N365 Surgery Medications Flashcards
What class of drugs is Nitrous Oxide?
Gaseous General Anesthetic
What is the general action of Nitrous Oxide?
Produces narcosis, analgesia and amnesia to varying degrees by causing progressive depression of the CNA; GABA receptor agonist, opiod agonist.
What are ADR’s for Nitrous Oxide?
Free of major toxicities when given WITH OXYGEN. if not mixed with enough oxygen it can cause a compromise of normal tissues. Post-op nausea and vomiting.
What is the ideal use of Nitroud Oxide?
Induction agent.
What is the minimal amount of oxygen that must be mixed with Nitrous Oxide?
30% at least
What class of drugs is Isoflurane (Forane)?
Inhaled general anesthetic, volatile.
What about Isoflurane (Forane) makes it’s onset slower?
It’s more soluble in blood, intercellular fluid, and fatty tissue and therefore causes a slower onset.
What is the action of Isoflurane (Forane)?
Progressive depression of CNS (exact action unknown). GABA glutamate receptor agonist.
What are the main ADR’s of Isoflurane (Forane)?
Hypotension from vasodilation, Significant respiratory depression, can trigger malignant hyperthermia.
What is a specific action of Isoflurane (Forane) on the trachea, and why is it specific to surgery?
Isoflurane relaxes the tracheal area and depresses reflexes leading to simpler intubation.
What should you look for in a patient recovering from isoflurane (Forane)
Shivering
What drug, when used with isoflurane, can cause malignant hyperthermia?
succinycholine
What are some advantages of using IV Anesthetics?
rapid pleasant induction, no explosive hazards, low incidence of post op N&V
What are some disadvantages of IV anesthetics?
Laryngospasm, bronchospasm, hypotension, and respiratory arrest.
What are the uses of IV anesthetics?
to induce and maintain general anesthesia, basal anesthesia, and hypnosis.
what is the main difference between barbituates and gaseous agents is?
safety
Aspects of inhalation as a method of anethesia.
controlled minute by minute
Aspects of IV administered anethesia.
once administered the course must continue until out of system.
What class of drugs are barbiturates?
IV general anesthetic, ultra short acting.
What class of drug is propofol (diprivan)?
IV general anesthetic, ultra short acting.
What is the Action of propofol (diprivan)?
Promotes release of GABA, short action anesthetic. Not a controlled substance.