Pre-med Flashcards
what are the 3 components of an ideal anesthetic technique
analgesia, stability of organs/systems and loss of consciousness
what is general anesthesia
reversible process of depression of the CNS with drugs that produce unconsciousness
what is a balanced technique
administration of different drugs together to create the ideal anesthetic state
what is the objective of an ideal balanced technique
uses less of each drug than if the drug were administered alone, thereby increasing the likelihood of desired effects and reducing the likelihood of its side effects
what do we want to achieve with pre-medication (3)
sedation, anxyolisis, muscle relaxant
why do we premed patients (9)
-Decrease stress and facilitate patient handling
-Staff safety (especially important in aggressive patients and wildlife)
-Facilitate restrain and catheter placement
-Provide preventive analgesia prior to surgery
-Facilitate monitoring and pre-oxygenation before induction
-Decrease doses of induction agents
-Smoother anesthetic inductions
-Lower inhalant requirements
-Better recoveries for short procedures
what are some advantages of giving preventative analgesia prior to surgery
-Reduction of noxious stimuli reaching the central nervous system during surgery
-Reduction of peripheral inflammation
-Reducing the dose of anesthetic required during surgery
-Less analgesia needed post-op
-More rapid hospital discharge
what is the purpose of giving preventative analgesia prior to surgery
attempt to block nociceptive input through the application of several analgesic agents, acting at different sites (multimodal analgesia) starting prior to surgery and continuing for several hours or days following surgery
dose dependent combiniation of propofol and alfaxalone
dose dependent hypotension and respiratory depression
dose dependent issue with inhalants
dose dependent vasodilation and hypotension
what are some disadvantages of pre-meding patients? (4)
-possibly cost; depending on drug used since you decrease the amount of induction and maintenance drugs
-time; onset of action is slower when IM or SQ routes are used
-some sedatives arent appropriate for sick patients (There is no safe or perfect premedication protocol acceptable for ALL ANIMALS, All drugs cause side effects that are usually dose-dependent)
-Heavy sedation protocols carry higher risk of cardiovascular side effects, respiratory depression or airway obstruction
what type of drug do we use to achieve sedation/anxyolisis
anesthetic agent
what type of drug do we use to achieve muscle relaxation
sedative agent
what type of drug do we use to achieve analgesia
opioid
what are some features of an ideal pre-anesthetic protocol (5)
-Provide reliable and consistent sedation, anxiolysis and/or immobilization
-None or minimal side effects
* Cardiorespiratory
* Other systems
-Provide adequate analgesia
-Reversible
-Reduce the dose of other sedative, anesthetics