Question: Why Would My Doctor Order A CBC With Differential?

How do you know if you have a viral infection in your blood?

Antibody test.

The antibodies attach to a cell infected by the virus and cause the virus to be destroyed.

This test looks for antibodies to a specific viral infection.

It is generally done on a blood sample.

If the antibody is found, this test can show whether a person was infected recently or in the past..

What blood tests show infection?

Blood tests: When testing the blood, measurements are taken to confirm an infection: a CBC (complete blood count), which will show if there is an increased white blood cell count; an ESR (erythrocyte sedimentation rate); and/or CRP (C-reactive protein) in the bloodstream, which detects and measures inflammation in the …

What is a normal CBC with differential?

Leukocyte count: 12,500/mm3 (Normal 4500-11,000/mm3) Differential.

What is the difference between CBC and CBC with differential?

There are five major types of white blood cells. A CBC test measures the total number of white cells in your blood. A test called a CBC with differential also measures the number of each type of these white blood cells. Platelets, which help your blood to clot and stop bleeding.

Do drugs show up in a full blood count?

Drugs in blood are typically detectable within minutes to hours, depending on the drug and the dose, versus one to several days in urine. Blood drug screen tests are performed on whole blood specimens using immunoassay screening with reflex to definitive testing.

What lab values indicate infection?

An increased white blood cell (WBC) count (or in some cases a decreased WBC count) may indicate infection. Complement. Levels of C3 may be increased. A urine or sputum culture may be positive, indicating a possible source of infection that may have spread to the blood.

What does a CBC with differential test for?

A measure of the number of red blood cells, white blood cells, and platelets in the blood, including the different types of white blood cells (neutrophils, lymphocytes, monocytes, basophils, and eosinophils).

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…•

What indicates viral infection on CBC?

On the other hand, if you have low levels of neutrophils (30%) and high levels of lymphocytes (60%), this is a sign that you have a viral infection. You should ask your doctor about your white blood cell differential, as it may tell you whether you have a bacterial infection or a viral infection.