Primary-care doctors who used the PrecivityAD2 blood test raised their Alzheimer's accuracy from 65% to 93% in patients with mild cognitive impairment or dementia. Specialists using the same test reached about 90% accuracy, putting primary care on equal footing. Mild cognitive impairment means noticeable memory or thinking changes that do not block daily tasks. This briefing explains what the AAIC 2026 findings mean for you and what to discuss with your doctor.
Medical information disclaimer: This article is for general educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a physician or other qualified health professional about symptoms, medications, tests, or treatment decisions.
Table of Contents
- What Did the Study Test?
- How Much Did Accuracy Improve?
- What Changed After Doctors Saw Results?
- What Can You Do Next?
What Did the Study Test?
According to Healio, researchers enrolled 1,310 people with mild cognitive impairment or dementia seen by 165 physicians Healio report. Of that group, 383 were seen in primary care and 927 were seen by dementia specialists.
Pharmaceutical Technology identifies the test as C2N Diagnostics' PrecivityAD2. It measures amyloid-beta and phosphorylated tau proteins linked to Alzheimer's pathology.
How Much Did Accuracy Improve?
According to the Alzheimer's Association AAIC release, primary-care accuracy rose from 65% before blood results to 93% after primary-care accuracy release. The same release reports specialist accuracy rose from 74% to 89%, leaving both groups at about 90% in direct comparison.
For you, the gap matters. Many people first report memory concerns to a family doctor, not a specialist. Accurate early direction reduces wrong turns and long waits.
What Changed After Doctors Saw Results?
The Alzheimer's Association release states physicians changed the diagnosis in about one-third of patients. They also changed planned care or further exams in more than half.
The same Association release notes the test was most helpful for ruling out Alzheimer's in primary care. A negative result helped doctors look for other causes of thinking and memory symptoms.
What Can You Do Next?
Labcorp notes FDA-cleared Alzheimer's blood tests are aids, not screening or standalone diagnoses, for adults 50 and older with cognitive symptoms Labcorp test information. Labcorp notes results are interpreted with other clinical information.
If you notice ongoing memory lapses, bring dated examples and a medication list to your primary-care visit. Ask whether your symptoms fit mild cognitive impairment and whether referral or further testing fits your case. Bring a family member who sees your daily function.
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