The segmental level of spinal anaesthesia depends on:
* Factors affecting the height of block :- -- Volume of drug -- Baricity (Ratio of specific gravity of an agent to that of CSF). -- Position of the patient -- Intra-abdominal pressure -- Curvature of spine * Factors affecting duration of block :- -- Dose -- Concentration - - Drug (LA used) -- Added vasoconstrictors
Volume of the local anaesthetic injected
Specific gravity of the local anaesthetic solution
Posture of the patient
All of the above
Anaesthesia