Anesthesia Blocks Airway

Front 1

The three principal neural pathways of the Airways?

Back 1

1. Nasal/Nasopharyngeal Cavity – Maxillary branches of the Trigeminal Nerve (CN V)

2. Oropharyngeal - Glossopharyngeal Nerve (CN IX)

3. Laryngeal Cavity & Trachea - Branches of the Vagus Nerve (CN X)

Front 2

True or False? There is no single nerve that can be blocked to produce complete anesthesia of the airway

Back 2

True

Front 3

Which nerve innervates the Nasal/Nasopharyngeal Cavity ?

Back 3

Maxillary branches of the Trigeminal Nerve (CN V)

Front 4

Which nerve innervates the Oropharyngeal region?-

Back 4

Glossopharyngeal Nerve (CN IX)

Front 5

Which nerve innervates the Laryngeal Cavity & Trachea?

Back 5

Branches of the Vagus Nerve (CN X)

Front 6

What are the three branches of the Trigeminal Nerve (V)?

Back 6

V1 Opthalmic
V2 Maxillary
V3 Mandibular

Front 7

What steps are taken to provide anesthesia for the passage of a nasotracheal tube?

Back 7

*Application of long cotton-tipped applicators or wide cotton pledgets soaked in the local solution (lidocaine and cocaine or phenylephrine) are applied over the nasal mucosa by inserting applicators into both nares

Front 8

What nerves are blocked with pledgets for the passage of an NTT?

Back 8

Sphenopalatine (or Meckel’s ganglion)
Ethmoid nerve.

Front 9

What nerves are blocked for abolition of the gag reflex or hemodynamic response to laryngoscopy ?

Back 9

glossopharyngeal nerve (CN IX), vagus (CN X)
facial nerve (CN VII).

Front 10

Toxic dose of benzocaine?

Back 10

100 mg (may cause methemoglobinemia)

Front 11

What are four techniques to topicalize the tongue, and oropharyngeal area?

Back 11

1. Lidocaine gel on a tongue blade
2. Cetacaine spray to posterior pharynx
3. 4cc of 4% Lidocaine (or .5% tetracaine) in a nebulizer
4. Viscous Lidocaine swish and gargle.

Front 12

Where is the GLOSSOPHARYNGEAL nerve block done for post-op tonsilar pain?

Back 12

Palatoglossal arch--

Front 13

To block the internal (sensory) branch of the SLN, resulting in abolition of the gag reflex or hemodynamic responses to laryngoscopy or bronchoscopy.

Back 13

2 ml of 2% lidocaine with epinephrine is injected into the space between the thyrohyoid membrane and the pharyngeal mucosa.

Front 14

Where is the injection given for recurrent laryngeal nerve block for awake laryngoscopy, fiberoptic and/or retrograde intubation

Back 14

A catheter is placed midline thru the cricothyroid membrane, at an angle of 45 degrees, in a caudal direction- lidocaine is injected into the catheter to the back of the trachea at the end of expiration. On inhalation, the patient will cough the lidocaine upward, and spreading it over the trachea.

Front 15

What cranial nerve is affected by a Glossopharyngeal Nerve block
a) CN 7, 9 10
b) CN 10
c) CN 9 and 10
d) CN 9

Back 15

a) CN 7, 9, 10

Front 16

Sensation of the oral mucosa and oropharynx are supplied by branches of the:
a) glossopharyngeal nerve (CN IX),
b) vagus (CN X)
c) facial nerve (CN VII).
d) All of the above

Back 16

d) All of the above

Front 17

The anatomic area to which the anesthetist directs local anesthetic therapy for Recurrent Laryngeal Nerve block:
a) Nasopharynx, oropharynx, and hypopharynx
b) nasal cavity and posterior pharynx
c) base of tongue and back of throat
d) larynx, vocal cords and trachea

Back 17

d) larynx, vocal cords and trachea

Front 18

Methemoglobinemia, a complication of systemic toxicity associated with local anesthetics results in:
a) tachyphylaxis
b) anaphylaxis
c) circumoral numbness
d) cyanosis

Back 18

d) cyanosis