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anaesthesia

Compare & Recall: High-Yield Anesthesia Tables for NEET PG

Jul 16, 2025

Table 1

Regional Anesthesia

Peripheral nerve block	Central neuraxial blockade
Brachial plexus block Stellate ganglion block Celiac plexus block Femoral plexus block	Spinal anesthesia Epidural anesthesia Caudal anesthesia Saddle anesthesia

Table 2

Comparison of Spinal and Epidural Anesthesia

Parameter	Spinal anesthesia	Epidural anesthesia
Onset	Fast	Slow
Duration	Limited duration	Prolonged duration (as a catheter is used)
Headache	Present	Rare
Post-op pain relief	Very low	Fast
Technique	Easy	Difficult
Quality of block	Dense	Incomplete or patchy because the drug diffuses
Complications t	Hypotension- Most common Causes sympathetic blockleading to reduced venous return and cardiac output

Table 3

Non- depolarising muscle relaxant drugs

Steroidal (-curonium)	Benzylisoquinolinium (-curiums)
Ends with curoniumo Pancuroniumo Vecuroniumo Rocuronium	Ends with curiumo Atracuriumo Mivacuriumo Doxacuriumo Cisatracurium

Table 4

Full Review of General Anesthesia

Condition	IV induction Agent	Muscle Relaxant	Inhalational Agent
Heart disease	Etomidate	Vecuronium	Desflurane is best butIsoflurane is commonly used
Asthma	Ketamine	Any muscle relaxantcan be given	Sevoflurane (reduce airwayresistance) > halothane
Shock	Ketamine	Pancuronium	Desflurane is best butIsoflurane is commonly used
Day caresurgery	Propofol	Mivacurium	Desflurane is best butSevoflurane is commonly used
Neurosurgery	Sodium thiopentone	Any muscle relaxant canbe given	Isoflurane

Table 5

Airway Devices

Temporary airway device	Permanent airway device
Used if permanent airway device insertion fails or is difficult. E.g. Laryngeal mask airway	Inserted directly into the trachea Only lungs are ventilated Prevents aspiration E.g. Endotracheal tube

Table 6

Sizes of LMA

Size	Weight of the patient
1	<5 kg
1.5	5-10 kg
2	10-20 kg
2.5	20-30 kg
3	30-50 kg
4	50-70 kg
5	70-100 kg
6	>100 kg

Table 7

Lemon's Law

Evaluation	Criteria Points
L = Look externally
Facial trauma	1
Large incisors	1
Beard or moustache	1
Large tongue	1
E = Evaluate the 3-3-2 rule
Incisor distance - 3 finger breadths	1
Hyoid mental distance - 3 finger breadths	1
Thyroid-to-mouth distance - 2 finger breadths	1
M = Mallampati (Mallampati score > 3)	1
O = Obstruction (presence of any condition suchas epiglottitis, peritonsillar abscess, trauma)	1
N = Neck mobility (limited neck mobility)	1
Total	12

Table 8

Indications of ventilator

Invasive Ventilator	Non-invasive Ventilation
Increasing respiratory rate Asynchronous respiratory pattern Change in mentation or level ofconsciousness (GCS < 8) Hypercapnia and respiratory acidosis Hypotension and atrial dysrhythmias	Acute exacerbations of COPD Cardiogenic pulmonary edema Obesity hypoventilation syndrome

Table 9

Concentration of lignocaine in various anesthesia techniques

Technique	Concentration
Intravenous regional anesthesia	0.5%
Nerve blocks / Epidural	1-2%
Topical	2-4%
Spinal	Spinal 5%

Table 10

Reversible causes of Cardiac arrest

5Hs	5Ts
Hypovolemia Hypothermia Hydrogen ion (acidosis) Hypokalemia Hyperkalemia	Cardiac tamponade Coronary thrombosis Tension pneumothorax Pulmonary thrombosis Toxin

Table 11

AHA algorithm for Tachycardia Management

Table 12

Parts of Anaesthesia Machine

High-pressure system	Intermediate pressuresystem	Low-pressure system
Cylinder Yolk valve assembly Pressure gauze Pressure reducing valve	Oxygen and Nitrogenproportioning devices Flow control valve Oxygen flush Central supply	Vaporizer Rotameter Common gas outlet

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