In general, blood tests cannot tell for certain whether or not a person has cancer, according to Mayo Clinic. Blood tests can provide clues to the doctor as to what is happening inside a patient's body, including the pos... More » Health Diagnostics & Imaging

As of 2015, there is no standard blood test for diagnosing lung cancer. However, the blood test developed by Panacea Global called LC Detect is said to effectively screen for malignancy in the lungs in its early stages, ... More » Health Conditions & Diseases Cancer

Cancer markers, usually referred to as tumor markers, are substances produced by cancerous cells or benign tumors, as defined by the National Cancer Institute. In some cases, healthy tissues also produce tumor markers in... More »

Routine blood tests cannot definitively detect cancer, with the exception of blood cancers, according to Mayo Clinic. However, routine blood tests provide a look into what's occurring in a person's body and whether or no... More »

A positive ANA blood test indicates that a person's immune system has launched a direct attack on its own tissue, according to the Mayo Clinic. This is also known as an autoimmune reaction. A person does not have to be a... More »

When choosing a clinic or laboratory to perform blood tests, consider the convenience of the laboratory's location and the ease of scheduling appointments and accessing test results, states Quest Diagnostics. Patients ma... More » Health Diagnostics & Imaging

A prostate-specific antigen (PSA) test can detect prostate cancer early, according to the American Cancer Society. When a PSA level is above 4 ng/ml, it prompts doctors to perform additional tests which can diagnose canc... More »