Doctor insights on:
Can Lung Cancer Be Detected By Blood Tests
Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more
Unlikely.: Unlikely and not definitively. There are signs that might be picked up for particular tumors that, for instance, caused airway obstruction or pneumonia. But the physical exam should be followed up by a specialist with other modalities, such as an imaging study, bronchoscopy, or a biopsy. ...Read moreSee 1 more doctor answer
Yes,: breast ultrasound can detect breast cancer. Reported sensitivities vary, but in general the overall sensitivity for detecting breast cancer ranges from 60-80%, and is similar to mammography.There is some data to suggest ultrasound may perform better than mammography in younger women and in women with dense breasts. ...Read moreSee 1 more doctor answer
Maybe: At times a blood test can reveal leukemia, more often, it reveals a suggestion of leukemia (decreased blood counts) that will require additional tests. The best test to know about leukemia when there are these suggestions, is to have the bone marrow examined. This will definitely show leukemia, if it is present. ...Read moreSee 1 more doctor answer
Yes, but......: Ultrasound is not the most sensitive way to look for bladder cancer meaning it can miss early cases and there are other tests that are more sensitive and specific. However, bladder cancers are sometimes seen with ultrasound, especially if they are large. ...Read moreSee 1 more doctor answer
Backward: There is no screening test for ovca. However, if you have ovarian cancer, a ca-125 level may or may not be elevated. If it is, it may be one thing monitired for response. Getting ca-125, an expensive blood test of unproven value before knowing you have the cancer is inded backward, costly, non-specific and can led to unnecessary worry. ...Read moreSee 1 more doctor answer
No.: Bone cancers are typically diagnosed by biopsy after noticing an abnormality on x-ray or mri. There typically have no abnormalities of blood work. Leukemia is a bone marrow disorder. This is not a bone cancer, but can be confused, as the abnormal marrow is inside the bone. Leuekemias often have abnormal blood work. ...Read moreSee 1 more doctor answer
Mostly it can't: 400 characters aren't enough to teach you lab medicine, but leukemias are usually (not always) found as abnormal cells on peripheral blood smear, cancers of the GI tract often present as iron deficiency anemia, and suspicion for a handful of common cancers can be increased by finding a tumor marker (i.e., alpha-fetoprotein for hepatocellular carcinoma). Labs also point up complications. ...Read more
Variety: A variety of cancers can be detected by blood tests. In many cases, the blood test alone is not enough information to confirm the diagnoss; scans or biopsies may be necessary. These are the types of cancer where blood tests are helpful: liver, neuroendocrine, thyroid, colorectal, pancreatic, gastric, and ovarian to name a few. ...Read more
FOBT is screen: Fobt is designed to test for blood in stool. Blood in stool may be due to any bleeding in the GI tract from the gums to the anus; and there are false positives also. If fobt is positive, colonoscopy is generally recommended to look of colon cancer. Fobt per se is not a diagnostic test for cancer, just blood in stool. ...Read moreSee 3 more doctor answers
Deoxygenated blood enters the lungs from the right side of the heart and travels to the lungs. When you inspire, oxygen flows into the lungs, transverses the capilliares and attaches to hemoglobin down a gradient. At the same time, co2 diffuses into the capilaries and is expelled with exhalation. Oxygen rich blood then flows to the left side of the heart and into the ...Read more
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