hazards of drug use and prescribing Flashcards
what can go wrong with drug administration?
allergy -mild allergy -severe-anaphylaxis drug-drug interactions acute toxic reactions
what are the 4 stages of anaphylaxis?
swelling of tissues
airway narrows
reduction in circulatory blood vol.
circulatory failure if not addressed
what drugs interact due to protein binding?
warfarin & aspiring/NSAIDS
what drugs interact due to metabolism?
warfarin, simvastatin
erythromycin
fluconazole
carbamazepine
what happens in acute toxic reactions?
unexpected and potentially life threatening
bone marrow suppression
hepatotoxicity & biliary stasis
acute nephrotoxicity
what are the 3 main prescribing errors?
the decision to prescribe -would dif tx be better prescribing the wrong drug -adverse drug reaction -ineffective/less effective incorrectly completing the rx
what should be on a rx?
px name, address, age (<18) DOB, CHI number number days tx drug to be prescribed drug formulation & dosage instruction of quality to be dispensed instructions to give tp px signed by presciber
how long is a rx valid for?
6 months
what are the requirements when writing a rx?
key px info must be legible
avoid abbreviations
full instructions in ink
legally dentist must sign
what is usually added to a private rx?
GDC number
what are the advantages of written instructions when instructing a px?
stressed px may not remember
language issues may prevent proper understanding
-multilingual, large print
contact number for px issues with medicine
what standard advice should be given to px?
take drugs at correct time and finish course
unexpected reactions: stop and contact prescriber
known side effects
keep medicines safe