Alzheimer's Disease Blood Test

What is Alzheimer's Disease?

Alzheimer's disease is a progressive neurodegenerative disorder that causes memory loss, cognitive decline, and behavioral changes. It is caused by the accumulation of amyloid plaques and tau tangles in the brain, leading to neuronal death and brain tissue loss. The ApoE Genotype test is the most important genetic test for assessing Alzheimer's risk, as carrying the ε4 allele significantly increases disease likelihood and can lower the age of onset.

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What causes Alzheimer's disease?

Alzheimer's disease is caused by the abnormal accumulation of two proteins in the brain: amyloid-beta plaques and tau tangles. These protein deposits disrupt communication between brain cells and trigger inflammation, eventually leading to neuronal death and brain tissue shrinkage. While the exact trigger for these protein buildups remains under investigation, genetic factors like the ApoE ε4 allele, age, family history, and lifestyle factors all contribute to disease development.

What is the best test for Alzheimer's disease?

The ApoE Genotype test is the most important genetic test for assessing Alzheimer's disease risk because it identifies whether you carry the ε4 allele, which significantly increases your likelihood of developing the condition and can lower the age of onset. Additionally, the Homocysteine test is essential as elevated levels double the risk of Alzheimer's and indicate potential neuronal damage. Supporting tests include Interleukin-1 Beta to measure brain inflammation, Lp-PLA2 Activity to assess oxidative stress, and Vitamin B1 levels to help manage homocysteine. While no single blood test definitively diagnoses Alzheimer's, this combination provides valuable risk assessment and identifies modifiable factors.

When should I get tested for Alzheimer's disease?

You should get tested if you have a family history of Alzheimer's or dementia, are experiencing progressive memory problems that interfere with daily life, notice increasing confusion about time or place, or have difficulty completing familiar tasks. Testing is particularly important if you are over 65 with concerning cognitive symptoms, have cardiovascular risk factors like high blood pressure or diabetes, or want to establish a baseline for future comparison. Early risk assessment through genetic and biomarker testing allows you to implement preventive lifestyle changes and work with your doctor on proactive brain health strategies.

What are the symptoms of Alzheimer's disease?
Alzheimer's disease symptoms begin with mild memory loss and confusion, particularly forgetting recent conversations or events. As the disease progresses, you might experience difficulty finding the right words, trouble with problem-solving and planning, misplacing items in unusual places, and changes in mood or personality. Advanced symptoms include disorientation to time and place, difficulty recognizing family members, problems with speaking and swallowing, and needing assistance with basic daily activities like dressing and eating.
Who is at risk for Alzheimer's disease?
People over 65 face the highest risk, with likelihood doubling every five years after this age. Those with a family history of Alzheimer's, especially if a parent or sibling had the disease, have significantly increased risk. Carriers of the ApoE ε4 genetic variant are at elevated risk, particularly those with two copies of the allele. Additional risk factors include cardiovascular disease, diabetes, high blood pressure, high cholesterol, traumatic brain injury, poor sleep patterns, smoking, and lack of physical or mental activity.
What happens if Alzheimer's disease is left untreated?
Untreated Alzheimer's disease progressively worsens over time, leading to severe memory loss, complete dependence on caregivers, and loss of ability to communicate or recognize loved ones. The disease increases vulnerability to infections like pneumonia, causes difficulty swallowing that leads to malnutrition and aspiration, and creates safety risks from wandering and falls. Without intervention and support, quality of life deteriorates significantly, and life expectancy typically ranges from 4 to 8 years after diagnosis, though some people live up to 20 years with the condition.
Can Alzheimer's disease be diagnosed with a blood test?
Blood tests cannot definitively diagnose Alzheimer's disease, but they provide valuable risk assessment and identify contributing factors. The ApoE Genotype test reveals genetic predisposition, while homocysteine and inflammatory markers like Interleukin-1 Beta indicate processes linked to increased disease risk. Definitive Alzheimer's diagnosis requires comprehensive clinical evaluation including cognitive testing, neurological examination, and brain imaging such as MRI or PET scans. However, blood tests are useful for early risk screening and monitoring modifiable factors that influence brain health.
How is Alzheimer's disease treated?
Alzheimer's treatment focuses on managing symptoms and slowing disease progression through medications and supportive care. Cholinesterase inhibitors like donepezil and rivastigmine help maintain cognitive function in early to moderate stages, while memantine is used for moderate to severe disease. Newer medications like aducanumab target amyloid plaques in the brain. Treatment also includes managing cardiovascular risk factors, addressing nutritional deficiencies like low vitamin B1 and elevated homocysteine, cognitive stimulation therapy, and comprehensive support for daily living activities and behavioral symptoms.
How can I prevent Alzheimer's disease?
Preventing Alzheimer's involves maintaining cardiovascular health through regular exercise, a heart-healthy diet rich in omega-3 fatty acids and antioxidants, and controlling blood pressure, cholesterol, and blood sugar. Staying mentally active with puzzles, reading, and learning new skills builds cognitive reserve. Quality sleep, stress management, and maintaining strong social connections protect brain health. Avoiding smoking and excessive alcohol, managing homocysteine levels through adequate B vitamins, and staying physically active with at least 150 minutes of moderate exercise weekly all reduce Alzheimer's risk.
What natural remedies help with Alzheimer's disease?
Natural approaches that support brain health include omega-3 fatty acids from fish oil, which reduce inflammation and support neuronal function. B vitamins, particularly B1, B6, B12, and folate, help lower homocysteine levels associated with increased Alzheimer's risk. Antioxidants like vitamin E, curcumin from turmeric, and resveratrol from grapes combat oxidative stress. The Mediterranean diet rich in vegetables, fruits, whole grains, fish, and olive oil shows protective effects. Regular physical exercise, quality sleep, stress reduction through meditation or yoga, and consistent mental stimulation through social engagement and cognitive activities all support brain health naturally.
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How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

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Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.
Can I cancel my order?
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We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
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ApoE Genotype(11) (QSC)
Google reviews 505 reviews
$1,479 $1,154
What's included
Fast & easy, results by email & SMS
No need to visit a doctor
Private & confidential
No insurance needed
Results explained
No extra fees paid at the lab

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