Anesthesia Part III Flashcards

1
Q

Maxillary Incisors are innervated by what nerve?

What type of injection would you do if you want to anesthetize the soft tissues?

A

Nasopalatine

Nasopalatine (don’t need to go into Foramen)

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2
Q

If a pt gets an electric shock with IA, what has happened?

A

Needle has touched the nerve

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3
Q

What is a long acting LA w/out a vasoconstrictor?

A

Prilocaine

*mepivacaine is short acting

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4
Q

What nerve innervates the Maxillary PM’s?

What injection for the Maxillary PM’s?

A

MSA

MSA, AMSA, ASA (not PSA)

*the nerve is the MSA, the injection could be previous 3

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5
Q

What is the volume an anesthetic cartridge?

What is the volume of the anesthetic solution?

A
  1. 0 mL

1. 8 mL

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6
Q

What injection are most concerned about having a Local Complication?

Why?

A

PSA

Venous Plexus

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7
Q

3 reactions to Intravenous Epi injection:

A

Fearful

Palpitations

Increased BP

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8
Q

Where should you inject if a pt has an infection?

A

Inject away from site

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9
Q

If the Mx 1st molar is infected, what type of injection should you do?

*what shouldn’t do?

A

PSA (away from site)

*not infiltration

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10
Q

What 2 things are being anesthetized in an IA block?

What is anesthetized w/ Lingual and Long buccal?

A

Mandibular teeth on that side (central incisor to distal molar), soft tissue anterior to the molars

Tongue, buccal soft tissues of molars

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11
Q

What is the position of the thumb when giving an IA?

A

Coronoid notch, vestibule of soft tissue

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12
Q

What 4 nn. does the Gow Gates anesthetize?

A

Lingual

IA

Long Buccal (75%)

Mental

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13
Q

What injection is most likely to produce a positive aspiration?

Which is most likely to produce hematoma?

A

IA

PSA

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14
Q

What do you do with a positive aspiration?

Withdraw needle?

A

Change location

Yes if too much blood in cartridge and can’t see

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15
Q

What is the challenge with Mandibular Infiltration?

What is the exception to this rule?

A

Dense Cortical Bone

Articaine (don’t know why this workd)

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16
Q

Where is the Lingual n. in relation to the IA n.?

A

Anterior and Medial

*get as withdraw from IA block

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17
Q

What is the reason for giving a Long Buccal?

A

Buccal soft tissues of Molars

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18
Q

How much solution is administered for the IA (keeping in mind we have to give Long Buccal/Lingual on the way out)?

A

1.4 - 1.5 mL

3/4 cartridge

19
Q

Where is the Long Buccal n.?

2 data points

A

External Oblique Ridge

Cusps of the Mandibular Molars

20
Q

How far is penetration for the Long Buccal n.?

A

2-3 mm

*when touch bone

21
Q

Where is the barrel of the syringe when administering an IA?

A

Contralateral PM’s

22
Q

What is the depth of penetration for a PSA?

A

16 mm

23
Q

What is the depth of penetration for an IA?

If you contact bone too soon, you get no anesthesia and _____

A

20 - 25 mm

potentiate drug overdose

24
Q

What is a major contributor to missing the IA by going too deep?

*proper technique is contacting bone, backing out ___mm, depositing

A

Hand moves forward

1 mm

25
Q

What injection has the highest degree of failure?

A

IA

26
Q

What is the opening of the needle (not the bevel)?

How is it measured?

A

Lumen

gauge

*large means small

27
Q

How far above the Mandibular Occlusal Plane do we give the IA injection?

A

1.5 cm

15 mm

28
Q

How long is the Long Needle?

How long is the Short Needle?

A

32 mm

29
Q

What needle breaks?

A

30 gauge

sometimes the 27

30
Q

Why are Blocks better than Infiltrations?

A

Less injections, Less drug delivered

31
Q

What method of anesthetic delivery is prone to OD?

A

Infiltrations

*b/c give more

32
Q

Working on a Maxillary 1st Molar with a PSA, pt reports sensitivity - what did we most likely miss?

What injection can we give?

A

MB root

ASA Nerve Block (which is different from ASA)

*MSA is another option, but won’t be on test

33
Q

2 most used Maxillary injections:

A

Infiltration

PSA

34
Q

PSA gets Molars, buccal soft tissues, and supporting bone, but not…

A

Palatal Soft tissues/Bone

35
Q

PSA gets the MB root of the Mx 1M __%

A

72%

36
Q

ASA infiltration:

ASA Nerve Block:

A

Incisors - Canine

Infraorbital (Incisors - MB root Mx 1M)

37
Q

AMSA location:

A

halfway between mid-palatal suture and FGM

between PM’s

38
Q

Greater Palatine NB location:

*Also V2

A

halfway between mid palatal suture and FGM

5 mm Anterior soft palate

39
Q

Nasopalatal NB location:

What is unique about this injection?

P-ASA goes where?

A

PM level, lateral to Incisive Papilla

Only bilateral

Into Incisive Foramen

40
Q

Long buccal Penetration site is distal to the 3rd Molar and contacts bone at ____ mm

A

2-3 mm

41
Q

Gow Gates gets IA, lingual, auriculotemporal, mylohyoid, and log buccal nn. - it is inserted close to what?

A

toward head of condyle

42
Q

Vazirani - Akinosi NB gets IA, Lingual, Long Buccal, and is done blind, and has what complication?

*going after V3 on lingual aspect of mandibular ramus

A

Trismus

43
Q

Difference between Mental and Incisive NB?

A

Incisive palpated

44
Q

PDL injections and Intraosseous anesthesia - won’t use much

A

True