS likely to cause anaphylaxis, NSAIDS/sulfas other common drugs
idiosyncratic effect
uncommon drug response resulting from a genetic predisposition
example: people with G6PD deficiency will have RBC hemolysis when taking ASA/sulfa drugs and it can be life-threatening
paradoxical effect
the opposite of the intended drug response; some kids get hyper after taking antihistamines for sleep aid
iatrogenic disease
disease that occurs as the result of a treatment OR disease produced by drugs. Antipsychotic drugs can cause SIADH or conditions that mirror Parkinson’s
physical dependence
the body has adapted to drug exposure in a way that an abstinence syndrome will result if the drug is stopped.
examples: opioids, ETOH, barbs, amphetamines
carcinogenic effect
ability of certain meds and enviro chemicals to cause cancer
teratogenic effect
drug-induced birth defect
examples of hepatotoxic drugs:
statins, oral anti-diabetics, anti-sz, anti-fungals, anti-gout, anti-psychotics, anti-microbial, TB meds, immunosuppressants, anti-retroviral, Tylenol
What is the QT interval
measure of time required for ventricles to depolarize after each contraction
if prolonged, patients can develop torsades
Examples of drugs that can cause QT prolongation:
anti-dysrhythmias, ACE-inhibitors, calcium channel blockers, abx, anti-fungals, anti-depressants, anti-psychotics, anti-emetics, anti-cancer, ADHD, nasal decongestants
black box warning
strongest safety warning a drug can carry and still remain on the market
What is REMS
Risk Evaluation and Mitigation Strategies
- a plan to minimize drug-induced harm
- most drugs only require a MedGuide but some like accurate requires an iPledge