CAS Pharmacology & Medication-Assisted Treatment Flashcards
6 cards from real CAS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CAS Pharmacology & Medication-Assisted Treatment flashcards as text
Tolerance, in the context of pharmacology, is defined as:
Answer: A decrease in response to a drug after repeated exposure, requiring higher doses to achieve the same effect
Tolerance is a pharmacological adaptation in which repeated drug exposure reduces the drug's effect, requiring increased doses to produce the original response.
Nicotine replacement therapy (NRT) products are FDA-approved to treat:
Answer: Tobacco use disorder
NRT products (patches, gum, lozenges, inhalers, nasal spray) are FDA-approved specifically for tobacco use disorder to reduce withdrawal symptoms and cravings during quit attempts.
Varenicline (Chantix) reduces nicotine craving and withdrawal by acting as a:
Answer: Partial nicotinic acetylcholine receptor agonist and antagonist
Varenicline partially stimulates nicotinic receptors to reduce cravings and withdrawal while simultaneously blocking nicotine from binding, reducing the reward of smoking.
Benzodiazepine withdrawal can be life-threatening because abrupt cessation may cause:
Answer: Seizures, delirium tremens, and cardiovascular collapse
Like alcohol, benzodiazepines act on GABA receptors, and abrupt cessation after dependence can produce severe CNS hyperexcitability, leading to seizures, delirium, and potentially fatal outcomes.
When a client taking MAT also uses illicit substances, the CAS should FIRST:
Answer: Explore the circumstances of the use without judgment and adjust the treatment plan accordingly
Relapse during MAT is clinically significant information that should prompt a collaborative, non-punitive assessment and treatment plan adjustment, as abrupt discharge increases overdose risk.
The primary pharmacological mechanism by which opioids produce euphoria and analgesia is activation of:
Answer: Mu-opioid receptors in the brain and spinal cord
Opioids produce their principal effects—analgesia, euphoria, and respiratory depression—by binding to mu-opioid receptors distributed throughout the brain, spinal cord, and peripheral nervous system.