AADC/ADC COMPLETE 2026 EXAM QUESTIONS AND VERIFIED
ANSWERS – 100% GUARANTEED PASS COMPLETE A+ GUIDE FOR
ADDICTION COUNSELOR CERTIFICATION |IC&RC AADC
(ADVANCED ALCOHOL AND DRUG COUNSELOR) & ADC (ALCOHOL
AND DRUG COUNSELOR) LATEST UPDATE
EXAM STRUCTURE & BLUEPRINT OVERVIEW (IC&RC 2026)
AADC EXAM DOMAINS AND WEIGHTING:
| Domain I: Screening, Assessment, and Engagement | 22% | Q 1-66
| Domain II: Treatment Planning, Collaboration, Referral| 24% | Q 67-138
| Domain III: Counseling and Education | 30% | Q 139-228
| Domain IV: Professional Responsibilities & Ethics | 24% | Q 229-300
ADC EXAM DOMAINS AND WEIGHTING:
| Domain I: Scientific Principles & Co-Occurring | 25% | Q 1-75
| Domain II: Evidence-Based Screening & Assessment | 20% | Q 76-135
| Domain III: Evidence-Based Treatment & Counseling | 30% | Q 136-225
| Domain IV: Professional, Ethical, & Legal Resp. | 25% | Q 226-300
SECTION 1: SCREENING, ASSESSMENT, ENGAGEMENT & SCIENTIFIC PRINCIPLES
(Questions 1 - 75)
Q1. A 45-year-old patient presents with dilated pupils, tachycardia, diaphoresis,
and agitation. Which substance is most likely responsible?
A) Alcohol
B) Opioids
C) Cocaine
D) Benzodiazepines
E) Cannabis
Answer: C
Explanation: Cocaine is a sympathomimetic stimulant causing sympathetic
activation. Opioids cause miosis; alcohol and benzos are CNS depressants.
Q2. A patient in opioid withdrawal is most likely to exhibit:
A) Seizures and delirium
B) Lacrimation, rhinorrhea, and piloerection
C) Tachycardia and hypertension only
D) Hallucinations and fever
E) Respiratory depression
Answer: B
1
,Explanation: Opioid withdrawal features autonomic hyperactivity: lacrimation,
rhinorrhea, piloerection, yawning, mydriasis, muscle aches. Seizures occur
in alcohol/BZD withdrawal.
Q3. Which neurotransmitter system is primarily responsible for the rewarding
effects of most drugs of abuse?
A) Serotonin
B) GABA
C) Dopamine (mesolimbic pathway)
D) Norepinephrine
E) Acetylcholine
Answer: C
Explanation: The mesolimbic dopamine pathway (VTA to nucleus accumbens) is
the primary reward pathway. Dopamine release mediates euphoria and
reinforcement.
Q4. A patient with alcohol use disorder develops confusion, ataxia, and
nystagmus after 3 days of abstinence. This is most consistent with:
A) Delirium tremens
B) Wernicke's encephalopathy
C) Korsakoff's syndrome
D) Alcohol withdrawal seizures
E) Hepatic encephalopathy
Answer: B
Explanation: Wernicke's encephalopathy (thiamine deficiency) presents with
the classic triad: confusion, ataxia, and ophthalmoplegia/nystagmus. It is
a medical emergency requiring IV thiamine.
Q5. The half-life of methadone is approximately:
A) 4-6 hours
B) 12-24 hours
C) 24-36 hours
D) 48-72 hours
E) 5-7 days
Answer: C (or D). Methadone has a half-life of 24-36 hours on average,
but can be up to 48 hours in some individuals. Answer: C.
Q6. Buprenorphine is classified as a:
2
,A) Full mu-opioid agonist
B) Partial mu-opioid agonist
C) Mu-opioid antagonist
D) Kappa-opioid agonist
E) Sigma-opioid agonist
Answer: B
Explanation: Buprenorphine is a partial mu-opioid agonist with a "ceiling
effect," reducing the risk of respiratory depression compared to full agonists.
Q7. Naloxone (Narcan) reversal of opioid overdose typically lasts:
A) 15-30 minutes
B) 1-2 hours
C) 4-6 hours
D) 12 hours
E) 24 hours
Answer: A
Explanation: Naloxone has a short half-life (30-60 minutes), shorter than
most opioids. Patients may re-overdose after it wears off, requiring
monitoring or repeat dosing.
Q8. Which of the following is a benzodiazepine used for alcohol withdrawal?
A) Clonidine
B) Chlordiazepoxide
C) Carbamazepine
D) Haloperidol
E) Propranolol
Answer: B
Explanation: Chlordiazepoxide (Librium) and diazepam are long-acting
benzodiazepines used in alcohol withdrawal management. Lorazepam is used
in liver disease.
Q9. Disulfiram (Antabuse) works by:
A) Blocking mu-opioid receptors
B) Inhibiting aldehyde dehydrogenase
C) Acting as a serotonin antagonist
D) Blocking dopamine receptors
E) Inhibiting GABA transaminase
Answer: B
3
, Explanation: Disulfiram inhibits aldehyde dehydrogenase, causing acetaldehyde
accumulation when alcohol is consumed, leading to flushing, nausea,
palpitations, and severe discomfort.
Q10. Naltrexone is contraindicated in patients who:
A) Are on methadone maintenance
B) Have liver cirrhosis
C) Are actively using opioids or in acute withdrawal
D) Are pregnant
E) Have a history of depression
Answer: C
Explanation: Naltrexone is an opioid antagonist. It will precipitate acute
withdrawal if administered to opioid-dependent patients who are still using.
It requires 7-10 days opioid-free.
Q11. Acamprosate (Campral) is most effective for:
A) Opioid craving
B) Alcohol craving (maintaining abstinence)
C) Benzodiazepine withdrawal
D) Stimulant abuse
E) Nicotine cessation
Answer: B
Explanation: Acamprosate modulates glutamate/NMDA activity and reduces
alcohol craving, particularly in post-acute withdrawal, helping maintain
abstinence.
Q12. The CIWA-Ar scale is used to assess:
A) Opioid withdrawal severity
B) Alcohol withdrawal severity
C) Depression severity
D) Anxiety severity
E) Pain severity
Answer: B
Explanation: Clinical Institute Withdrawal Assessment for Alcohol (CIWA-Ar)
is a 10-item scale to quantify alcohol withdrawal severity.
Q13. Which substance withdrawal is potentially life-threatening due to
seizures and delirium?
4
ANSWERS – 100% GUARANTEED PASS COMPLETE A+ GUIDE FOR
ADDICTION COUNSELOR CERTIFICATION |IC&RC AADC
(ADVANCED ALCOHOL AND DRUG COUNSELOR) & ADC (ALCOHOL
AND DRUG COUNSELOR) LATEST UPDATE
EXAM STRUCTURE & BLUEPRINT OVERVIEW (IC&RC 2026)
AADC EXAM DOMAINS AND WEIGHTING:
| Domain I: Screening, Assessment, and Engagement | 22% | Q 1-66
| Domain II: Treatment Planning, Collaboration, Referral| 24% | Q 67-138
| Domain III: Counseling and Education | 30% | Q 139-228
| Domain IV: Professional Responsibilities & Ethics | 24% | Q 229-300
ADC EXAM DOMAINS AND WEIGHTING:
| Domain I: Scientific Principles & Co-Occurring | 25% | Q 1-75
| Domain II: Evidence-Based Screening & Assessment | 20% | Q 76-135
| Domain III: Evidence-Based Treatment & Counseling | 30% | Q 136-225
| Domain IV: Professional, Ethical, & Legal Resp. | 25% | Q 226-300
SECTION 1: SCREENING, ASSESSMENT, ENGAGEMENT & SCIENTIFIC PRINCIPLES
(Questions 1 - 75)
Q1. A 45-year-old patient presents with dilated pupils, tachycardia, diaphoresis,
and agitation. Which substance is most likely responsible?
A) Alcohol
B) Opioids
C) Cocaine
D) Benzodiazepines
E) Cannabis
Answer: C
Explanation: Cocaine is a sympathomimetic stimulant causing sympathetic
activation. Opioids cause miosis; alcohol and benzos are CNS depressants.
Q2. A patient in opioid withdrawal is most likely to exhibit:
A) Seizures and delirium
B) Lacrimation, rhinorrhea, and piloerection
C) Tachycardia and hypertension only
D) Hallucinations and fever
E) Respiratory depression
Answer: B
1
,Explanation: Opioid withdrawal features autonomic hyperactivity: lacrimation,
rhinorrhea, piloerection, yawning, mydriasis, muscle aches. Seizures occur
in alcohol/BZD withdrawal.
Q3. Which neurotransmitter system is primarily responsible for the rewarding
effects of most drugs of abuse?
A) Serotonin
B) GABA
C) Dopamine (mesolimbic pathway)
D) Norepinephrine
E) Acetylcholine
Answer: C
Explanation: The mesolimbic dopamine pathway (VTA to nucleus accumbens) is
the primary reward pathway. Dopamine release mediates euphoria and
reinforcement.
Q4. A patient with alcohol use disorder develops confusion, ataxia, and
nystagmus after 3 days of abstinence. This is most consistent with:
A) Delirium tremens
B) Wernicke's encephalopathy
C) Korsakoff's syndrome
D) Alcohol withdrawal seizures
E) Hepatic encephalopathy
Answer: B
Explanation: Wernicke's encephalopathy (thiamine deficiency) presents with
the classic triad: confusion, ataxia, and ophthalmoplegia/nystagmus. It is
a medical emergency requiring IV thiamine.
Q5. The half-life of methadone is approximately:
A) 4-6 hours
B) 12-24 hours
C) 24-36 hours
D) 48-72 hours
E) 5-7 days
Answer: C (or D). Methadone has a half-life of 24-36 hours on average,
but can be up to 48 hours in some individuals. Answer: C.
Q6. Buprenorphine is classified as a:
2
,A) Full mu-opioid agonist
B) Partial mu-opioid agonist
C) Mu-opioid antagonist
D) Kappa-opioid agonist
E) Sigma-opioid agonist
Answer: B
Explanation: Buprenorphine is a partial mu-opioid agonist with a "ceiling
effect," reducing the risk of respiratory depression compared to full agonists.
Q7. Naloxone (Narcan) reversal of opioid overdose typically lasts:
A) 15-30 minutes
B) 1-2 hours
C) 4-6 hours
D) 12 hours
E) 24 hours
Answer: A
Explanation: Naloxone has a short half-life (30-60 minutes), shorter than
most opioids. Patients may re-overdose after it wears off, requiring
monitoring or repeat dosing.
Q8. Which of the following is a benzodiazepine used for alcohol withdrawal?
A) Clonidine
B) Chlordiazepoxide
C) Carbamazepine
D) Haloperidol
E) Propranolol
Answer: B
Explanation: Chlordiazepoxide (Librium) and diazepam are long-acting
benzodiazepines used in alcohol withdrawal management. Lorazepam is used
in liver disease.
Q9. Disulfiram (Antabuse) works by:
A) Blocking mu-opioid receptors
B) Inhibiting aldehyde dehydrogenase
C) Acting as a serotonin antagonist
D) Blocking dopamine receptors
E) Inhibiting GABA transaminase
Answer: B
3
, Explanation: Disulfiram inhibits aldehyde dehydrogenase, causing acetaldehyde
accumulation when alcohol is consumed, leading to flushing, nausea,
palpitations, and severe discomfort.
Q10. Naltrexone is contraindicated in patients who:
A) Are on methadone maintenance
B) Have liver cirrhosis
C) Are actively using opioids or in acute withdrawal
D) Are pregnant
E) Have a history of depression
Answer: C
Explanation: Naltrexone is an opioid antagonist. It will precipitate acute
withdrawal if administered to opioid-dependent patients who are still using.
It requires 7-10 days opioid-free.
Q11. Acamprosate (Campral) is most effective for:
A) Opioid craving
B) Alcohol craving (maintaining abstinence)
C) Benzodiazepine withdrawal
D) Stimulant abuse
E) Nicotine cessation
Answer: B
Explanation: Acamprosate modulates glutamate/NMDA activity and reduces
alcohol craving, particularly in post-acute withdrawal, helping maintain
abstinence.
Q12. The CIWA-Ar scale is used to assess:
A) Opioid withdrawal severity
B) Alcohol withdrawal severity
C) Depression severity
D) Anxiety severity
E) Pain severity
Answer: B
Explanation: Clinical Institute Withdrawal Assessment for Alcohol (CIWA-Ar)
is a 10-item scale to quantify alcohol withdrawal severity.
Q13. Which substance withdrawal is potentially life-threatening due to
seizures and delirium?
4
