What are the symptoms of conversion disorder?

Correct Answer: D

Rationale: The correct answer is D because conversion disorder can manifest in various ways, including involuntary movements, seizures, paralysis, abnormal gait, anesthesia, blindness, deafness, and other sensory deficits. These symptoms are not due to any known medical condition but are believed to be a result of psychological distress. Choices A, B, and C each describe common symptoms associated with conversion disorder, making them incorrect individually. Only by selecting option D can we encompass the range of symptoms typically seen in conversion disorder.

Correct Answer: A

Rationale: The correct answer is A: Anxiety. Serotonin is a neurotransmitter that plays a role in regulating mood and anxiety. An increase in serotonin levels is associated with decreased anxiety symptoms. In contrast, serotonin levels are often low in depression, schizophrenia, and Parkinson's disease, so choices B, C, and D are incorrect. In depression, serotonin deficiency is often implicated. Schizophrenia is linked to dopamine and glutamate imbalances, not serotonin. Parkinson's disease is associated with dopamine depletion in the brain, not serotonin. Thus, the correct answer is A based on the role of serotonin in anxiety regulation.

Correct Answer: B

Rationale: The correct answer is B because norepinephrine levels are decreased in depression. Norepinephrine is a neurotransmitter involved in mood regulation, arousal, and stress response. Low levels of norepinephrine have been linked to symptoms of depression. Incorrect choices: A: Norepinephrine levels are not typically associated with mania, anxiety, or schizophrenia. C: Parkinson's disease is associated with dopamine depletion, not norepinephrine. D: Alzheimer's disease is not directly related to norepinephrine levels.

Correct Answer: A

Rationale: The correct answer is A: Glutamate is a neurotransmitter involved in learning and memory. Glutamate is the most abundant excitatory neurotransmitter in the brain, playing a crucial role in synaptic plasticity, which underlies learning and memory processes. It facilitates communication between neurons, enhancing synaptic strength and promoting the formation of new neural connections. Choices B, C, and D are incorrect because glutamate's primary role is not in mood regulation, cognition, motivation, or pain perception, although it does play a role in various physiological functions.

Correct Answer: A

Rationale: The correct answer is A because primary prevention aims to prevent the occurrence of a disease or injury before it happens. Legislation to ban hazardous products directly addresses the root cause by eliminating the risk factor. Regular exams and screening (B), cardiac rehab programs (C), and support groups (D) are examples of secondary or tertiary prevention, which focus on early detection, management, and support after the disease or injury has occurred.