Misc. Monitors

Question 1

Answer 1

Question 2

13-30 cycles/sec
High frequency and low voltage
A/w awake mental stimulation and “light” anesthesia

Answer 2

Beta

Question 3

Frequency 8-12 cycles/sec
A/w awake but restful state with eyes closed

Answer 3

Alpha

Question 4

4-7 cycles/sec
A/w general anesthesia and children during normal sleep

Answer 4

Theta

Question 5

<4 cycles/sec
A/w general anesthesia, deep sleep, and brain ischemia or injury

Answer 5

Delta

Question 6

A/w general anesthesia, hypothermia, CPB, and cerebral ischemia (especially if it’s unilateral)

Answer 6

Burst suppression

Question 7

Absence of electrical activity
A/w very deep anesthesia or death

Answer 7

Isoelectricity

Question 8

The development of new ____ waves during anesthetic maintenance may signify the brain is at risk for ischemia

Answer 8

delta

Question 9

What circumstances mimic cerebral ischemia?

Answer 9

deep anesthesia, hypothermia, and hypocarbia

Question 10

Which drugs impair SSEPs?

Answer 10

VAs, nitrous, propofol, barbiturates, midazolam, diazepam

Question 11

Which drugs do NOT impair SSEPs?

Answer 11

ketamine
precedex
etomidate
opioids
droperidol