Anesthesia

Question 1

what is regional anesthesia?

Answer 1

site specific for UE, LE, or lower abdomen

Question 2

what is spinal regional anesthesia used for?

Answer 2

can be injected in the subarachnoid space between the L3, L4, or L5 interspace

can be epidural (thoracic or lumbar region)

peripheral nerve blocks

• temporary numbness and muscle relaxation

Question 3

what is general anesthesia?

Answer 3

reversible state of consciousness consisting of amnesia, inhibition of noxious reflexes, analgesia, and muscle relaxation

Question 4

what is the first phase of general anesthesia?

Answer 4

induction - through IV meds

propofol is most common

Question 5

what is the second phase of general anesthesia?

Answer 5

maintenance

volatile gases - servoflurane, desflurane, nitrous oxide

Question 6

what is the third phase of general anesthesia?

Answer 6

emergence

autonomic hyper-responsiveness

may result in HTN, tachycardia, broncho/laryngospasms

can be blunted with short acting narcotics, beta blockers, lidocaine