General Anesthesia

Question 1

What’s the triad of anesthesia

Answer 1

Asleep, pain free, still

Question 2

What makes an ideal anesthesia

Answer 2

Unconcsiousness, amnesia, analgesia, skeletal muscle relaxation, areflexia, good minute to minute control

Question 3

4 important fam/med Hx

Answer 3

1. Family Hx of MH
2. Cardiovascular problems
3. Respiratory disease
4. Allergies to medicine and food

Question 4

4 phases of anesthesia

Answer 4

Induction, Maintenance, Emergence, Recovery

Question 5

How do anesthetics alter ion channel function

Answer 5

Increase GABAa receptor Cl channel activity

Activate voltage gated K channels

Inhibit glutamate NMDA receptors

Question 6

What is the 2nd Gas effect

Answer 6

Reduces the induction time for the primary agent. Speeds up mask induction. ie use NO to speed induction time of sevoflurane.

Question 7

Disadvantages of NO

Answer 7

Lack of potency, DIFFUSION HYPOXIA, increased risk of spontaneous abortion and decreased probability of conception

Question 8

Halothane

Answer 8

Prototype drug

Question 9

Enflurane

Answer 9

CNS side effects

Question 10

Ketamine side effect

Answer 10

Emergence phenomenon-unpleaseant dreams, hallucinations and disorientation during emergence