test one Flashcards
What is considered high alert drugs list 4 and why
high risk of causing injury when misused
anticoags-bleeding
insulin-low blood glucose and coma
narcotics and opiates-addiction and LOC/coma
sedatives- addiction and LOC/coma
What is the treatment for over dose with in one hour list 3
topical decontamination
prevention of absorption-gastric lavage or activated charcoal
neutralization- administer acid or base
what is the tx for overdose after one hour 3
hemodialysis, peritoneal dialysis, chelating agents, antidote
Two things to remember about activated charcoal
Mix-it is clumpy and may taste bad and assess bowel sounds first
Acetaminophen overdose procedure 3
Activated charcoal, watch liver labs, N-acetylcysteine as antidote
What would you do for asprin overdose? 5 plus two drugs
Activated charcoal, seizure precautions, thermal management, electrolyte replacement, alkalize urine, n-acetylcysteine amd mucomyst
What would you do for benzo overdose? 4
Activated charcoal, flumazenil 0.2mg titrate as needed, seizure
What would you do for opioid OD 2
Respiratory support, naloxone 0.4mg watch for re-admin
What should you do for a dig overdose?
Dig level right away and 6 hrs after, activated charcoal, fluid/e, digibind, watch dysrhythmias
Def for schedule 1 drug
No medical use, high pot for addiction, lack of accepted safety
Liver fail and drugs 4
slow drug metabolism-build up of drugs in system- toxic levels
Liver damage
reduced effectiveness with prodrugs which have to be metabolized in the liver
not making proteins- competing or build up=toxic
potency
Amount needed to have specific effect
efficacy
Maximum response that can be produced by the drug
steady state
quantity of drug eliminated in the unit of time equals the quantity of drug that reaches the systemic circulation in the unit of time
it takes about four half lives to reach a steady state
so 4X 1/2 (measured in time)=steady state
Half life
The time it takes for a drug to be at 50 percent in plasma levels
If you make a med error as a nurse what steps would you take
Assess the patient, implement interventions, notify with SBAR, fill out an incident report but do not document
What about ionized drugs and what does that mean?
They don’t pass through cell walls acid in base is ionized in excretion you need ionized
First pass effect
Straight to liver less at the site then
Inter-patient drug response
Dosing is based on the ED50 which is the dose required to elicit the desired response in 50 percent of patients
ED-therapeutic TD-toxic LD-lethal
Therapeutic index
Range between ED50 to TD50
Direct or physical interactions
IV crystals
Pharmacokinetics interactions
Alter the drug process absorption…
interactions Pharmacodynamics
Same or different sites
Combined toxicity
Toxic to the same organ