Local Anesthesia For Dental Professionals 2nd Edition By Bassett – Test Bank

True or false

1) Informed consent should be obtained from a patient or guardian prior to administering injections.

1. A) True
2. B) False

Answer: A

Objective: 2

2) The deposition site for a nerve block injection is at a greater distance from the penetration site than for a field block or infiltration injection.

1. A) True
2. B) False

Answer: A

Objective: 6

 

3) The greater the distance from penetration to deposition site, the greater the potential for deviation of the needle.

1. A) True
2. B) False

Answer: A

Objective: 6

 

4) False-negative aspirations typically occur when a clinician has failed to develop adequate negative pressure with the thumb ring.

1. A) True
2. B) False

Answer: B

Explanation: B) False-negative aspiration occurs when a bevel is in contact with a vessel wall. The negative pressure retracts the vessel wall into the lumen of the needle, blocking the flow of blood through the needle into the cartridge.

Objective: 7

 

5) The two most important patient safety steps during an injection are locating the penetration site and deposition sites.

1. A) True
2. B) False

Answer: B

Explanation: B) The two most important patient safety steps of an injection are slow administration and aspiration.

Objective: 7

 

6) The first step of the Standard Operating Procedure for all injections is locating and preparing armamentarium.

1. A) True
2. B) False

Answer: B

Explanation: B) Thorough patient evaluation is the first step in the Standard Operating Procedures for all injections. After consideration of all precautions, contraindications, and necessary modifications, appropriate injection techniques and anesthetic drugs are selected.

Objective: 7

7) A patient’s head should be in a position higher than the heart for comfort during injections.

1. A) True
2. B) False

Answer: B

Explanation: B) Placing patients in supine positions during injections provides physiological support during stress and is recommended for the management of medical emergencies.

Objective: 7

 

8) Most topical anesthetic agents will reach peak effectiveness in about 5 minutes.

1. A) True
2. B) False

Answer: B

Explanation: B) Most topical anesthetic agents will reach peak effectiveness in about 1 minute.

Objective: 7

 

9) Gently pulling the mucosa taut will ease penetration of the needle and establish a point of stability for the syringe.

1. A) True
2. B) False

Answer: A

Objective: 7

 

10) Regardless of the amount of blood in a cartridge following positive aspiration, the best practice is to withdraw the needle and reinject.

1. A) True
2. B) False

Answer: B

Explanation: B) If an aspiration test results in a small trickle of blood or “wormlike” thread into the cartridge and does not obstruct clear vision of a subsequent aspiration, the needle can be repositioned slightly and aspiration can be repeated.

Objective: 711) If there are repeated positive aspirations at the same injection site, rescheduling should be considered.

1. A) True
2. B) False

Answer: A

Objective: 7