Also Known As
Blood Cell Count, Complete Blood Count with Differential, CBC, or Full Blood Count.
What is the Purpose of a CBC Test?
A CBC blood test is one of the most commonly ordered lab tests and serves as a vital indicator of overall health. This comprehensive test measures various components of your blood to evaluate your well-being. The CBC lab test can help detect early signs of health issues such as fatigue, infections, or anemia. It also helps monitor chronic conditions, assess treatment effectiveness, and support routine health screenings as part of a general health test.
What Does the CBC Blood Test Measure?
The CBC blood test measures the levels and characteristics of blood cells, providing valuable insights into your overall health. Specific components evaluated in CBC labs include:
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Red blood cell count
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White blood cell count
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Platelets
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Hemoglobin
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Hematocrit
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Mean corpuscular volume (MCV)
These metrics help identify a wide range of potential health issues related to oxygen transport, immune response, and blood clotting.
Who Should Take a CBC Lab Test?
Healthcare providers often recommend a CBC with differential as part of annual health exams or when evaluating specific symptoms. The CBC blood test is also used for screening, diagnostic, and monitoring purposes, especially for individuals with a history of blood disorders or chronic conditions that affect overall wellness.
CBC with Differential Test Preparation
No special preparation is needed before taking a CBC with differential and platelet count test. However, your healthcare provider may suggest avoiding certain medications or supplements that could temporarily affect your blood results.
Complete Blood Count Test Results
Normal adult CBC test results fall within these ranges:
- Red blood cells: 4.35 million – 5.65 million cells/mcL (men); 3.92 million – 5.13 million cells/mcL
- Hemoglobin: 13.2 grams – 16.6 grams/dL (men); 11.6 grams – 15 grams/dL
- Hematocrit: 38.3% – 48.6% (men); 35.5% – 44.9% (women)
- White blood cells: 3,400 – 9,600 cells/mcL
- Platelets: 135,000 – 317,000/mcL (men); 157,000 – 371,000/mcL
- MCV: 80 – 100fl
Our complete blood count test reports are easy to read so you can use them to make important healthcare decisions. Results that fall outside the normal ranges may indicate a potential health issue that warrants further testing for conditions such as cancer, infectious disease, heart disease, or anemia and other blood-related concerns.
It’s important to note that dehydration, medications can influence test results, and activity level, among other factors, so you’ll want to consult with a physician about any abnormal results.
How Much Does a CBC Blood Test Cost?
A CBC with Differential and Platelet Count at Personalabs costs $44 — physician lab order included. No insurance, no doctor’s appointment, no surprise fees.
| Where You Get Tested | Typical Cost | Notes |
|---|---|---|
| Personalabs | $44 | Physician order + lab draw + results |
| Doctor’s office visit + lab | $150–$300+ | Copay + separate lab bill |
| Hospital outpatient lab | $200–$500+ | Facility fees apply |
| Urgent care + lab | $100–$250+ | Visit fee + lab fee |
HSA and FSA eligible. Use your pre-tax healthcare dollars — your CBC qualifies as a reimbursable medical expense.
Where Can I Get a CBC Test Done Near Me?
CBC testing is easy and convenient with Personalabs. Here’s how it works:
Step 1: Visit our website’s general health and wellness tests section, purchase the test, and download the lab order. (You don’t need a doctor to sign off on the lab order, depending on the state you live in.)
Step 2: Choose the lab closest to you from our 4,000-plus partner facilities and schedule your blood draw.
Step 3: Go to the lab with the blood work order and take the test.
Step 4: Receive your detailed results, typically within 24–48 hours, at your secure Personalabs portal.
We’re here to help you find the information and tools to take charge of your health. Start shopping for your lab tests online, or contact our customer service team with any questions.
Frequently Asked Questions About the CBC Blood Test
Can I order a CBC blood test without a doctor?
Yes — in most states. Personalabs provides a physician-approved lab order as part of your purchase, so you don’t need your own doctor’s referral or prescription. After ordering online, a network physician approves your order within 2–4 hours. A small number of states restrict direct-to-consumer lab testing; contact us to confirm availability in your state.
How much does a CBC blood test cost?
A CBC with Differential and Platelet Count at Personalabs costs $44, with the physician lab order included. No insurance is required and there are no hidden fees. Your CBC is HSA and FSA eligible.
Is fasting required before a CBC blood test?
No fasting is required for a CBC blood test. You can eat and drink normally beforehand. If your order includes additional tests like a lipid panel or glucose, fasting may be required for those — your lab order will specify.
How long does it take to get CBC blood test results?
CBC results are typically available in your Personalabs account within 24–48 hours of your blood draw. You’ll receive a notification when results are ready, and you can view them anytime in your secure account.
What does a CBC blood test check for?
A CBC measures red blood cells, white blood cells, hemoglobin, hematocrit, platelets, and MCV. Together these values screen for anemia, infection, immune disorders, clotting problems, and certain blood cancers. It’s one of the broadest single-draw health screens available.
Can a CBC blood test detect vitamin deficiencies?
A CBC can’t directly measure vitamin levels, but it can reveal abnormalities — like low red blood cells or low hemoglobin — that suggest deficiencies in iron, vitamin B12, or folate. If your CBC shows these patterns, a Vitamin B12or Iron/Ferritin test is a logical next step.
How often should you get a CBC blood test?
Most adults benefit from an annual CBC as part of a routine health exam. People managing chronic conditions like anemia, autoimmune disorders, or blood cancers may need it more frequently based on their provider’s guidance.
Can stress affect CBC blood test results?
Yes. Physical or emotional stress can temporarily elevate white blood cell counts. Intense exercise right before a draw can also affect results. Mention any recent illness, stress, or strenuous activity to your provider when reviewing results.
