Dementia
Pseudodementia is cognitive impairment from severe mood disorder that can mimic dementia and may be reversible with treatment.
What our notes say
- Pseudodementia is cognitive impairment from severe mood disorder that can mimic dementia and may be reversible with treatment. (Dictionary of Psychopathology)
- The best option for preventing dementia available currently is: (Psychiatry Year 4 CAT: June 2023, schizophrenia, dementia, eating disorders and )
- Normal pressure hydrocephalus (gait disturbance, incontinence and dementia) is also possible, so the question has more than one defensible option. (Psychiatry Year 6 CAT: October 2023, violence, defence mechanisms, hallucination)
- Neurocognitive: delirium, major neurocognitive disorder (dementia). (Classification of Mental Disorders)
- | Memory impairment | Deficits in acquisition, consolidation or retrieval of information; may point to delirium, dementia or depression. | (Dictionary of Psychopathology)
- Functional: immobility, dementia, poor access to a toilet. (Year 4 Gynaecology CAT 2 (MBOG 4212): 8 October 2021)
Study material on Dementia
- Psychiatry Year 4 CAT: June 2023, schizophrenia, dementia, eating disorders and psychopharmacology, 29 of 30 MCQs
- Neurodegenerative Prion Diseases: CJD, Pathology & Rapid Dementia
- Dictionary of Psychopathology
- EXAM: Basic Virology, Viral Replication, Prions & Slow Viruses, Poxviruses & VZV
- Psychiatry Year 6 CAT: October 2023, violence, defence mechanisms, hallucinations and sleep, 20 MCQs
- CNS History Taking & Neurological Exam Guide | Clinical Skills
- Medical Mycology Q&A Section B
Practice questions on Dementia
Pellagra, a disease characterized by dermatitis, diarrhea, and dementia, is caused by a deficiency of which vitamin?
- A. Vitamin B6 (Pyridoxine)
- B. Vitamin B3 (Niacin)
- C. Vitamin B12 (Cobalamin)
- D. Vitamin C (Ascorbic Acid)
Answer: B. Pellagra is caused by a severe deficiency of Niacin (Vitamin B3) or its precursor, tryptophan. Niacin is a component of NAD+ and NADP+, critical coenzymes in many metabolic reactions.
A 40-year-old man develops progressive choreiform movements and dementia. His father had similar symptoms. Which mutation is most likely? Huntington disease (autosomal dominant, CAG repeat expansion). ---
- CFTR deletion
- FBN1 mutation
- Trinucleotide repeat expansion in HTT gene
- TP53 mutation
- G6PD deficiency
Answer: C.