Anaesthesia Flashcards
(35 cards)
World Anaesthesia Day?
16th October first public demonstration of ether
Triad of GA?
- Hypnosis
2.Analgesia - Muscle Relaxation
Father of Anaesthesia
John Snow
N2O& O2 synthesised by?
Priestley
ISt LA to be used?
COCAINE
only LA Cause Vasoconstriction
lst Spinal Anaesthesia given by?
August Bier
Normal Healthy pt, which grade of ASA?
Grade I pt has no systemic dis
non smoker With minimal or no Alcohol Intake
Braindead pt for organ donation, which ASA?
Grade VI
Normal pregnancy, which ASA?
Grade II
mild systemis dis well controlled with no functional limitation.
eg - Well controlled DM & HTN
Social Drinker
Age > 70 years
ASA grade V ?
Moribound pt- unlikely to survive without Sx
eg- Ruptured Thoracic Abdominal AA
Bowel Obstruction
End stage Renal dis on Regular dialysis, which ASA?
III
pt with Severe systemis dis with functional limitations
Stable Angina
> 3 month H/0 MI CVA TIA
Chronic Smoker
Alcohol Addict
ASA grade IV ?
Severe systemic dis, threat to life of pt
DKA
Unstable Angina
Eclampsia
End Stage Renal dis on Irregular dialysis
< 3 month H/0 MI CVA TIA
Mallampati grading- used for? grades?
to assess size of tongue for laryngoscopy
grade I- Faucial pillar, Uvula with tip, soft palate
visible
grade 2- uvula without tip, soft palate
3- Only soft palate
4- only hard palate
3 $ 4- diff for Intubation
Thyromental distance?
Normal > 6.5 cm
Concern < 6 cm
Sterno-mental distance?
> 12.5 Cm
Adequate mouth opening?
3 cm atleast
All psychiatric medicines to be continued except
MAO- Inhibitors & lithium
Irreversible MAO Inhibitors- stopped 2-4 wks before. Cause Severe sympathetic Reaction with pethidine
Newer MAO inh like Selagiline con be cont optil one day before Sx.
li- Stopped 2 days before Sx
Clopidogrel stopped how many days before Sx?
7 days
guedel’s stages of Anesthesia?
4 stages
A. Stage of Analgesia B. Stage of Excitement
C. Stage of Surgical Anaesthesia
which further has 4 planes
D. Complete Coma
MAC? Highest MAc? lowest?
Minimum Alveolar ConC @ which 50% pt will not respond to stimuli
Max MAC- N20-105%
Minimum MAC- Methoxy flukane-0.3%
Arrange in order of increasing mac
Xenon, Halothane, Sevoflurane,
Desflurane, Isoflurane, Methoxy flurane
N20-105%
Xenon. 70%
Desflurane= 6 %
Sevo - 2.2%
1so - 1.2%
Halo - 0.75%
Methoxy- 0.3%
Blood gas Solubility coefficient
Solubility of agent in the blood
lower the coefficient, faster is the Induction & Recovery and vice-versa
Xenon - .17
Desflurane = 0.42
N20= 0.45
Sevof = 0.65
Isof -1.2
Halothere= 2.2
Methoxy F= 15
sweet Smelling Anesthetic?
Halothane> Sevof > Isof > Desf (Most pungent)
DOC- for liver Transplant pt’?
Isoflurane maintains total hepatic blood flow
and portal vein flow.
- pungent smelI
