A 72-year-old female is brought to the clinic by her daughter due to concerns about her mother's memory. The daughter reports a 9-month history of increasing forgetfulness, difficulty managing finances, getting lost in familiar places, and occasional personality changes. The patient is able to perform basic activities of daily living (ADLs) but struggles with instrumental ADLs (IADLs). Her neurological exam is unremarkable. Which of the following is the most appropriate initial diagnostic approach?
- APerform a comprehensive geriatric assessment, including cognitive screening, laboratory workup, and functional assessment.
- BAdminister a Mini-Mental State Examination (MMSE) and refer to a neurologist.
- COrder a head CT scan immediately to rule out mass lesions.
- DPrescribe an acetylcholinesterase inhibitor and monitor for improvement.
Show answer & explanationAnswer & explanation
Correct answer: A. Perform a comprehensive geriatric assessment, including cognitive screening, laboratory workup, and functional assessment.
The patient's symptoms (progressive memory loss, IADL impairment, personality changes) are highly suggestive of dementia. A comprehensive geriatric assessment, which includes detailed cognitive screening (e.g., MoCA or MMSE), a full laboratory workup to rule out reversible causes (e.g., B12 deficiency, thyroid dysfunction, syphilis, depression), and a functional assessment, is the most appropriate initial diagnostic approach. This systematic evaluation helps to establish the diagnosis, identify potential reversible causes, and guide further management.
Why the other options are wrong
- B. Administering an MMSE is a good step, but referring directly to a neurologist without a basic workup for reversible causes is premature and bypasses the FNP's role in initial assessment.
- C. While a head CT is eventually part of the workup to rule out structural causes, it's not the immediate first step before a comprehensive history, cognitive screening, and lab work to identify reversible causes.
- D. Prescribing medication without a definitive diagnosis and thorough workup for reversible causes is inappropriate and could mask treatable conditions.
Dementia Initial Workup
The initial workup for suspected dementia involves a comprehensive evaluation to establish the diagnosis, identify reversible causes, and differentiate types of cognitive impairment.
- Includes detailed history from patient and collateral source.
- Cognitive screening (MMSE, MoCA) and functional assessment.
- Laboratory tests to rule out reversible conditions (e.g., B12, TSH, RPR).
- Neuroimaging (CT/MRI) to rule out structural causes (mass, hydrocephalus).
Memory trick: Dementia's Dance: Comprehensive Checkup First