Why Does A Doctor Order A CBC Blood Test?

What is a normal CBC?

In general, the reference ranges are: White blood cells: 4,500 to 11,000 cells per microliter (cells/mcL) Red blood cells: 4.5 million to 5.9 million cells/mcL for men; 4.1 million to 5.1 million cells/mcL for women.

Hemoglobin: 14 to 17.5 grams per deciliter (gm/dL) for men; 12.3 to 15.3 gm/dL for women..

What does abnormal blood test results mean?

Abnormal results might be a sign of a disorder or disease. Other factors—such as diet, menstrual cycle, physical activity level, alcohol intake, and medicines (both prescription and over the counter)—also can cause abnormal results. Your doctor should discuss any unusual or abnormal blood test results with you.

Can CBC detect viral infection?

A CBC test usually includes: White blood cell (WBC, leukocyte) count. White blood cells protect the body against infection. If an infection develops, white blood cells attack and destroy the bacteria, virus, or other organism causing it.

Can I get a CBC without a doctor?

Direct access lab testing allows individuals to order their own blood work directly from the lab without the need for a doctor’s recommendation or referral. For most lab companies (e.g. Walk-In Lab) one simply needs to go to the company’s website and select the lab that they would like to order.

What does a CBC blood test cost?

How much does a CBC test cost? The cost for a complete blood count test or CBC test varies greatly, and can run from $10.00 up to $2,700 depending on what type of insurance you have, and whether or not you have it.

What cancers are detected by blood tests?

Examples of tumor markers include prostate-specific antigen (PSA) for prostate cancer, cancer antigen 125 (CA 125) for ovarian cancer, calcitonin for medullary thyroid cancer, alpha-fetoprotein (AFP) for liver cancer and human chorionic gonadotropin (HCG) for germ cell tumors, such as testicular cancer and ovarian …

How long does it take to get results of CBC?

Complete blood count (CBC). This test measures the presence of 10 cell types in the white blood cells, red blood cells, and platelets. Examples of these results include hematocrit, hemoglobin, red blood cell count, and white blood cell count. CBC results are usually available to your doctor within 24 hours.

What are normal blood test results?

A routine complete blood count (CBC) test checks for levels of 10 different components of every major cell in your blood: white blood cells, red blood cells, and platelets….1. Complete blood count.ComponentNormal rangehematocritmen: 38.8–50.0 percent; women: 34.9–44.5 percent4 more rows•Jul 24, 2020

What blood tests show arthritis?

Blood tests commonly used to diagnose rheumatoid arthritis include:Rheumatoid factor. … Anti-Cyclic Citrullinated Peptide. … C-Reactive Protein (CRP). … Erythrocyte Sedimentation Rate (ESR). … Antinuclear Antibody (ANA).

What is a CBC and why is it ordered by your doctor?

A complete blood count (CBC) is a blood test that is commonly ordered by doctors. A CBC is often ordered as part of a complete physical or when your doctor thinks you might have a certain condition, such as an infection. A CBC may also be done to check on levels of prescribed medications in the body.

What does abnormal CBC mean?

Abnormal red blood cell, hemoglobin, or hematocrit levels may indicate anemia, iron deficiency, or heart disease. Low white cell count may indicate an autoimmune disorder, bone marrow disorder, or cancer. High white cell count may indicate an infection or reaction to medication.

What does a full blood test show?

Full blood count (FBC) This is a test to check the types and numbers of cells in your blood, including red blood cells, white blood cells and platelets. This can help give an indication of your general health, as well as provide important clues about certain health problems you may have.

What diseases can be diagnosed with a CBC?

The CBC can evaluate your overall health and detect a variety of diseases and conditions, such as infections, anemia and leukemia….Some examples include:Anemia of various etiologies.Autoimmune disorders.Bone marrow disorders.Dehydration.Infections.Inflammation.Hemoglobin abnormalities.Leukemia.More items…•

Why would a doctor order a complete blood count test?

Your doctor may suggest a complete blood count if you’re experiencing weakness, fatigue, fever, inflammation, bruising or bleeding. A complete blood count may help diagnose the cause of these signs and symptoms. If your doctor suspects you have an infection, the test can also help confirm that diagnosis.

Is there a blood test to check your immune system?

Your doctor will also perform a physical examination. Tests used to diagnose an immune disorder include: Blood tests. Blood tests can determine if you have normal levels of infection-fighting proteins (immunoglobulin) in your blood and measure the levels of blood cells and immune system cells.

How do I order a CBC?

Order Labs. Order online or over the phone: 1-877-511-LABS. No doctor or consultation visit is needed. … Find Lab Near You. Find a LabCorp or Quest Diagnostics location near you on our Lab Locator. After ordering your lab testing, you will receive an email with your lab requisition. … Lab Results Ready.

How often should you have a CBC done?

For routine blood work when no health issues are present, your doctor will likely request one once a year. This is often done at the same time as your annual physical. The purpose of this test is to ensure your levels are still healthy. If something comes back abnormal, your doctor will want to investigate further.

What should you not do before a blood test?

Why do I need to fast before my blood test? If your health care provider has told you to fast before a blood test, it means you should not eat or drink anything, except water, for several hours before your test. When you eat and drink normally, those foods and beverages are absorbed into your bloodstream.