LA- Armamentarium
Which of the following needle gauges has the largest lumen diameter?
25
To maximize patient comfort and minimize tissue trauma, the needle should be changed after _______ injections on the same patient.
3 to 4
Which identifying mark is required by the ADA for all local anesthetic cartridges?
A standardized color-coded band on the plastic label
A bubble in the cartridge that is larger than 2 mm is harmlessly produced by nitrogen gas during the manufacturing process. A cartridge with a large bubble (>2 mm) can be used without complication.
Both statements are false
Harpoon disengagement may occur due to the folllowing EXCEPT?
Excessive engagement of the harpoon during set up
What type of needle is recommended to safely and effectively administer an injection where the target is far away from the insertion site?
Long, 25-gauge needle
Gauze 2×2 squares are a helpful supplement to the anesthetic armamentarium. Which of the following is NOT a function of a gauze 2×2?
Pressure anesthesia
As you are about to administer an injection, your needle tip inadvertently touches the patient's disposable bib (clean but not sterile). What should you do next?
Recap the needle with the one-hand scoop method, discard it and replace it with a new, sterilized needle. Proceed in administering the local anesthesia.
The American Dental Association has set forth criteria for the acceptance of local anesthetic syringes. Which of the following is NOT consistent with the ADA's standards?
The syringe must be disposable.
Routine maintenance of a reusable syringe includes inspection and replacement of a dull or bent harpoon
True
After arriving at the deposition site, you decide to redirect your needle to achieve effective anesthesia. Which of the following is an appropriate action?
Withdraw the needle completely, change the direction of the needle, penetrate, and readvance to the target location
Placing the local anesthetic cartridge in alcohol or sterilization solutions can cause ________.
a burning sensation during the injection, contamination of the local anesthetic solution, and corrosion of the aluminum cap (All of the choices)
The syringe designed to deliver a "virtually painless" injection of local anesthesia is the
computer-controlled anesthetic delivery device (CCLAD).
The _________ is a sharp tip attached to the internal end of the piston that embeds into the cartridge's rubber stopper.
harpoon
A needle with a ____________ is recommended for its ability to provide less deflection, greater accuracy, less needle breakage, and a more accurate aspiration.
larger gauge (25)
When breach-loading a cartridge into the syringe, the rubber stopper should _______.
load first
Pulling back on the thumb ring provides ____________ and produces an aspiration.
negative pressure
A _________ syringe is primarily used for PDL injections of single mandibular teeth where tissue resistance is pronounced
pressure
If the harpoon disengages during an aspiration, the clinician should
remove the syringe from the patient's mouth, remove the needle, and reengage the harpoon into the rubber stopper.
Patient discomfort is minimized through the use of a sharply beveled needle
true
When administering local anesthesia, the bevel of the needle should face the bone.
true
