stages of anesthesia

Question 1

Stage 1 begins with ____ and ends with _____

Answer 1

administration of anesthesia, loss of consciousness

Question 2

we often do not see stage one until

Answer 2

emergence

Question 3

in stage 2, muscle tone is ____

Answer 3

increased

Question 4

in stage 1, muscular tone is

Answer 4

normal

Question 5

stage 2 is known as the stage of

Answer 5

delirium or excitement

Question 6

stage 2 begins at ___ and ends at ___

Answer 6

loss of consciousness, beginning of surgical anesthesia

Question 7

larynospasm is likely to occur in stage

Answer 7

2

Question 8

in stage2 pupils

Answer 8

dilate, can point in diff directions

Question 9

in stage2, BP and HR are

Answer 9

elevated

Question 10

in stage 2, breathing is

Answer 10

irregular and fast

Question 11

in stage 3, respirations are

Answer 11

regular

Question 12

in stage 3, pulse and BP

Answer 12

normalize

Question 13

in stage3, muscles

Answer 13

relax

Question 14

in stage 3, pupils

Answer 14

centered

Question 15

in stage 3, cough gag and eyelid reflexes are

Answer 15

absent

Question 16

stage4 is the stage of

Answer 16

depression

Question 17

stage 4 effect on cardiac and resp

Answer 17

profound depression

Question 18

in stage 1, breathing is

Answer 18

irregular (gas is irritating)

Question 19

in stage 4,pupils are

Answer 19

dilated

Question 20

stage3 is the ___ stage

Answer 20

operative

Question 21

with loss of reflexes and rhythmic respirations, there is indication that ___ is beginning

Answer 21

surgical anesthesia (stage3)

Question 22

signs of light anesthesia

Answer 22

increase: resp, BP, HR, muscle tone, swallowing, coughing, tears

Question 23

signs of deep anesthesia

Answer 23

hypotension, diaphragmatic breathing, dilated lack luster pupils, bradycardia

Question 24

in stage 1,brain gas tension is

Answer 24

low.

Question 25

in stage 1 what happens in the brain

Answer 25

dorsal horn activity decreases and there is decreased synaptic transmission in the spinothalamic tract

Question 26

in stage 2 what happens in the brain

Answer 26

the partial pressure in the brain rises and there is a blockade of inhibitory neurons, which enhances and facilitates synaptic transmission

Question 27

in stage 3 what happens in the brain

Answer 27

Pbr further increases giving rise to progressive depression of the ascending (sensory) pathways of the RAS, producing a suppression of spinal reflex activity or skeletal muscle relaxation.