CPC Study Guide 2026

Everything you need to pass the CPC exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

📚 CPC Topics to Study (22)

Drug Testing Protocols & Compliance Standards · 9 cards Privacy Protection & Ethical Practices · 9 cards Safety Procedures & Infection Control · 9 cards Specimen Collection Procedures & Chain of Custody · 9 cards Observed & Monitored Collections · 7 cards Observed & Monitored Collections · 7 cards Observed & Monitored Collections · 7 cards CPC Adulteration & Specimen Validity Testing · 6 cards CPC Adulteration & Specimen Validity Testing · 6 cards CPC Adulteration & Specimen Validity Testing · 6 cards CPC Documentation & Reporting Requirements · 6 cards CPC Documentation & Reporting Requirements · 6 cards CPC Documentation & Reporting Requirements · 6 cards CPC Donor Identification & Verification · 6 cards CPC Donor Identification & Verification · 6 cards CPC Donor Identification & Verification · 6 cards CPC Quality Assurance & Laboratory Procedures · 6 cards CPC Quality Assurance & Laboratory Procedures · 6 cards CPC Quality Assurance & Laboratory Procedures · 6 cards CPC Workplace Drug Testing Regulations (DOT & Non-DOT) · 6 cards CPC Workplace Drug Testing Regulations (DOT & Non-DOT) · 6 cards CPC Workplace Drug Testing Regulations (DOT & Non-DOT) · 6 cards

✍️ Sample CPC Questions & Answers

1. Under DOT Part 40, direct observed collection is required for which specific test category?

✓ Follow-up testing ordered by a Substance Abuse Professional (SAP)

Follow-up tests ordered by a SAP after return-to-duty always require direct observation under DOT Part 40.

2. What is the purpose of a 'return-to-duty' drug test under DOT regulations?

✓ To ensure a safety-sensitive employee who tested positive has tested negative before returning to safety-sensitive duties

A return-to-duty test confirms that an employee who previously violated drug testing rules is now drug-free before resuming safety-sensitive functions.

3. Which of the following substances is a common adulterant that some donors attempt to use to invalidate a drug test?

✓ Bleach or oxidizing agents introduced into the specimen cup

Bleach and oxidizing agents are introduced into the specimen by the donor to destroy drug metabolites, and the laboratory's validity tests are designed to detect these substances.

4. When can donor information be shared?

✓ Only with authorized individuals

Donor information can only be shared with authorized individuals, typically those with a legitimate need-to-know as defined by regulations (e.g., DOT) or explicit donor consent. This includes the employer's Designated Employer Representative (DER) and the Medical Review Officer (MRO). Sharing information with unauthorized parties, such as family members or coworkers, is a breach of confidentiality and privacy laws.

5. How long should a donor be given to provide a urine specimen during a shy bladder situation?

✓ 3 hours

In a shy bladder situation, a donor should be given up to three hours to provide a urine specimen. During this time, the donor is allowed to drink a reasonable amount of fluids (up to 40 ounces) under the collector's observation. This protocol ensures the donor has adequate opportunity to produce a specimen while preventing excessive fluid intake that could dilute the sample.

6. What is the acceptable pH range for a valid urine specimen in federal drug testing?

✓ 4.0 to 11.0

Under 49 CFR Part 40, a urine specimen with a pH outside the range of 4.0 to 11.0 is reported as invalid due to incompatibility with normal human physiology.

🎯 Free CPC Practice Tests

Specimen Collection Procedures & Chain of Custody · 9 questions Drug Testing Protocols & Compliance Standards · 9 questions Privacy Protection & Ethical Practices · 9 questions Safety Procedures & Infection Control · 9 questions Observed & Monitored Collections · 7 questions Observed & Monitored Collections · 7 questions Observed & Monitored Collections · 7 questions CPC Donor Identification & Verification · 6 questions CPC Donor Identification & Verification · 6 questions CPC Donor Identification & Verification · 6 questions

📖 CPC Guides & Articles

Your CPC Study Path

1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation

🃏 Flashcards (147)