Chapter 11: Administration of LA Agent

good luck

What kind of injection is being done at A?

HINT: Deposition directly at or near terminal nerve endings; one or two teeth

Infiltration

What kind of injection is being done at B?

Field block injection

What kind of injection is being done at C?

Nerve block injection

What does PREP stand for?

Prepare, rehearse, empower, praise

What are the two most important safety steps in the delivery of LA agents?

Aspiration test and slow delivery

What does a positive aspiration test result in?

Blood visible in the cartridge

What must be included in the patient’s record?

Date of administration

Type of drug(s) administered (topical/injectable)

Injection(s) administered (area of delivery)

Total volume of drug(s) administered

Results of aspiration “positive” (+) or “negative” (-)

What is a negative aspiration?

No blood is drawn into the cartridge, requires no corrective action

What is a false negative aspiration?

The bevel is at a vessel wall and the negative pressure retracts the wall and blocks the flow of blood into the cartridge

A technique that deposits anesthetic solution near the larger terminal nerve branches for treatment near the site of an injection is called:

Field block injection

Which one of the following describes the target site for local anesthetic solutions?

Deposition site

The first step in the administration of local anesthetic solutions is to:

Assess the patient before proceeding

A primary benefit of orienting needle bevels toward bone during injections is that it:

Reduces trauma to the periosteum when bone is contacted

Which one of the following is the most appropriate local anesthesia patient record entry?

10/21/2015: Review Health History. BP 120/80. 2 cartridges (3.6mL) 2% lidocaine (72mg), 1:100,00 (0.036mg), Rt IA, LB, (-) aspiration. No adverse reactions.

When is it safe to deposit local anesthetic solution?

A. After a negative aspiration, where no blood is drawn into the cartridge.

B. After a negative aspiration, following a positive aspiration where blood was visible in the cartridge only as a small trickle of blood or “worm-like” thread.

C. Following a positive aspiration that obscures the results of subsequent aspirations.

A and B

The most important safety step(s) during a local anesthetic injection is/are:

To aspirate before depositing and to administer drugs slowly

Upon completion of an injection, the most important subsequent step is to:

Make the needle safe with a one-handed technique