Anaesthetics

Question 1

Nitrous oxide, entonox

Answer 1

Inhaled anaesthetic

dental surgery , procedures, sutures, childbirth.

MOA- prevents pain impulses from nociceptors reaching CNS.
= low bp, lightheaded

Question 2

Lignocain , Bupivacaine

Answer 2

local anesthetic , amide

minor surgery , childbirth

MOA- prevents pain impulses from nociceptors reaching CNS.
= abnorm heart beat, low BP

Question 3

cocaine

Answer 3

local anaesthetic (topical)

ear nose and throat procedures,

MOA- prevents pain impulses from nociceptors reaching CNS.
= nausea, nervous, restless

Question 4

Isoflurane

Answer 4

inhaled general anaesthetic
surgery

changes tissue responsiveness to stimulation (EXCITABILITY) to reduce pain impulses from nociceptors.
= contraindicated with tachycardia

Question 5

desflurane

Answer 5

inhaled general anaesthetic
surgery

changes tissue responsiveness to stimulation (EXCITABILITY) to reduce pain impulses from nociceptors.
= contraindicated with liver dys

Question 6

Propofol

Answer 6

sedative, muscle relaxant
surgery

blocks sodium channels, increasing GABA receptors - slowing channel closing time.
= itching , change in HR.

Question 7

Suxamethonium

Answer 7

Muscle relax, paralytic, cholinergic agonist.
surgery

binds to the nicotinic cholinergic receptor.- opens channel , maintain membrane potential
- constipation , malignant hypothermia