RDA Exam California Study Guide with Accurate Questions & Correct
Answers (Verified Answers) and Full Deep Expert Rationales | Latest
(2026/2027) Updated Version {JUST RELEASED}
1. Which law protects a patient's right to privacy regarding their
dental records?
A) OSHA
B) HIPAA
C) CDC
D) FDA
Correct Answer: B
Expert Rationale: HIPAA (Health Insurance Portability and Accountability
Act) is the federal law that protects a patient's right to privacy regarding their
dental records and all protected health information.
Test-Taking Tip: Patient privacy = HIPAA. Remember: HIPAA protects health
information.
2. Who is legally responsible for the actions of a registered dental
assistant during patient treatment?
A) The dental assistant
B) The supervising dentist
C) The patient
D) The dental office manager
Correct Answer: B
Expert Rationale: The supervising dentist is legally responsible for the actions
,of a registered dental assistant during patient treatment. The dentist supervises
and delegates duties to the assistant.
Test-Taking Tip: Supervising dentist = legal responsibility. Remember: The
dentist oversees all delegated duties.
3. What is the term for a legal document signed by a patient giving
permission for treatment?
A) Consent form
B) Release form
C) Informed consent
D) Waiver
Correct Answer: C
Expert Rationale: Informed consent is the legal document signed by a patient
giving permission for treatment after understanding the risks, benefits, and
alternatives.
Test-Taking Tip: Permission for treatment = informed consent. Remember:
Patient must understand risks and benefits.
4. Under California law, which task may an unlicensed dental
assistant never perform?
A) Taking radiographs
B) Applying fluoride
C) Coronal polishing
D) Coronal polishing
Correct Answer: D
Expert Rationale: Under California law, coronal polishing is a task that an
,unlicensed dental assistant may never perform. It requires licensure as a
registered dental assistant.
Test-Taking Tip: Unlicensed assistant = never perform coronal polishing.
Remember: This requires RDA licensure.
5. Which California regulation outlines the functions a dental
assistant can legally perform?
A) Health and Safety Code
B) Business and Professions Code
C) Labor Code
D) Civil Code
Correct Answer: B
Expert Rationale: The Business and Professions Code is the California
regulation that outlines the functions a dental assistant can legally perform. It
defines the scope of practice.
Test-Taking Tip: Scope of practice = Business and Professions Code.
Remember: This code defines what dental assistants can do.
6. A patient asks to see their dental records. What is the correct
response?
A) Refuse access
B) Allow access within 30 days
C) Allow access within 15 days per HIPAA
D) Require a court order
Correct Answer: C
Expert Rationale: Under HIPAA, patients have the right to access their dental
, records within 15 days. The dental office must provide access or copies upon
request.
Test-Taking Tip: Record access = 15 days per HIPAA. Remember: Patients
have the right to their records.
7. How often must RDAs renew their license in California?
A) Every year
B) Every 2 years
C) Every 3 years
D) Every 5 years
Correct Answer: B
Expert Rationale: RDAs must renew their license in California every 2 years.
Continuing education requirements must also be met during each renewal cycle.
Test-Taking Tip: RDA license renewal = every 2 years. Remember: Biennial
renewal.
8. What should a dental assistant do if they suspect a coworker is
under the influence at work?
A) Ignore it
B) Report it to the dentist or supervisor
C) Confront the coworker
D) Tell other coworkers
Correct Answer: B
Expert Rationale: If a dental assistant suspects a coworker is under the
influence at work, they should report it to the dentist or supervisor. This ensures
patient safety and appropriate intervention.
Answers (Verified Answers) and Full Deep Expert Rationales | Latest
(2026/2027) Updated Version {JUST RELEASED}
1. Which law protects a patient's right to privacy regarding their
dental records?
A) OSHA
B) HIPAA
C) CDC
D) FDA
Correct Answer: B
Expert Rationale: HIPAA (Health Insurance Portability and Accountability
Act) is the federal law that protects a patient's right to privacy regarding their
dental records and all protected health information.
Test-Taking Tip: Patient privacy = HIPAA. Remember: HIPAA protects health
information.
2. Who is legally responsible for the actions of a registered dental
assistant during patient treatment?
A) The dental assistant
B) The supervising dentist
C) The patient
D) The dental office manager
Correct Answer: B
Expert Rationale: The supervising dentist is legally responsible for the actions
,of a registered dental assistant during patient treatment. The dentist supervises
and delegates duties to the assistant.
Test-Taking Tip: Supervising dentist = legal responsibility. Remember: The
dentist oversees all delegated duties.
3. What is the term for a legal document signed by a patient giving
permission for treatment?
A) Consent form
B) Release form
C) Informed consent
D) Waiver
Correct Answer: C
Expert Rationale: Informed consent is the legal document signed by a patient
giving permission for treatment after understanding the risks, benefits, and
alternatives.
Test-Taking Tip: Permission for treatment = informed consent. Remember:
Patient must understand risks and benefits.
4. Under California law, which task may an unlicensed dental
assistant never perform?
A) Taking radiographs
B) Applying fluoride
C) Coronal polishing
D) Coronal polishing
Correct Answer: D
Expert Rationale: Under California law, coronal polishing is a task that an
,unlicensed dental assistant may never perform. It requires licensure as a
registered dental assistant.
Test-Taking Tip: Unlicensed assistant = never perform coronal polishing.
Remember: This requires RDA licensure.
5. Which California regulation outlines the functions a dental
assistant can legally perform?
A) Health and Safety Code
B) Business and Professions Code
C) Labor Code
D) Civil Code
Correct Answer: B
Expert Rationale: The Business and Professions Code is the California
regulation that outlines the functions a dental assistant can legally perform. It
defines the scope of practice.
Test-Taking Tip: Scope of practice = Business and Professions Code.
Remember: This code defines what dental assistants can do.
6. A patient asks to see their dental records. What is the correct
response?
A) Refuse access
B) Allow access within 30 days
C) Allow access within 15 days per HIPAA
D) Require a court order
Correct Answer: C
Expert Rationale: Under HIPAA, patients have the right to access their dental
, records within 15 days. The dental office must provide access or copies upon
request.
Test-Taking Tip: Record access = 15 days per HIPAA. Remember: Patients
have the right to their records.
7. How often must RDAs renew their license in California?
A) Every year
B) Every 2 years
C) Every 3 years
D) Every 5 years
Correct Answer: B
Expert Rationale: RDAs must renew their license in California every 2 years.
Continuing education requirements must also be met during each renewal cycle.
Test-Taking Tip: RDA license renewal = every 2 years. Remember: Biennial
renewal.
8. What should a dental assistant do if they suspect a coworker is
under the influence at work?
A) Ignore it
B) Report it to the dentist or supervisor
C) Confront the coworker
D) Tell other coworkers
Correct Answer: B
Expert Rationale: If a dental assistant suspects a coworker is under the
influence at work, they should report it to the dentist or supervisor. This ensures
patient safety and appropriate intervention.
