Anesthesia induces temporary loss of sensation or awareness through analgesia, paralysis, or amnesia. It can be categorized as general anesthesia, which suppresses the central nervous system, or regional/local anesthesia, which block nerve impulses in a targeted area. The main purposes of anesthesia are hypnosis, analgesia, and muscle relaxation. Anesthesia drugs include intravenous drugs like thiopentone and propofol, inhalational drugs like nitrous oxide and isoflurane, and analgesic drugs like opioids and NSAIDs. Anesthesia is classified and coded based on the type administered and physical status of the patient.

2.  DEFINITION: loss of sensation
 TYPES: General anesthesia
Retinol anesthesia
Local anesthesia

3.  Anesthesia may induce temporary loss of
sensation or awareness
 It may categorized as :-
 analgesia (relief from or prevention of pain)
 paralysis(muscle relaxation)
 amnesia (loss of memory)
or unconsciousness.

4.  A patient under the effects
of anesthetic drugs is referred to as
being anesthetized.
 General anesthesia suppresses central
nervous system.
 Regional anesthesia and local anesthesia,
which block transmission of nerve impulses
between a targeted part of the body.

5. MAIN PURPOSE OF ANESTHESIA
 Hypnosis (temporary loss of consciousness)
 Analgesia(lack of sensation)
 muscle relaxation

6.  General anesthetics can affect all of the
endpoints.
 Whereas local/regional anesthetics
affect the endpoints differently.

7.  Unconsciousness
 Amnesia
 Analgesia
 Oxygenation
 Ventilation
 Homeostatic
 Air management
 Reflex management
 Muscle relaxation
 monitoring

8.  INTRAVENOUS DRUGS:-
 Thiopentone
 Propofol
 Others like:-
etomidate,benzodiazepines,ketamine.

9.  INHALATIONAL DRUGS:-
 NITROUS OXIDE
 ISOFLURANE
 SEVOFLURANE
 DESFLURANE
 HALOTHANE

10.  ANALGESIC CLASS:-
 Opiates
 Local anesthetics like:NSAIDS, Paracetamol.
 Opiate analgesics like:morphine,codeine.
 NSAIDS ANALGESIC:-
 Ibuprofen
 Diclofenac
 Cox-2 inhibitors

11.  Muscle relaxant anesthesia drugs like:-
 Suxmethonium
 Tracurium
 LOCAL ANESTHESIA
ex:lignocaine,bupivacaine, prilocaine

12.  Effective alternative to general anesthesia
 Avoids polypharmacy
 Allergic reactions
 Patient can remain awake

13.  LIMITED SCOPE
 HIGHER FAILURE RATE
 RISK OF NEURAL INJURY

14.  In coding it classified as:-
 Spinal anesthesia
 Epidural anesthesia
 Nerve block anesthesia
 Time of anesthesia is calculated in units
 Each 15 minutes=I unit

15.  Time starts from preparing the patient for
the induction of anesthesia in OP room and
ends when the patient may be safely placed
under postoperative supervision
 Depending upon the type of services codes
are listed in E/M services
 special services are listed in medicine

16.  Multiple procedures under single anesthetic
administration code represents most complex
procedure.
 Range of anesthesia code 00100-01999 plus
addition of physical state modifier.
 The use of other optional modifiers may be
appropriate

17.  Based on (ASA)
 P1:a normal healthy patient
 P2 :a patient with mild systemic disease
 P3:a patient with severe systemic disease
 P4:a patient with severe systemic disease
that is a constant threat to life
 P5:a moribund(hospitalized)patient who is
not expected to survive without the
operation
 p6:a declared brain-dead patient whose
organs are being removed for donor purposes

18.  AA: anesthesia given by anesthelogist.
 CRNA: certified registered nurse
anesthelogist
 SRNA:student registered nurse anesthetist
 MAC:monitored anesthesia care
 AD:medical super vision by a physician more
than 4 concurrent anesthesia procedures

19.  QK:medical direction of 2,3,or 4 concurrent
anesthesia procedures.
 QY:medical direction of 1 crna by
anesthesiologist.
 QX:crna service with medical direction by
anesthesiologist
 QZ:crna services without medical direction
by anesthesiologist
 QS:MAC services

20.  G8: monitored anesthesia by deep complex,
complicated(or)marketly invasive surgical
procedure
 G9:MAC for a patient who has the history of
severe cardiopulmonary condition
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