Frequently asked questions

Find answers to common questions.

8 questions

Scheduling lab visits

How do I schedule my lab visit?

Where do I go for my lab visit?

How long is a lab visit?

How often do I test with Function?

Why do some members need 2 lab visits for the Annual Test?

How do I schedule Add-On Tests or re-tests?

Do I have to use my Mid-Year Test within the year?

How do I reschedule my test?

11 questions

Understanding your results

How long does it take to get my results?

Will my results include explanations?

Where do test insights come from?

What happens with urgent test results?

What if I also have lab results from my doctor?

Why do I need to test every 6 months?

What is a biomarker?

Do biomarkers change over time?

Can lab tests have errors?

Does Function integrate with Oura, Fitbit, Apple Health, or other health services?

9 questions

Preparing for testing

Do I need to fast?

Should I schedule my test for the morning?

Do I need to stop taking my medications before testing?

Should I stop taking biotin before testing?

Do I need to avoid any foods?

How much blood is taken?

What if I faint during blood draws?

Can I get tested while pregnant?

Can I get tested after pregnancy?

9 questions

Managing your membership

How much does Function cost?

Are there different tiers of membership?

Does Function take insurance?

Is Function FSA/HSA eligible?

Can I pause or cancel?

What’s Function’s refund policy?

Why does testing in NY and NJ cost more?

Where do I go if I have questions about my membership or test results?

I’m not a member yet—how do I contact Function?

18 questions

Exploring the tests

Which tests are included with a Function membership?

How were Function’s tests selected?

Why 160+ lab tests?

How accurate are the tests?

Why are traditional lab tests so expensive?

What are Add-On Tests?

Does Function help you test metabolic health?

Is heart health testing included?

Are thyroid tests included?

What about heavy metals?

Does Function help you test for cancer?

Does Function help you test for Alzheimer’s risk?

Can you test for allergies with Function?

Does Function offer sexual health testing?

Will Function tell me if I am fertile?

What if I’m on hormonal birth control?

Why are some Add-On tests bundled together?

Do vaccines (like for COVID-19) affect results?

6 questions

Protecting your data

How does Function keep my information safe?

Is my health data private?

Who will have access to my results?

Why am I being asked to provide an authorization?

What types of messages can I expect?

Can I delete my data?

11 questions

Gifting and referrals

Who should I gift a Function membership to?

Can I gift Function to my parents?

Can I gift Function to my kids?

Who can send a referral?

How do I refer friends and family to Function?

Does Function offer a reward for referrals?

Is there a referral limit?

How do I get paid?

Who can I refer to Function?

Can healthcare providers refer patients to Function?

Do gifted memberships count for referrals?

14 questions

Scans

Who can benefit from an MRI or CT scan?

What makes Function's MRI scans different?

Are MRI and CT scans included with my membership?

How do Function members add MRI or CT scans?

Where can I get an MRI or CT scan?

How do MRI scans work?

How do low-dose CT scans work?

How do I know which scan is right for me?

Why don’t the MRI scans include the heart or breasts?

I already took the GRAIL Cancer Test. Would an MRI scan still be useful?

How should I prepare for my scan?

Why do I need a different site to book scans?

When will I get results?

Are MRI and CT scans FSA/HSA eligible?

7 questions

Partnering with Function

Can providers see who signed up using their referral link?

As a provider, can I see my patients’ data?

How can creators partner with Function?

Is the smoothie available at all Erewhon locations?

What benefit do providers get for referring patients to Function?

How can healthcare providers get Function access for their practice?

How can employers bring Function to their team?

10 questions

For Businesses

Who is Function for?

What’s included with Function for Work?

Which tests are included with a Function membership?

Why so many tests? Isn’t an annual screening enough?

Is insurance involved?

What if an employee has an out-of-range lab result?

How does Function work for employees across different locations?

Can Function be customized for our workforce?

Can an employer pay for employees’ Function memberships?

What kind of reporting can we expect?

9 questions

Getting started

How do I join Function?

Where is Function based?

Where is Function available?

Why was Function created?

Why are we called "Function"?

I feel good. Why test?

Why don't I already get these lab tests from my doctor?

Does Function replace my doctor or concierge care membership?

5 questions

Function for work

Can I pay as my codes are used?

Can I pay for part of someone's membership?

Do you have any geographic restrictions?

What ongoing support do you provide?

Can you help me market this to my team?