A 70-year-old woman with a known psychiatric history presents with depressed mood, poor oral intake, and minimal speech. Her relatives approach the nurse at the counter, asking what should be done next. What is the most appropriate initial action?

1. A

   Call for psychiatry consultation

2. B

   Check for dementia immediately

3. C

   Start an antidepressant at the counter

4. D

   Order basic labs and thyroid function tests

Appeared in: NORCET 9 Mains - 2025

Explanation

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• The primary principle in geriatric psychiatry is to first rule out medical or 'organic' causes for new or worsening psychiatric symptoms.
• Ordering basic labs and thyroid function tests is the essential first step to screen for common medical mimics of depression, such as hypothyroidism, electrolyte imbalances, infections, or vitamin deficiencies.
• This approach is known as 'medical clearance' and is a prerequisite for a definitive psychiatric diagnosis and treatment plan.
• As per evidence, conditions like endocrinopathies (e.g., thyroid abnormalities) and vitamin B12 deficiency are often associated with depression in older adults (SRC_2).
• For an acute exacerbation of a chronic problem, it is critical to ask 'why now?' and search for an undiagnosed medical illness, drug effect, or injury (SRC_3).

Why Other Options Were Wrong

• Option A: This action is premature. A psychiatrist will require the results of a medical workup before making an assessment to ensure the symptoms are not from a physical illness.
• Option B: Dementia is a diagnosis of exclusion and typically involves a gradual cognitive decline. The patient's acute presentation with poor intake warrants investigation for more immediate, reversible causes like delirium or a medical illness.
• Option C: This is unsafe, outside the nurse's scope of practice, and constitutes malpractice. Medication should never be started without a comprehensive assessment, diagnosis, and a valid prescription from a licensed provider.

Related Visual

• Visual 1: Flowchart: Diagnostic algorithm for an elderly patient presenting with depressive symptoms, starting with 'Rule out medical causes' (Labs, Physical Exam) -> 'Psychiatric Assessment' -> 'Dementia Screening'.

Clinical Relevance

• Nursing practice connection: Use the key finding related to Initial assessment and management of an elderly patient with depressive symptoms to guide bedside assessment, documentation, and the next nursing action.
• In geriatric nursing, always suspect a medical cause for any sudden change in mental status or behavior. This is a critical patient safety principle.
• Depression in the elderly can present atypically with more somatic complaints or cognitive symptoms (pseudodementia) rather than overt sadness.
• What if the patient also had a low-grade fever and mild confusion? This would heighten the suspicion for an infection, such as a urinary tract infection (UTI), which commonly presents as delirium in the elderly, and a urinalysis should be prioritized.

How to Approach the Question

• First, identify the patient population and setting: A 70-year-old woman with a psychiatric history presenting with acute changes.
• Recognize the core principle for this population: In elderly patients, new or worsening psychiatric symptoms must be investigated for underlying medical (organic) causes first.
• Evaluate each option against this principle. The correct action will be the one that addresses potential medical issues before jumping to a psychiatric conclusion.
• Eliminate option C as it is unsafe and outside the scope of nursing practice.
• Compare the remaining options. Ordering labs (D) is a diagnostic step to rule out medical causes. Calling a psychiatrist (A) and checking for dementia (B) are subsequent steps that should only happen after medical clearance.
• Therefore, ordering labs is the most appropriate initial action.

Concept Tested & Keywords

• Concept Tested: Initial assessment and management of an elderly patient with depressive symptoms.
• Stem keywords: 70-year-old, psychiatric history, depressed mood, poor oral intake, minimal speech, initial action
• Lead-in keywords: most appropriate
• Clinical cues: Age (70-year-old): Increases the likelihood of medical conditions presenting with psychiatric symptoms.
• Clinical cues: Poor oral intake: A red flag for dehydration and electrolyte imbalances, which can cause altered mental status.

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