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ITE > ITE > Flashcards

ITE Flashcards

1
Q

Sensory aspect of the corneal reflex is mediated by

A

Ophthalmic division of the trigeminal nerve (CNV)

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2
Q

Motor aspect of the corneal reflex is mediated by

A

Facial nerve (CN VII)

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3
Q

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

A

Absent deep tendon reflexes

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4
Q

Oxyhemoglobin dissociation curve shifts which way in newborn babies

A

left

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5
Q

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

A

left

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6
Q

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

A

vasopressin

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7
Q

Succinylcholine is degraded by

A

butyrylcholinesterase/ pseudocholinesterase / plasma cholinesterase

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8
Q

Which muscle is located immediately posterolateral to the brachial plexus roots

A

middle scalene

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9
Q

metabolizes inhaled anesthetics

A

CYP 2E1

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10
Q

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

A

benzodiazepines, opiates, and neuroleptics

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11
Q

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

A

desflurane

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12
Q

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

A

detrusor muscle contraction

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13
Q

Sympathetic activation (norepinephrine release) at the gut results in

A

decreased gut motility

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14
Q

Predictor of difficult mask ventilation

A

male gender

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15
Q

Only intravenous or inhaled anesthetic that increases blood flow in the

A

liver

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16
Q

Most common volatile anesthetic that causes emergence delirium

A

Sevoflurane

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17
Q

Volatile anesthetic that increases heart rate starting at 0.25 MAC

A

Isoflurane

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18
Q

Most common type of radiation clinical staff are exposed to

A

scatter radiation

19
Q

Effect of epinephrine on epidural bupivacaine

A

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

20
Q

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

A

intraoperative nerve monitoring

21
Q

Do not alter the seizure threshold in patients with renal failure

A

opioids

22
Q

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

A

Mapleson A

23
Q

Washout of nitrous oxide can lead to

A

hypocarbia

24
Q

Effect of abdominal insufflation on pulmonary compliance

A

Decreased (which then increases peak inspiratory and plateau pressures

25
Q

Fasting interval for breast milk

A

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

26
Q

At full term gestation, tidal volume is

A

increased 20-50%

27
Q

Minute ventilation at full-term gestation

A

increased

28
Q

Increased plasma Na+ increases what

A

strong ion difference

29
Q

Alpha/type I error

A

null hypothesis is incorrectly rejected when there really was no difference

30
Q

Dexmedetomidine mechanism of analgesia

A

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

31
Q

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

A

30 minutes

32
Q

Shunt fraction equation

A

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

33
Q

Hypotension effect on changes in PaCO2

A

Decreased responsiveness

34
Q

Morquio syndrome is associated with

A

atlantoaxial instabiligy

35
Q

Numerous B-lines on pulmonary ultrasound indicates

A

pulmonary edema

36
Q

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

A

Megaloblastic anemia

37
Q

How vasopressin maintains osmolality

A

Inserting aquaporin channels in the collecting duct

38
Q

Greatest risk factor for postoperative visual loss

A

length of procedure in prone position

39
Q

Left circumflex artery supplies the

A

anterolateral papillary muscle

40
Q

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

A

transversus abdominis plane block

41
Q

Isovolemic hemodilution effect on cardiac output and systemic vascular resistance

A

increases cardiac output and decreases systemic vascular resistance

42
Q

Low molecular weight heparin clearance mechanism

A

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

43
Q

Can reduce wall stress on cerebral aneurysms

A

Controlled hypotension

44
Q

Inhaled anesthetics effect on respiratory rate

A

Increased in a dose-dependent manner

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