Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Regional 1 > Airway Blocks > Flashcards

Airway Blocks Flashcards

1
Q

Greatest predictors for difficult intubation

A

Age >55

OSA

Beard

Endentulous

Loose/missing teeth

Mandible fracture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Predictors for difficult mask ventilation

A

Age >55

Beard

Loose/missing teeth

Protuberant teeth

Mandible fracture

C-spine abnormality

Mouth opening < 3cm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

3 branches for nasal/facial innervation

A

Branches of trigeminal nerve

V1 ophthalmic

V2 maxillary

V3 mandibular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Innervates nasal turbinates and posterior 2/3 of nasal septum

A

Greater and lesser palatine V1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Innervates anterior 1/3 of nasal septum

A

Anterior ethmoidal V1 and V2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Innervates posterior 1/3 of tongue, vallecula, anterior surface of epiglottis, wall of pharynx, and tonsils

A

Glossopharyngeal CN IX

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Innervates laryngopharynx, intrinsic muscles of larynx

A

Vagus CN X

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Recurrent laryngeal nerve is branch off

A

Vagus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Responsible for gag reflex

A

CN IX glossopharyngeal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

4 nerves r/t airway that are branches of Vagus nerve

A

Superior laryngeal

Internal laryngeal

Recurrent laryngeal

External laryngeal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Gag reflex

Afferent innervation

Efferent innervation

A

Afferent- CN IX Glossopharyngeal

Efferent motor arc- CN X Vagus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Glottis closure reflex

Afferent

Efferent

A

Afferent- superior laryngeal

Efferent- recurrent laryngeal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Cough reflex

Afferent

Efferent

A

Both are CNX (recurrent laryngeal)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Premedication for airway blocks

A

Antisialogues

Sedatives (precedex best)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

4 methods of LA application for airway blocks

A

Topicalization

Nebulization

Atomization

Injected nerve blocks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Best antisialogues

Give _______ prior

A

Scopolamine

15-30 minutes prior

(Scoop>glyco>atropine)

17
Q

Precedex dosing for sedation for airway block

A

Bolus 1 mcg/kg over 10-20minutes

Infusion 0.2-0.7 mcg/kg/min

18
Q

If precedex unavailable what drugs should you use?

Which to avoid?

A

Ketamine 20-30mg
Versed 1-2mg

AVOID propofol (no reversal)

19
Q

LA for airway blocks fastest to shortest

A

Benzocaine (shortest duration)

Lidocaine

Cocaine

20
Q

Gold standard for topical anesthesia of nasopharynx

A

Cocaine

Max dose 1.5 mg/kg or 100mg

21
Q

Benzocaine has potential of causing

A

Methemoglobinemia

22
Q

If pt HTN or CAD what should you use for airway LA

A

Affinity (less tachycardia and HTN)

23
Q

Lidocaine for airway LA

A

2-4% with epi 1:200,000

24
Q

Atomization of LA gets

A

Nasopharynx and oropharynx

25
Q

Nebulized lidocaine gets what structures

A

Airway and trachea

26
Q

Injected airway nerve blocks

Nasopharynx

A

Topicalization only

Neosynephrine/Afrin

Cocaine or lidocaine soaked gauze

27
Q

Injected airway nerve blocks

Glossopharyngeal

A

Intra-oral approach

Covers upper airway

28
Q

Injected airway nerve blocks

Superior laryngeal nerve block bilaterally

A

Covers epiglottis, base of tongue, and cords

29
Q

Injected airway nerve blocks

Transtracheal recurrent laryngeal nerve block covers

A

Below the cords and carina

30
Q

Glossopharyngeal intra-oral approach method

A

Base of palatopharyngeal pillars

2-3 cc each side in gutter

Highly vascular so aspirate

CONTRAINDICATED IN COAGULOPATHIC PATIENTS

31
Q

Landmarks for airway blocks

A

Cricoid cartilage

Thyroid cartilage

Hyoid bone

Comu of hyoid bone

32
Q

Superior laryngeal nerve block method

A

Make contact with greater Cornu of hyoid bone, walk off inferior and direct caudal

2ml LA bilat

Aspirate (if air withdraw until in cartilage then inject)

33
Q

Transtracheal block provides anesthesia for

A

Sensory fibers below vocal cords including carina

34
Q

Transtracheal block methods

A

Enter cricothyroid membrane

20G angiocath placed

Aspirate for air

Inject 4-5 ml 4% Lidocaine

35
Q

Step by step method for orotracheal fiberoptic intubation

A

Antisialogogue

Judicious sedation

Benzocaine or 4% lido for oral cavity and pharynx

2% lido on nasal trumpet in mouth
- advance Q2-3 minutes

Advance bronchoscope until see cords

Inject 2 ml LA epiglottis wait 15 sec

Inject 1 ml when through cords

Inject 2 ml when under cords

Advance until see carina

Advance ETT

Regional 1 (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions