Doctor insights on:
Hcg Test For Cancer
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
False negatives: All lab tests have a certain percentages of false negatives and positives. ...Read more
A single PSA test is: Rarely an indication for a biopsy, but the pattern of psa and rate of rise calls for biopsy to confirm. Many slight rises lead to bx, with some risks of sepsis, and trivial small foci of low risk cancer that are best observed rather than treated. While the biopsy is the correct answer, the real answer is do you really need to know now, and that is individaully very differnt. ...Read moreSee 2 more doctor answers
Several tests done.: Pain and bloating can be signs of ovarian cancer, but they can be just from a painful period. Ovarian cancer would be more likely in older women, like 40+ years, and most likely in women 70+ years. Other tests, like pelvic exam, ca-125, and transvaginal ultrasound would be needed. The ultimate way to know is surgery to see if it is in fact, a tumor of something else. ...Read more
How accurate is blood work to check for pregnancy? Had 3 home pregnancies test positive, & test in clinic negative. Waiting for blood work results.
No: Some may offer a ca-125 blood test as a screening for ovarian cancer. Unfortunately, while ca-125 is found in 80-90% of ovarian cancer patients, it is not very specific (meaning it is elevated in a number of conditions) and is not found in early cancers. It is better used as a method of following cancer treatment and progression, once it is diagnosed. ...Read moreSee 2 more doctor answers
Urine tests were positive for pregnancy last week. This week blood tests showed 14 hcg and urine test is negative. Is miscarriage 100% certain?
The blood test for: H. Pylori checks for antibodies against the bacterium. Antibodies are proteins that help your body fight off infection and they may be detectable indefinitely, even for a lifetime. Biopsy & urease tests check for presence of an active infection. (+) H. Pylori blood test with negative biopsy & urease suggests you had the infection in the past but that it's not currently active. ...Read more
False positive for Lupus, now positive for HCV, waiting on blood test to confirm. Could HCV cause a false + for lupus?
Home pregnancy test was positive but blood hCG came back negative. Ob perform a blood test again. Hcg 750 progesterone 21. Why first hCG was negative?
Lab error: Presuming the first blood pregnancy test was close to the second, one of them had to be a lab error, probably the first one that was negative. If there is any question about the health of the pregnancy, your doctor can follow the bhcg level to see if it is rising appropriately and obtain an ultrasound when the level is high enough.For more info www.Askyourgynecologist.Org. ...Read more
Yes: Serum is the part of blood. It is the liquid part left when blood clots and is centrifuged . Many 'blood' tests, including beta HCG are done on serum. ...Read more
99% when cancer: Ca-125 is 99% accurate if an ovarian cyst or tumor happens to be cancer. The problem with this blood test is that it is very inaccurate when there is no cancer (called a false positive), sometimes up to 45%. This is why ob/gyns do not use this test as a screening test, or at patient request. ...Read moreSee 1 more doctor answer
18 yr old female, very low risk. Tested positive for HCV antibody, negative for quantitative RNA test. Further testing necessary? My physician said no
Not by itself: A pituitary tumor may be suggested by blood test results that show increased amount of certain hormones in the blood. However, some pituitary tumors do not produce hormones. An MRI of the brain is necessary to diagnose a pituitary tumor. Blood tests will help determine if the tumor is producing hormones. ...Read moreSee 1 more doctor answer