Understanding the life insurance blood test

A blood test is a standard part of the life insurance medical exam that helps your insurer get a complete picture of your health and set your premiums.

Amanda Shih author photo


Amanda Shih

Amanda Shih

Editor & Licensed Life Insurance Expert

Amanda Shih is a licensed life, disability, and health insurance expert and a former editor at Policygenius, where she covered life insurance and disability insurance. Her expertise has appeared in Slate, Lifehacker, Little Spoon, and J.D. Power.

Updated|3 min read

Policygenius content follows strict guidelines for editorial accuracy and integrity. Learn about our editorial standards and how we make money.

When you apply for life insurance, you typically undergo a medical exam. The life insurance medical exam is similar to an annual physical: A technician notes information like your height, weight, and blood pressure, and also takes blood and urine samples. 

The blood test, like the rest of the medical exam, is used to identify any health concerns you may have so that the underwriter can accurately set your life insurance rates. Underwriters generally use blood tests to look for high cholesterol, drug or tobacco use, and high-risk medical conditions like diabetes.

What is the life insurance blood test?

The medical exam and blood test are part of the underwriting process, which is how your life insurance company evaluates the risk of insuring you — i.e., how likely you are to die while your policy is active. 

Using the blood test results, an underwriter can confirm the medical information you shared in your initial phone interview and get the most up-to-date details about any of your health conditions. After underwriting, you’re assigned a life insurance classification based on your assessed risk level, which determines your final premium

What does the life insurance blood test look for?

There’s no “passing” or “failing” a blood test for your life insurance policy. The testing simply helps an underwriter get a more complete picture of your health. The insurance provider will be looking for signs of:

Results that show any of the above may lead to higher premiums or, in severe cases, a declined application. If you purposely conceal information that’s revealed after the medical exam, your application could be denied or your coverage could be canceled. The life insurance company may also note on your Medical Information Bureau (MIB) report that you were dishonest, causing other companies to deny you coverage in the future.

How to prepare for the life insurance blood test

Since the medical exam will influence your life insurance rates for the entirety of your policy, it makes sense you want to get the best results possible. While you can’t change your medical history, there are a few things you can do to prepare. 

  • Fast beforehand. You may be asked to fast up to 12 hours before testing so that your blood sugar and cholesterol levels are as accurate as possible.

  • Eat healthy foods. In the days leading up to your test, avoid high-sodium and sugary foods, which can raise your blood pressure or cholesterol.

  • Drink lots of water. Staying hydrated will help flush excess sodium from your system and make your veins easier to find for a blood draw. 

  • Wear short sleeves. Short sleeves make it easier to conduct a blood test and help keep your exam brief.

Making major lifestyle changes right before your exam, like quitting smoking, won’t earn you more favorable premiums. Underwriters need you to maintain those changes for a year or more before offering better rates. But taking steps to get precise results will help you get the most affordable premiums for your health profile.

→ Learn more about how to prepare for the life insurance medical exam

Ready to shop for life insurance?

Start calculator

Can you skip the life insurance blood test?

If you prefer to avoid the blood test or are social distancing during the coronavirus outbreak, you may be able to skip the test with no-medical exam life insurance. This type of life insurance doesn’t require a medical exam, and falls into two main categories:

A Policygenius agent can help you decide whether no-exam life insurance is right for you or if you’d benefit from going through the full underwriting process.

There’s no need to worry about the life insurance blood test as long as you're forthcoming about your health background and history. You can’t drastically change your results by making health or lifestyle changes immediately before the exam, but knowing what to expect and being transparent will get you the most accurate quotes for your coverage. If you prefer to avoid the medical exam altogether, an accelerated underwriting or final expense policy may be the best fit. 

Frequently asked questions

What do life insurance blood tests detect?

Life insurance companies use bloodwork to test for nicotine and drug use, high cholesterol, blood sugar, and other signs of pre-existing medical conditions.

Can I improve my life insurance blood test results?

You can't resolve existing health issues right away, but follow your provider’s guidelines for fasting, avoid unhealthy foods, and stay hydrated before the exam to get the most accurate results.

Why do I need to take a blood test to get life insurance?

The blood test helps your insurance provider get a comprehensive picture of your health, which they use to set your rates.

Can I skip the life insurance blood test?

If you qualify for no-medical-exam life insurance, you can skip the blood test as well as the rest of the medical exam.