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Quiz: Medical Treatments and Medications

Test your understanding of dementia medications and treatment approaches with these 10 review questions. Click "Show Answer" to check your work.

1. How do cholinesterase inhibitors work in the brain?

  1. They destroy amyloid plaques
  2. They prevent the breakdown of acetylcholine, increasing its availability at synapses
  3. They cure Alzheimer's disease
  4. They replace lost neurons
Show Answer

The correct answer is B. Cholinesterase inhibitors block the enzyme that breaks down acetylcholine, a neurotransmitter critical for memory and learning. Since acetylcholine is depleted in Alzheimer's disease, increasing its availability can modestly improve cognitive symptoms for some patients. These medications do not cure dementia, stop progression, or restore lost neurons, but they may provide meaningful benefit.

Concept Tested: Cholinesterase Inhibitors

2. Which of the following is NOT a cholinesterase inhibitor?

  1. Donepezil
  2. Rivastigmine
  3. Galantamine
  4. Memantine
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The correct answer is D. Donepezil, rivastigmine, and galantamine are all cholinesterase inhibitors. Memantine works differently by regulating glutamate, a different neurotransmitter involved in learning and memory. Memantine is approved for moderate to severe Alzheimer's disease, sometimes used in combination with a cholinesterase inhibitor.

Concept Tested: Memantine

3. Memantine works by:

  1. Increasing acetylcholine levels
  2. Regulating glutamate activity at NMDA receptors to reduce excitotoxicity
  3. Removing amyloid plaques
  4. Restoring sleep cycles
Show Answer

The correct answer is B. Memantine regulates glutamate activity at NMDA receptors. In Alzheimer's disease, excessive glutamate can overstimulate neurons and damage them, a process called excitotoxicity. Memantine blocks this harmful overactivation while still allowing normal signaling. It is typically prescribed for moderate to severe stages and has a different mechanism from cholinesterase inhibitors.

Concept Tested: Memantine

4. A family asks what realistic benefits they can expect from cholinesterase inhibitors. The best answer is:

  1. Complete reversal of dementia symptoms
  2. Modest, temporary improvement or stabilization of symptoms in some people, but not a cure
  3. Prevention of all future cognitive decline
  4. No benefit whatsoever
Show Answer

The correct answer is B. Cholinesterase inhibitors can provide modest, temporary improvement in cognition or daily function for some patients, or may slow the rate of decline. Not everyone responds, and benefits are usually measured in months rather than years. Setting realistic expectations helps families appreciate small improvements without feeling disappointed that the medication is not a cure.

Concept Tested: Cholinesterase Inhibitors

5. Which of the following is a common side effect of cholinesterase inhibitors?

  1. Nausea, diarrhea, or loss of appetite
  2. Improved vision
  3. Weight gain
  4. Hair loss
Show Answer

The correct answer is A. Gastrointestinal side effects such as nausea, diarrhea, vomiting, and loss of appetite are the most common side effects of cholinesterase inhibitors. Starting with a low dose and taking medication with food can reduce these effects. Other side effects may include muscle cramps, slow heart rate, and vivid dreams. Most people tolerate the medications well.

Concept Tested: Donepezil

6. Rivastigmine is unique among cholinesterase inhibitors because:

  1. It is only available as an injection
  2. It is available as a skin patch, which can reduce gastrointestinal side effects
  3. It is the only medication that cures dementia
  4. It works only in people under 60
Show Answer

The correct answer is B. Rivastigmine is available both as an oral formulation and as a transdermal skin patch. The patch delivers the medication steadily through the skin, which can reduce nausea and other gastrointestinal side effects. The patch is especially useful for people who have trouble swallowing pills or who experience stomach side effects with oral forms.

Concept Tested: Rivastigmine

7. What is symptom management in dementia care?

  1. Treating associated symptoms such as depression, sleep problems, and agitation to improve quality of life
  2. Ignoring all symptoms
  3. Curing the underlying disease
  4. Only using prescription medications
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The correct answer is A. Symptom management means addressing the many associated symptoms of dementia, including depression, anxiety, sleep problems, agitation, and pain, to improve quality of life. It involves both medication and non-drug approaches. While cognitive medications target the dementia itself, symptom management addresses the broader challenges that affect daily life and wellbeing.

Concept Tested: Symptom Management

8. A caregiver asks whether her father should participate in a clinical trial. Which statement is most accurate?

  1. Clinical trials are dangerous and should always be avoided
  2. Clinical trials offer access to experimental treatments and help advance research, but involve unknowns and require informed consent
  3. Clinical trials guarantee the participant will receive the real medication
  4. Participation in trials is only for young people
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The correct answer is B. Clinical trials test experimental treatments and can offer access to cutting-edge therapies, though there are no guarantees of benefit and participants may receive placebo. Trials advance research that could help future patients. Families should discuss participation with the medical team, review risks and benefits, and ensure full informed consent before enrolling.

Concept Tested: Clinical Trials

9. Why should antipsychotic medications be used cautiously in people with dementia?

  1. They are not effective at all
  2. They carry risks including increased mortality, stroke, and sedation, and are generally reserved for severe symptoms after other approaches fail
  3. They are too expensive
  4. They interact with all foods
Show Answer

The correct answer is B. Antipsychotic medications carry serious risks in older adults with dementia, including increased risk of death, stroke, falls, and excessive sedation. The FDA has issued black box warnings about these risks. Non-drug approaches should be tried first, and antipsychotics should be reserved for severe symptoms causing danger or extreme distress, used at the lowest effective dose for the shortest time.

Concept Tested: Symptom Management

10. Galantamine differs from donepezil primarily in that it:

  1. Does not treat Alzheimer's disease
  2. Has a dual mechanism that both inhibits cholinesterase and modulates nicotinic receptors
  3. Is only available by injection
  4. Works by blocking glutamate
Show Answer

The correct answer is B. Galantamine not only inhibits the enzyme that breaks down acetylcholine but also modulates nicotinic acetylcholine receptors, enhancing their response. This dual mechanism may provide additional benefit for some patients. Like other cholinesterase inhibitors, it is approved for mild to moderate Alzheimer's disease and has similar gastrointestinal side effects.

Concept Tested: Galantamine