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Local Anesthesia > Module 10 > Flashcards

Module 10 Flashcards

0
Q

What are the 4 causes of needle breakage?

A

Bending the needle
Inserting it to the hub
Pt jumps
Use of small needle (big gauge)

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1
Q

What type of problems happen most often with LA administration?
(Local or systemic)

A

Local

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2
Q

What does paraesthesia mean?

A

Persistent or prolonged anesthesia

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3
Q

Severe cases of paraesthesia usually go away within what time frame

A

2 months

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4
Q

What is the most common cause of paraesthesia?

A

Nicking a nerve

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5
Q

What percentage of LA is known to cause more paraesthesia cases

A

4%

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6
Q

Contaminated LA solution happens due to?

A

Soaking carpule in alcohol or cold sterile

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7
Q

What is the problem with soaking LA in alcohol or cold sterile?

A

Can kill the nerve

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8
Q

Define hyperesthesia

A

Increased Sensitivity to “noxious” stimuli

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9
Q

Define dysesthesia

A

Painful sensation to non-noxious stimuli

Reverse Anesthesia

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10
Q

What happens if someone experiences facial nerve paralysis

A

lA got deposited into parotid gland

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11
Q

Where is the parotid gland located

A

Posterior border of mandibular ramus

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12
Q

Signs of facial nerve paralysis (3)

A

Unilateral paralysis
Can’t close eye
Loss of motor function

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13
Q

What is a prolonged spasm of the jaw muscle?

A

Trismus

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14
Q

What muscle is in spasm during trismus

A

Massater

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15
Q

What causes trismus

A

Trauma to muscle or blood vessels in the infratemporal fossa

16
Q

What causes a hematoma

A

Nicking an artery or vein

17
Q

Where will a hematoma show up during a PSA injection

A

Inferior border of mandible

18
Q

An iA injection will cause swelling where?

A

Inside

19
Q

What is the number 1 reason for pain on injection

A

Careless technique

20
Q

What kind of lA solution can cause burning upon injection

A

Acidic Ph

21
Q

What are 3 other causes of burning upon injection of LA

A

Delivering too fast
Contaminated cartridge
Hot solution

22
Q

What is the recommended deposition time frame

A

1 ml/min

DONT exceed 1.8ml per minute

23
Q

What happens of LA drug is biotransformed too slow?

A

Systemic toxic effect

Local Anesthesia (7 decks)

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