CEO5

Question 1

which nerve is at risk of injury when a face mask strap is used?

Answer 1

facial nerve – CN7

Question 2

what is the internal diameter of an anesthesia face mask connector?

Answer 2

22mm

Question 3

what observational assessment is the best means for assessing effectiveness of bag-mask ventilation?

Answer 3

chest rise/fall

Question 4

what is an appropriate starting rate for infusion of nitroglycerine?

Answer 4

0.5µg/kg/min

Question 5

why is a reservoir bag included as a component of an anesthesia breathing circuit?

Answer 5

peak inspiratory flow demands

Question 6

below what MAC level will sevoflurane not increase heart rate?

Answer 6

1.5 MAC

Question 7

what prior surgical procedures represent a contraindication for IV catheter placement in an upper extremity

Answer 7

AV fistula

Question 8

what prior surgical procedures represent a contraindication for NIBP measurement in an upper extremity?

Answer 8

axillary node dissection, mastectomy

Question 9

comparing blood pressure measurements taken on an upper arm and the ipsilateral calf, how will the systolic and diastolic values compare?

Answer 9

systolic increases more than diastolic decreases

Question 10

name one contraindication to hetastarch administration

Answer 10

allergy/rxn to hetastarch (hydroxyethyl starch)

Question 11

ekg identification of 60-cycle interference

Answer 11

wavy p-q, t-p segments

Question 12

when performing bag-mask ventilation in an adult, which fingers must be applied only to the bony rim of the mandible?

Answer 12

3 and 4

Question 13

if an IV catheter is in the SVC, where is it?

Answer 13

superior vena cava

Question 14

what is the procedure to anesthetize an AIDS pt?

Answer 14

routine infection control

Question 15

what is the difference between an empyema and an abscess?

Answer 15

empyema – collection of pus within a naturally occurring cavity
abscess –collection of pus within in a newly formed cavity

Question 16

calculate FRC for 70kg pt

Answer 16

FRC = 35ml/kg
FRC = (70kg) * 35ml/kg
FRC = 2450ml

Question 17

calculate oxygen consumption

Answer 17

VO2 = (kg)^0.75 * 10

Question 18

what percentage change is expected in one time constant?

Answer 18

63%

Question 19

what percentage change is expected in two time constants?

Answer 19

86.5%

Question 20

what percentage change is expected in three time constants?

Answer 20

95%

Question 21

calculate alveolar ventilation

Answer 21

V(A) = (TV – VDanat) * RR

Question 22

calculate VDanat (anatomical deadspace)

Answer 22

VDanat = kg*2.2 or wt(lbs)

Question 23

calculate 1 time constant for nitrogen washout (70kg, VT=500, RR=10)

Answer 23

1T = FRC/V(A)
1T = (70*35ml/kg) / V(A)
1T = 2450ml / ((VT – VDanat) * RR)
1T = 2450ml / ((500ml - (70*2.2)ml) * 10/min
1T = 2450ml / ((500ml - 150ml) * 10/min
1T = 2450ml / (350ml * 10/min)
1T = 2450ml / 3500ml/min
1T = 0.7min