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Patient Education

Complete Blood Count (CBC)

A simple, informative blood test that gives Dr. Golian a clear picture of your red cells, white cells, and platelets.

How the CBC Works

Your CBC begins with a simple blood draw, after which the sample is analyzed in a certified laboratory. The test counts and characterizes the three main types of blood cells and reports values such as hemoglobin, hematocrit, and platelet count.

A low red blood cell count or hemoglobin level may point toward anemia, while an elevated white blood cell count can suggest your body is responding to an infection or inflammation. Dr. Golian reviews each result in the context of your symptoms and history, and when a finding warrants specialist input, she can arrange coordinated care including Cedars-Sinai.

How to Prepare for Your CBC

A standard CBC does not require fasting, so in most cases you can eat and drink normally before your blood draw. If your CBC is being combined with other tests, such as a lipid panel or glucose testing, we will let you know in advance whether fasting is needed.

Staying well hydrated can make the blood draw easier and more comfortable. Please bring an up-to-date list of your medications and supplements, since some can influence your blood counts.

After Your CBC

Most patients can return to their normal activities immediately after the blood draw, with no downtime required. Results are typically available within a day or two, and Dr. Golian will personally review them with you and explain what they mean for your care.

If your CBC suggests anemia, she may recommend follow-up testing or a treatment such as iron supplementation. When results indicate an active infection, she may discuss appropriate next steps, including antibiotic therapy when warranted.

  • Detect and monitor anemia and its underlying causes
  • Identify signs of infection or inflammation
  • Assess platelet levels and clotting health
  • Track how your body responds to ongoing treatment
  • Support a thorough preventive health evaluation

Frequently Asked Questions

1Do I need to fast before a CBC?
No, a standard Complete Blood Count does not require fasting, so you can usually eat and drink normally beforehand. If your CBC is bundled with other tests like a lipid panel or glucose test, we will tell you in advance whether fasting is needed.
2What does a CBC actually test for?
A CBC measures your red blood cells, white blood cells, and platelets, along with values like hemoglobin and hematocrit. It helps screen for conditions such as anemia, infection, and inflammation, and gives a useful overview of your general health.
3How long does it take to get my CBC results?
Results are typically available within one to two days. Dr. Golian will personally review them with you and explain what they mean in the context of your health and any symptoms you may have.
4Does a CBC hurt?
The test involves a routine blood draw, which most patients tolerate easily with only a brief pinch. There is no downtime, and you can return to your normal activities right away.
5How often should I have a CBC done?
That depends on your age, health history, and any ongoing conditions. Dr. Golian will recommend a schedule tailored to you, often as part of a comprehensive physical or routine monitoring.

Understand Your Health with a Complete Blood Count (CBC)

Schedule a visit with Dr. Golian to discuss whether a CBC is right for you and what your results mean for your care.

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Medical Disclaimer

The information on this site is for general educational purposes only and is not medical advice, diagnosis, or treatment. Reading this site does not create a doctor–patient relationship. Always consult a qualified healthcare professional for personal guidance. If this is an emergency, call 911. Mentions of medications, devices, or procedures are informational and not endorsements. Full medical disclaimer.

Some listed indications involve investigational/off-label use. Learn more.