General and local anesthetics chapter 27 Flashcards
What is Anesthetics?
Drugs used to cause partial or complete loss of sensation
What is General anesthetics?
CNS depressant loss of sensation and LOC
What is local anesethtics?
Loss of sensation in specific area without systemic effect
Describe the combinations that makes general anesthesia work
-Analgesia( Loss of pain sensation)
Unconsciousness
-Amnesia-inability to recall
-Blocking of physical reflexes that may interfere with surgery-
Describe balance anesthesia work?
drugs combined to produce the best effect with minimal amount of medication
Pre-op meds decrease secretions, prevent bradycardia
Sedative-hypnotics relax pt, decrease SNS stimulation
Anti-emetic as GI slows can cause N/V. No eating before surgery!
Antihistamine dry secretions, decrease chance of allergic reaction
Opioids analgesic and sedation
What is methohexital (Brevital) ?
General Anesthetic Agents:Barbituates
Causes CNS depression
What is therapeutic actions of methohexital (Brevital) ?
General Anesthetic Agents:Barbituates
Causes CNS depression
What is indications of methohexital (Brevital) ?
General Anesthetic Agents:Barbituates
Induce rapid anesthesia
What is pharmacokinetics of methohexital (Brevital) ?
General Anesthetic Agents:Barbituates
Rapid acting (10-30 secs); short recovery
What are adverse effects of methohexital (Brevital) ?
General Anesthetic Agents:Barbituates
r/t suppression of CNS
Post-op n/v
What are contras/cautions with methohexital (Brevital) ?
General Anesthetic Agents:Barbituates
Pregnancy, unless necessary
What are drug interactions with methohexital (Brevital) ?
General Anesthetic Agents:Barbituates
-Synergistic with other CNS suppressants
-Decrease effectiveness of many medications:
Anti-coags, beta-blockers, oral contraceptives
What is midazolam(versed)?
General anesthetic agents: Non-barbiturates
What is therapeutic actions of midazolam(versed)?
General anesthetic agents: Non-barbiturates
Acts in RAS and limbic system
What is indications of midazolam(versed)?
General anesthetic agents: Non-barbiturates
Potent amnesiac
Utilized for diagnostic procedures as well as surgery