Can leukemia be detected through annual blood test?

Likely. Leukemia can usually be detected by examination of blood, however whether annual blood tests are likely to provide early diagnosis is not known. Some leukemias will require examination of bone marrow for diagnosis.
Leukemia. A suspicion for a significant blood disorder like leukemia can be raised from the routine complete blood counts. Subsequently, more specific tests - from blood and bone marrow biopsy in almost all cases on leukemia - would need to be obtained to confirm and to establish the diagnosis of leukemia.

Related Questions

Is there a blood test to detect leukemia?

Yes. There are many forms of leukemia. Some are "acute" and present quickly. These can be serious / fatal without treatment. Other types of leukemia are "chronic' and can be present for years without the patient knowing / being diagnosed. One of the first tests used to diagnose any leukemia is a complete blood count and review of a peripheral blood smear under the microscope. Hope this helps. Read more...

Took a blood test which showws no abnormalities, so does this rule out leukemia?

Yes most likely. Leukemia, although it begins in the bone marrow, will soon affect the peripheral blood causing low hemoglobin(anemia), low platelets and low or high WBC count. All these changes can develop quite quickly( in 4-6 weeks) in case sof acute leukemia although chronic leukemias take several months to evlove enough to affect the peripheral blood. Read more...
Probably. Probably yes. There are rare instances of leukemia, especially in a very early stage, when no significant abnormalities may be present in the peripheral blood, but that is a very unusual situation. Read more...

Blood test results -what would tell that I have leukemia?

See below... As general rule, your blood test results should be interpreted by your physician. But to answer your question, a common abnormal finding in the blood of a patient with leukemia is a significantly increased WBC (white blood cell) count with or without abnormal circulating cells. Anemia (low rbc and hemoglobin) and thrombocytopenia (low platelets) are also common. Not all leukemias show high wbc. Read more...

Can a CBC (blood test) show leukemia always?

Yes, most times. A leukemia typically begins in the bone marrow and will often show effects on the CBC as the cancer cells spill over into the circulating blood. On rare occasions leukemia may be still limited in the bone marrow, so we make a diagnosis by taking a bone marrow sample. Read more...

Could a CBC (blood test) show leukemia accurately always?

Sometimes. Sometimes but not always. Leukemia, a form of blood and bone marrow cancer, is frequently detectable in the blood; however, especially if early in the course of the disease, leukemic cells may be confined to the bone marrow and not cross into the blood in sufficient numbers to be detected by a cbc. Ultimately, the complete diagnosis and prognosis of leukemia relies on bone marrow examination. Read more...