Exam 40: Local Anesthesia

The client is scheduled for scaling and root planing of the upper right quadrant. You have administered the ASA, MSA, GP, and NP using a short 27-gauge needle and now are preparing to do the PS a. Before administering the PSA, you draw the needle across a piece of sterile gauze and it becomes caught on the gauze. You should clear the needle from the gauze and:

A nerve is polarized or in a resting state when:

Symptoms of epinephrine overdose include all of the following except:

Topical anesthetic agents, such as benzocaine are applied before needle insertion to anesthetize the terminal nerve endings and thus promote client comfort. Thus a significant amount is needed to facilitate diffusion of the drug through the mucous membrane and can be reapplied numerous times due to the low toxicity of a topical medication.

Your client is a 56-year-old male who has a medical history of a heart attack 2 years prior and is taking blood pressure medication and a daily dose of aspirin. He is scheduled for one quadrant of scaling and root planing with local anesthesia (LA). His preanesthetic assessment would include:

Referring to the client in question 4 whose medical consult shows no contraindications to its use, what anesthetic would you chose for an appointment that is scheduled for 1 hour?

For each anesthetic, select short, medium, or long duration for pulpal and soft-tissue anesthesia, using each answer once only. A) Short duration B) Intermediate duration C) Long duration 1) Bupivacaine HCL 0.5% epinephrine 1:200,000 2) Mepivacaine HCL 3% 3) Lidocaine HCL 2% epinephrine 1:50,000

What is the next step when you aspirate and get a positive aspiration?

Which of the following are ways to decrease pain during an injection?

Amide local anesthetics undergo biotransformation in the:

What two branches of nerves descend from the infraorbital nerve?

Contraindications to local anesthetics and vasoconstrictors are divided into two categories: absolute and relative. Absolute contraindications require that the drug in question not be administered to the individual under any circumstances and a relative contraindication means that the drug in question may be administered to the client after careful weighing of the risk of using the drug against its potential benefit.

The bevel of the needle should:

All the following are advantages to the metallic breech loading Aspirating syringe except:

There is seldom a need to administer more than ____ cartridges during any appointment involving dental hygiene care, and the maximum number of cartridges of any type of anesthesia that the manufacturers recommend is ____.

The trigeminal nerve is the seventh and largest of the 12 cranial nerves. It has three divisions that include the ophthalmic (V₁), maxillary (V₂), and mandible (V₃).

Two newer developments in anesthetic solutions are buffering agents that decrease the burning or stinging sensation of an acidic solution and a vasodilator to shorten the time of soft tissue anesthesia; however, both types of anesthetic solutions require the mixing of these additives to the cartridge right before use.