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Exam (elaborations)

California Rda Law & Ethics Exam – 200 Practice Questions, Answers & Rationales

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Master California’s RDA Law and Ethics Exam with this focused 200-question guide—covers scope of practice, supervision levels, infection control, mandated reporting, HIPAA, and real-world scenarios. Each answer includes a detailed rationale to reinforce critical legal and ethical concepts. Pass with confidence or use rationales to learn from every question. Get exam-ready today!

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RDA Law & Ethics Exam Q&A – Latest

Edition | 100% PASS Study

Guide with Practice Questions, Correct

Answers & Detailed Explanations Passing

the California Registered Dental Assistant

(RDA) Law and Ethics Exam is a crucial

step tow

Question 1

Scenario: A new dental assistant has just been hired at a busy

general practice. The supervising dentist is preparing to leave

the room to check on another patient. The assistant asks if they

can begin taking a preliminary impression for a crown while the

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dentist is gone. Which of the following best describes the legal

status of an unlicensed dental assistant?

A) An unlicensed dental assistant may perform any procedure

under indirect supervision.

B) An unlicensed dental assistant is not recognized by the Dental

Board of California and may not

B) An unlicensed dental assistant is not recognized by the Dental

Board of California and may not treat patients.

C) An unlicensed dental assistant may perform basic supportive

dental procedures under the supervision of a licensed dentist.

D) An unlicensed dental assistant may perform all duties of an

RDA as long as they have completed a board-approved course.

Answer: C

Explanation: According to California Business and Professions

Code (BPC) section 1750(a), a dental assistant is an individual

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who, without a license, may perform basic supportive dental

procedures under the supervision of a licensed dentist.

Rationale: Unlicensed dental assistants are legally recognized

and may perform specified basic supportive procedures, but

they cannot perform duties restricted to licensed RDAs. The

supervising dentist is directly responsible for determining the

assistant’s competency to perform these procedures under the

dentist's supervision.




Question 2

Scenario: During a staff meeting, the office manager asks the

team to define "basic supportive dental procedures" to ensure all

unlicensed staff are working within their legal limits. Which of the

following is a defining characteristic of a basic supportive dental

procedure?

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A) It can be performed with or without supervision.

B) It has technically elementary characteristics, is completely

reversible, and is unlikely to cause a hazardous condition.

C) It involves irreversible alteration of the tooth structure.

D) It requires a minimum of two years of formal training.

Answer: B

Explanation: BPC section 1750(a) explicitly states that “basic

supportive dental procedures” are those that have technically

elementary characteristics, are completely reversible, and are

unlikely to precipitate potentially hazardous conditions for the

patient being treated.

Rationale: This definition ensures that unlicensed assistants only

perform low-risk, reversible tasks. Irreversible procedures

(placement of restorations, administration of anesthetic, etc.) are

strictly reserved for licensed professionals.

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