ITE

Question 1

Sensory aspect of the corneal reflex is mediated by

Answer 1

Ophthalmic division of the trigeminal nerve (CNV)

Question 2

Motor aspect of the corneal reflex is mediated by

Answer 2

Facial nerve (CN VII)

Question 3

What can be seen in magnesium toxicity when levels rise between 7-12 mg/dL

Answer 3

Absent deep tendon reflexes

Question 4

Oxyhemoglobin dissociation curve shifts which way in newborn babies

Answer 4

left

Question 5

Fetal oxyhemoglobin dissociation curve shifts which way as it releases carbon dioxide into the maternal circulation

Answer 5

left

Question 6

Hypernatremia would lead to an increase in osmolality resulting in secretion of

Answer 6

vasopressin

Question 7

Succinylcholine is degraded by

Answer 7

butyrylcholinesterase/ pseudocholinesterase / plasma cholinesterase

Question 8

Which muscle is located immediately posterolateral to the brachial plexus roots

Answer 8

middle scalene

Question 9

metabolizes inhaled anesthetics

Answer 9

CYP 2E1

Question 10

patients with obstructive sleep apnea are susceptible to respiratory depressant effects of

Answer 10

benzodiazepines, opiates, and neuroleptics

Question 11

Carbon monoxide is produced when which volatile anesthetic reacts with desiccated carbon dioxide absorbents that contain strong bases

Answer 11

desflurane

Question 12

Parasympathetic activation (acetylcholine release) at the bladder detrusor muscle results in

Answer 12

detrusor muscle contraction

Question 13

Sympathetic activation (norepinephrine release) at the gut results in

Answer 13

decreased gut motility

Question 14

Predictor of difficult mask ventilation

Answer 14

male gender

Question 15

Only intravenous or inhaled anesthetic that increases blood flow in the

Answer 15

liver

Question 16

Most common volatile anesthetic that causes emergence delirium

Answer 16

Sevoflurane

Question 17

Volatile anesthetic that increases heart rate starting at 0.25 MAC

Answer 17

Isoflurane

Question 18

Most common type of radiation clinical staff are exposed to

Answer 18

scatter radiation

Question 19

Effect of epinephrine on epidural bupivacaine

Answer 19

minimally prolongs duration of action (duration of action already so long)

Question 20

Was introduced in the early 2000s and has helped surgeons further identify the recurrent laryngeal nerve

Answer 20

intraoperative nerve monitoring

Question 21

Do not alter the seizure threshold in patients with renal failure

Answer 21

opioids

Question 22

Required fresh gas flow during spontaneous ventilation for this circuit is slightly less than the minute ventilation and is therefore the most efficienct

Answer 22

Mapleson A

Question 23

Washout of nitrous oxide can lead to

Answer 23

hypocarbia

Question 24

Effect of abdominal insufflation on pulmonary compliance

Answer 24

Decreased (which then increases peak inspiratory and plateau pressures

Question 25

Fasting interval for breast milk

Answer 25

4 hours (because breast milk leads to higher gastric residual volumes)

Question 26

At full term gestation, tidal volume is

Answer 26

increased 20-50%

Question 27

Minute ventilation at full-term gestation

Answer 27

increased

Question 28

Increased plasma Na+ increases what

Answer 28

strong ion difference

Question 29

Alpha/type I error

Answer 29

null hypothesis is incorrectly rejected when there really was no difference

Question 30

Dexmedetomidine mechanism of analgesia

Answer 30

agonist to peripheral and central alpha-2 receptors in the dorsal horn of the spinal cord

Question 31

After how long under anesthesia does core temperature monitoring need to be done

Answer 31

30 minutes

Question 32

Shunt fraction equation

Answer 32

Qs/Qt = (1n-SaO2) / (1-SvO2)

Question 33

Hypotension effect on changes in PaCO2

Answer 33

Decreased responsiveness

Question 34

Morquio syndrome is associated with

Answer 34

atlantoaxial instabiligy

Question 35

Numerous B-lines on pulmonary ultrasound indicates

Answer 35

pulmonary edema

Question 36

Adverse effect of nitrous oxide use in seriously ill patients or with chronic use

Answer 36

Megaloblastic anemia

Question 37

How vasopressin maintains osmolality

Answer 37

Inserting aquaporin channels in the collecting duct

Question 38

Greatest risk factor for postoperative visual loss

Answer 38

length of procedure in prone position

Question 39

Left circumflex artery supplies the

Answer 39

anterolateral papillary muscle

Question 40

Large-volume nerve block with the potential to cause local anesthetic systemic toxicity

Answer 40

transversus abdominis plane block

Question 41

Isovolemic hemodilution effect on cardiac output and systemic vascular resistance

Answer 41

increases cardiac output and decreases systemic vascular resistance

Question 42

Low molecular weight heparin clearance mechanism

Answer 42

Relies on renal clearance for up to 40% of its elimination

Question 43

Can reduce wall stress on cerebral aneurysms

Answer 43

Controlled hypotension

Question 44

Inhaled anesthetics effect on respiratory rate

Answer 44

Increased in a dose-dependent manner