General and Local Anesthetics Flashcards
These inhaled anesthetics lack sufficient potency to produce surgical anesthesia alone
Nitrous Oxis–“flurane” group
Adverse effects of Inhaled Anesthetics/ Nitrous Oxide “flurane” group
- Strong correlation btw resp activity and inhaled anesthetic removal from the body and thus pt recovery. Elderly have suppressed resp activity; problem for PT since still may be under anesthetic effects
- Utilize drugs that have a low blood solubility so drug is more rapidly driven out of body by the lungs
- Also, MALIGNANT HYPERTHERMIA can results when inhaled anesthetics are used in association w.succinylcholine = use the drug dantrium (anti-spasmolytic drug that effects SR/Ca influx
You are seeing a pt in an outpatient setting after a surgical procedure. What type of anesthetic do you assume she was on?
-Intravenous: Propofol (Diprivan)=Most commonly used and see rapid anesthesia and rapid patient recovery
Ketamine-Intravenous Anesthetic
Creates “dissociative anesthesia: where patient is conscious but exhibits catatonia (unresponsive), analgesia, amnesia
Adverse effects: Excitation, hallucinations
Barbituates-Intavenous Anesthetic but also axiolytic
Highly lipid soluble so readily cross into brain
Primary concern for PT in acute care after anesthetic
Sedation, confusion, mm weakness due to neuromuscular block
*Elderly more prone due to impaired drug metabolism and elimination and may exhibit effects for several days (hypotension, resp distress, ataxia, altered mental status)
How does local anesthesia work?
Blocks sensory transmission from localized area to CNS–Drugs block the voltage gated Na channels of excitable membranes blocking conduction of AP to CNS or skel mm
*PT may adminster this via iontophoresis, phonophoresis
Common local anesthetic suffix….
“Caine”
Effects of spinal anesthesia during PT
-Prolonged effect so Pt must assess sensory and motor function of pt prior to motor tasks
