Inhalation agents

Question 1

increases catecholamines

Answer 1

N20, Iso, Des

Question 2

minimal change in minute ventilation/ resting CO2 levels

Answer 2

N20

Question 3

Increases CMRO2

Answer 3

N20

Question 4

Most potent trigger of MH?

Answer 4

Halothane

Question 5

Does NOT decrease SVR?

Answer 5

Halothane

Question 6

Blunts baroreceptor response

Answer 6

Halothane

Question 7

Caution with EPI (causes arrythmias)

Answer 7

Halothane, Enflurane (4.5mg/kg), N20

Question 8

Cerebral autoregulation blunted?

Answer 8

Halothane

Question 9

increases cutaneous blood flow?

Answer 9

Halothane, isoflurane

Question 10

Bronchodilator?

Answer 10

Halothane (potent), enflurane (

Question 11

15-20% metabolized?

Answer 11

Halothane

Question 12

Produces trifluroacetic acid?

Answer 12

Halothane, Isoflurane

Question 13

Abolished hypoxic drive?

Answer 13

Enflurane

Question 14

Marked respiratory depression at 1 MAC?

Answer 14

Enflurane

Question 15

Increases secretion of CSF and resistance to CSF outflow?

Answer 15

Enflurane

Question 16

2-5% metabolized?

Answer 16

Enflurane, Sevoflurane

Question 17

MAINTAINS hepatic blood flow- dilates?

Answer 17

Isoflurane, Sevoflurane

Question 18

0.2% metabolized?

Answer 18

Isoflurane

Question 19

0.02% metabolized? (

Answer 19

Desflurane

Question 20

What is the greatest producer of carbon monoxide?

Answer 20

Desflurane>enflurane, isoflurane> halothane, sevoflurane

Question 21

What forms compound A?

Answer 21

Sevo, produces reactive thiol. use 2 L/min of FGF.

Question 22

What causes coronary steal syndrome?

Answer 22

Isoflurane

Question 23

Mild beta adrenergic stimulation?

Answer 23

Isoflurane

Question 24

dilates coronary arteries?

Answer 24

Halothane, isoflurane

Question 25

Enhances CSF reabsorption?

Answer 25

Isoflurane

Question 26

Most irritating to airways?

Answer 26

Desflurane

Question 27

Dose dependent decrease in response to TOF and tetanic PNS?

Answer 27

Desflurane

Question 28

Only common agent that does not increase CVP?

Answer 28

Sevoflurane

Question 29

Does NOT cause an SNS response with increase in concentration

Answer 29

Secoflurane

Question 30

The most minimal airway irritation?

Answer 30

Sevoflurane

Question 31

OK for inhalation induction?

Answer 31

Halothane and Sevoflurane

Question 32

Cerebral response to CO2 and auto regulation maintained at 1.5% depresses respirations?

Answer 32

Sevoflurane

Question 33

Avoid in renal failure?

Answer 33

Enflurane, Sevoflurane

Question 34

minimal change in minute ventilation/ resting CO2 levels

Answer 34

N20

Question 35

Increases CMRO2

Answer 35

N20

Question 36

Decreases hypoxic drive?

Answer 36

N2O, Halothane, Enflurane (abolished)

Question 37

Most potent trigger of MH?

Answer 37

Halothane

Question 38

Does NOT decrease SVR?

Answer 38

Halothane

Question 39

Blunts baroreceptor response

Answer 39

Halothane

Question 40

Caution with EPI (causes arrythmias)

Answer 40

Halothane, Enflurane (4.5mg/kg), N20

Question 41

Cerebral autoregulation blunted?

Answer 41

Halothane

Question 42

increases cutaneous blood flow?

Answer 42

Halothane, isoflurane

Question 43

Bronchodilator?

Answer 43

Halothane (potent), enflurane (

Question 44

Produces trifluroacetic acid?

Answer 44

Halothane, Isoflurane

Question 45

Abolished hypoxic drive?

Answer 45

Enflurane

Question 46

Marked respiratory depression at 1 MAC?

Answer 46

Enflurane

Question 47

Increases secretion of CSF and resistance to CSF outflow?

Answer 47

Enflurane

Question 48

Beneficial effects on hepatic oxygen delivery

Answer 48

Isoflurane, sevoflurane

Question 49

What is the greatest producer of carbon monoxide?

Answer 49

Desflurane>enflurane, isoflurane> halothane, sevoflurane

Question 50

What forms compound A?

Answer 50

Sevo, produces reactive thiol. use 2 L/min of FGF.

Question 51

What causes coronary steal syndrome?

Answer 51

Isoflurane

Question 52

Mild beta adrenergic stimulation?

Answer 52

Isoflurane

Question 53

dilates coronary arteries?

Answer 53

Halothane, isoflurane

Question 54

Silent EEG at 2 MAC?

Answer 54

Isoflurane

Question 55

Dose dependent decrease in response to TOF and tetanic PNS?

Answer 55

Desflurane

Question 56

Only common agent that does not increase CVP?

Answer 56

Sevoflurane

Question 57

Does NOT cause an SNS response with increase in concentration

Answer 57

Secoflurane

Question 58

The most minimal airway irritation?

Answer 58

Sevoflurane

Question 59

OK for inhalation induction?

Answer 59

Halothane and Sevoflurane

Question 60

Cerebral response to CO2 and auto regulation maintained at 1.5% depresses respirations?

Answer 60

Sevoflurane

Question 61

Avoid in renal failure?

Answer 61

Enflurane, Sevoflurane

Question 62

elderly/neonates see a decrease in HR

Answer 62

Isoflurane

Question 63

ICP is not increased at 1 MAC or less?

Answer 63

Isoflurane

Question 64

What 3 do not decrease CO?

Answer 64

Iso and Des, (sevo decreases a little)

Question 65

decreases BP by decreasing CO (vs decreasing SVR)

Answer 65

Halothane

Question 66

increases skeletal muscle flow by 4x

Answer 66

Isoflurane (also cutaneous blood flow like halothane)

Question 67

Does not decrease SVR?

Answer 67

Halothane and N2O

Question 68

Does not increase RR above 1 MAC

Answer 68

Isoflurane

Question 69

increases RR more than others at >1 mac

Answer 69

N2O

Question 70

does NOT increase CO2 levels!!!!

Answer 70

N2O

Question 71

CO maintained (does not decrease)

Answer 71

Des and Iso

Question 72

____ increases SNS, Map, HR, BP more than _____

Answer 72

Des increases SNS response more than ISO

Question 73

Increases MAC:

Answer 73

hypERthermia, hyperNAtremia, less than 1 Yr, red hair

Question 74

What decreases mac?

Answer 74

HypOthermia, acute alcohol, lithium, lidocain, hypotension (map

Question 75

does NOT affect MAC?

Answer 75

chronic alcohol, high O2/MAP, POTASSIUM up or down, thyroid issues.