Why Private MD Labs?
90-day money-back guarantee Lab order in minutes Save a trip to the doctor Low prices since 2005 Labs within 2 miles
WBC and differential blood test screening for infection, inflammation, and leukemia risk

White Blood Cell Count and Differential Blood Test

White Blood Cell Count (WBC) and Differential

  • Screen for hidden infections quickly
  • Detect inflammation and immune problems
  • Monitor overall immune system health
$49
First results as soon as overnight*
Example results

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

What's this test for?

This test is ideal if you're experiencing unexplained fatigue, frequent infections, fevers, or unusual bruising and bleeding. It helps screen for underlying issues like infections, inflammation, and blood disorders including leukemia. It's also useful if you just want a general check on your immune system health.

What's included in this test?

This test measures your white blood cells and breaks them down into different types, since each type plays a different role in fighting infection and managing inflammation. Looking at the balance between these types helps identify whether your body is dealing with an infection, allergic reaction, or something more serious that needs further attention.

What happens after I get my results?

Your results will show up in your account with each value's normal range clearly explained. If something falls outside the expected range, the report will point out simple next steps, like lifestyle adjustments, retesting in a few weeks, or seeking medical care right away if a value is significantly abnormal. You can download a standard lab report anytime, and if you test again in the future, you'll be able to track changes over time using the trends feature.

How can I naturally support a healthy immune system?
Getting consistent sleep, staying hydrated, and eating a diet rich in fruits, vegetables, and lean protein all help your body produce and regulate white blood cells effectively. Regular moderate exercise and managing stress through activities like walking or meditation can also support immune function. Avoiding smoking and excessive alcohol use gives your immune system a better chance to stay balanced.
When will I get my results?
Results are typically ready within about 7 days of your blood draw. Once ready, they'll be available directly in your online account, and you'll be able to view a clear breakdown of each measurement along with its normal range.
Who should consider this test?
Anyone dealing with ongoing fatigue, frequent colds or infections, unexplained fevers, or easy bruising should consider this test. It's also a smart choice for people with a family history of blood disorders or those who simply want a routine check on their overall immune health.
What symptoms indicate I may need this test?
Common signs include recurring infections, persistent tiredness, unexplained fevers, swollen lymph nodes, or unusual bruising and bleeding. Some people also notice weakness, weight loss, or night sweats. If you're dealing with any of these on a regular basis, this test can help identify what's going on.
What does a high white blood cell count mean?
A high count often means your body is actively fighting an infection, dealing with inflammation, or reacting to stress. In some cases, it can also point to more serious conditions like leukemia, so a significantly elevated result deserves prompt medical attention. Simple factors like a recent illness or intense exercise can also temporarily raise this number.
What does a low white blood cell count mean?
A low count can mean your immune system isn't producing enough cells to fight off infections effectively, which might be due to viral infections, certain medications, or nutritional deficiencies. It can also be linked to bone marrow issues in more serious cases. If your count is very low, it's important to seek medical care to figure out the cause.
How often should I retest?
If your results are normal and you're not experiencing symptoms, retesting once a year as part of a general wellness check is usually enough. If you had an abnormal result or you're managing an ongoing health concern, retesting every few weeks to months can help you track whether things are improving. Your results page will include specific guidance based on your numbers.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.
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 [email protected], 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 [email protected]. 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.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

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 [email protected].
Can I cancel my order?
Yes.

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 [email protected].

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 [email protected] and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Get lab order in minutes, results come overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
White Blood Cell Count (WBC) 11.8 x10^3/uL
Demo results
Low (<4.5) Optimal (4.5-11.0) High (>11.0)
11.8 x10^3/uL

What this means

Your white blood cell count is slightly above the typical range, which often means your body is fighting off an infection or dealing with inflammation. It can also happen temporarily after intense exercise or stress. A single elevated result usually isn't alarming, but it's worth keeping an eye on if it stays high.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More advanced tests may take longer due to complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Find a lab near you

Search Quest Diagnostics and LabCorp locations available through Private MD Labs.

Find a lab

White Blood Cell Count and Differential Blood Test

  • Screen for hidden infections quickly
  • Detect inflammation and immune problems
  • Monitor overall immune system health
$49
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.
Ask Me Anything

Your 24/7 Personal Lab Guide

Hi. Tell me what you want to check. I'll find the right blood test for you.

Just now
For informational purposes only. Not medical advice.