Question

In a spinal anesthesia, where all is the anesthetic injected?

(a) 1^st and 2^nd thoracic space, 11^th and 12^th thoracic space

(b) 3^rd and 4^th Lumbar space, 5^th lumbar and 1^st sacral space

(c) 7^th cervical and 1^st thoracic space, 12^th thoracic and 1^st lumbar space

(d) 1^st and 2^nd lumbar space, 4^th and 5^th lumbar space

I got this question during an online exam.

My question is based upon Anaesthesia Pre and Post Care in portion Anaesthesia of Clinical Science

Answer 1

The correct choice is (b) 3^rd and 4^th Lumbar space, 5^th lumbar and 1^st sacral space

For explanation I would say: A spinal anesthesia is given when the lower body is being operated upon. The lumbar region can numb the abdominal areas and allows the operation of the GI track and the sacral area numbs the lower extremities. Since the sacral and coccyx bones are almost fused together, 1st sacral space is the only accessible space.