Clinician handoff
Brain Fog: First-Pass Clarity Code Summary
Designed for a short primary-care, neurology, or integrative visit when the main problem is persistent brain fog and the patient needs a concise way to discuss likely patterns, red flags, and the first layer of testing.
Most useful history points
- •When the fog started and whether it was sudden, post-viral, gradual, or tied to a medication change.
- •Sleep story: snoring, witnessed apneas, unrefreshing sleep, drifting schedule, and morning headaches.
- •Meal-linked crashes, orthostatic symptoms, menstrual or menopause timing, and recent infection history.
- •All medications, OTC antihistamines, supplements, and obvious environmental exposures.
Red flags to escalate
- •Sudden confusion, facial droop, focal weakness, aphasia, seizure, or severe new headache.
- •Rapidly progressive decline, personality change, or confusion with fever.
- •Brain fog that remains unexplained after basic sleep, thyroid, ferritin, B12, and medication review.
First-pass tests often worth discussing
- •CBC, ferritin, vitamin B12, folate, vitamin D, TSH, and Free T4.
- •Sleep testing when there is snoring, apnea suspicion, or waking unrefreshed despite enough hours in bed.
- •Orthostatic vitals or autonomic review when upright posture clearly worsens symptoms.
- •PHQ-9 and GAD-7 when anxiety, depression, panic, or trauma load may be amplifying the cognitive burden.
Questions worth asking
- •Which diagnosis best fits the pattern: sleep-disordered breathing, medication burden, post-viral illness, thyroid dysfunction, ferritin depletion, autonomic dysfunction, or mood amplification?
- •Can we interpret thyroid function as a panel instead of using TSH alone if symptoms are strong?
- •What is the clearest next test instead of ordering everything at once?
- •If first-pass testing is unrevealing, which specialist or second-tier workup should come next?
Peer-reviewed references