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Fa: Anatomy 2 > 13. Airway Block > Flashcards

13. Airway Block Flashcards

1
Q

superior laryngeal nerve is a branch of

A

vagus nerve

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2
Q

internal branch superior laryngeal nerve innervates

A

sensory only
above the vocal cords

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3
Q

external branch of superior laryngeal nerve innervates

A

motor only
cricothyroid muscle

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4
Q

reccurent laryngeal nerve is a branch of the

A

vagus nerve

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5
Q

RLN innervates

A

motor
intrinsic laryngeal muscles (not cricothyroid)
larynx below the vocal cords
trachea

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6
Q

unilateral injury to SLN SE

A

minor side effects

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7
Q

bilateral injury to SLN SE

A

hoarseness

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8
Q

unilateral injury to RLN SE

A

hoarseness

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9
Q

bilateral damage to RLN SE

A

dyspnea
stridor
aphonia

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10
Q

branches of trigeminal nerve

A

opthalmic (V1)
maxillary (V2)
mandibular (V3)

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11
Q

the mandibular nerve branches into

A

lingual nerve

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12
Q

lingual nerve innervation

A

anterior 2/3 of tongue

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13
Q

glossopharyngeal nerve (IX) innervation

A

posterior 1/3 of tongue
posterior pharynx
tonsils
epiglottis

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14
Q

blocking glossopharyngeal nerve SE

A

suppress gag reflex

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15
Q

blocking SLN anesthetizes

A

larynx above vocal cords:
base of tongue
epiglottis
arytenoids

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16
Q

blocking RLN anesthetizes

A

vocal cords
below vocal cords (trachea)

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17
Q

which nerves must be blocked to completely anesthetize airway for awake intubation

A

glossopharyngeal nerve
SLN
RLN

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18
Q

glossopharyngeal nerve block complications

A

dysphagia
loss of taste
hoarseness

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19
Q

2 methods for glosspharyngeal nerve block

A

lidocaine spray
lidocaine injection

20
Q

lidocaine spray dosing

A

10% lidocaine

21
Q

lidocaine spray onset

A

1-3 mins

22
Q

lidocaine spray duration

A

10-15 mins

23
Q

how many seconds between each lidocaine spray

A

3 swallows or 15-30 seconds

24
Q

glossopharyngeal injection location

A

submucosa of posterior tonsillar pillar

25
Q

glossopharyngeal injection needle size

A

25ga

26
Q

glossopharyngeal injection drug

A

2% lidocaine

27
Q

glossophargyneal injection volume

A

2-5 mL

28
Q

glossopharyngeal injection onset

A

10-20 mins

29
Q

glossopharyngeal injection duration

A

2-5 hrs

30
Q

SLN block patient positioning

A

extend neck
displace hyoid bone

31
Q

SLN block needle insertion

A

greater cornu of hyoid bone

32
Q

SLN block needle size

A

25ga

33
Q

why do you aspirate before injecting SLN?

A

to aovid injection into superior laryngeal artery

34
Q

SLN block needle advance

A

walk needle off bone inferiorly

35
Q

SLN block drug dose

A

2mL of 2% lidocaine

36
Q

SLN nerve block anesthetizes

A

internal SLN (sensory)
external SLN (motor)

37
Q

RLN/transtracheal block indication

A

glottic closure reflex

38
Q

which pts are direct RLN blocks CI

A

all pts due to risk of bilateral vocal cord paralysis and airway obstruction

39
Q

transtracheal block needle insertion

A

through cricothyroid membrane

40
Q

transtracheal block needle gauge

A

22 ga

41
Q

when do you stop advancing needle for transtracheal block

A

aspirate on syringe while advancing
stop advancing when you see bubbles

42
Q

transtracheal block drug/dose

A

5 mL of 4% lidocaine

43
Q

how should you inject the LA for transtracheal?

A

rapid to encourage coughing and spread of the anesthetic

44
Q

transtracheal block onset

A

5-15 mins

45
Q

transtracheal block duration

A

2 hrs

46
Q

sedation options for awake intubations

A

dexmedetomidine
remi
robinul (dry mouth out)
ketamine (preserve respiratory drive)

47
Q

awake DL sedation

A

versed
remifentanil bolus
cetacaine gargel

Fa: Anatomy 2 (16 decks)

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