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Topic: Blood test

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  Blood test - Wikipedia, the free encyclopedia
Blood tests are laboratory tests done on blood to gain an appreciation of disease states and the function of organs.
Blood is obtained from a patient by venipuncture, except for tests such as Arterial blood gas.
Blood is useful as it is a relatively non-invasive way to obtain cells, and extracellular fluid (plasma), from the body to check on its health.
en.wikipedia.org /wiki/Blood_test   (428 words)

 Blood Test Results Normal Range Reference Chart - BloodBook, Blood Information for Life
Blood test results, made possible by the taking of Blood tests, are one of the most important tools that your doctor uses in evaluating your health status.
Blood tests, including various Blood chemistry and hematology 'Blood tests' offered by most test labs, represent an economical way by which quality information about a patient's physical condition, at the time of the Blood testing, can be made available to the physician.
Tests are rated in terms of their sensitivity (the probability that their Blood testing results will be positive when a disease is present) and their specificity (the probability that their test results will be negative when a disease is not present).
www.bloodbook.com /ranges.html   (1947 words)

 TheBostonChannel.com - Health Encyclopedia - Diabetes
Gestational diabetes is high blood glucose that develops at any time during pregnancy in a person who does not have diabetes.
Random (non-fasting) blood glucose level -- diabetes is suspected if higher than 200 mg/dL and accompanied by the classic symptoms of increased thirst, urination, and fatigue.
Testing provides valuable information for the health care provider and identifies high and low blood sugar levels before serious problems develop.
www.thebostonchannel.com /encyclopedia/6861690/detail.html   (2387 words)

 NBC5.com - Health Encyclopedia - Cord Blood
Cord blood is a sample of blood collected from the umbilical cord at the time of birth.
If cord blood is to be drawn, another clamp is placed 8 to 10 inches away from the first, then the isolated section is cut and a blood sample is collected into a specimen tube.
A blood culture that is positive for bacteria indicates septicemia.
www.nbc5.com /encyclopedia/6864421/detail.html   (583 words)

 UM researchers develop first blood test to detect spread of lung cancer   (Site not responding. Last check: 2007-11-07)
University of Maryland School of Medicine researchers are the first to successfully use a simple blood test to indicate the presence of an enzyme that signals the growth or recurrence of lung cancer.
The blood test detects the enzyme telomerase (tehl-AH'-meh-race), a substance associated with the uncontrolled growth of tumors.
The team tested 20 lung cancer patients and found that all six patients who had a marked increase in blood telomerase activity also had active, advancing disease, while 13 of the 14 who had no detected blood telomerase activity were in remission.
www.umm.edu /news/releases/bdtest.html   (709 words)

 Pediatric Oncall- ROUTINE BLOOD TEST
Blood is collected either by a finger prick or a small sample of blood is collected from an accessible vein usually in the arm with a needle and a syringe.
The part of the body from which blood is to be collected is cleaned with a sprit swab and then pricked with a needle.
The collected blood sample is mixed with a chemical to prevent it from clotting and analyzed either under a microscope or under a computerized analyzer.
www.pediatriconcall.com /forpatients/Procedures/routine_blood_testpat.asp   (299 words)

 Blood Test Diet: Lose Weight Loss Fast Diet   (Site not responding. Last check: 2007-11-07)
Most important for the blood test diets is that it needs to be taken about 12 hours to 14 hours before the test.
The blood test diet should eliminate food that are complex in digestion like pastas, cakes and pastries or products with added sugar or artificial sweeteners like fruit juices and drinks.
A blood test diet must be treated as a simple diet for a simple day and the bloods test diet becomes normal…and so does the blood test yield faultless results.
www.diet-reviews-zone.com /Blood-Test-Diet.htm   (409 words)

 Fecal Occult Blood Test (FOBT)
Blood in the stool may be caused by hemorrhoids, anal fissure, colon polyps, colorectal cancer, and many other conditions that cause bleeding in the gastrointestinal tract.
Blood in your stool may be caused by red meat you have eaten, menstrual bleeding, hemorrhoids, Crohn's disease, ulcerative colitis, a stomach ulcer, or the use of aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs).
Blood in the urine, menstrual bleeding, hemorrhoids, an anal fissure, bleeding gums, nosebleeds, or eating certain vegetables (radishes, turnips or beets) or red meat cooked rare within 2 days before the test, which can cause a false-positive test result.
my.webmd.com /hw/colorectal_cancer/hw227116.asp   (2378 words)

 Blood test results led to false cancer diagnosis
NEW YORK, Feb 25 (Reuters Health) -- False-positive results on a blood test caused at least 12 women in the US to be incorrectly diagnosed with a rare form of cancer, according to researchers at Yale and the University of New Mexico in Albuquerque.
However, the manufacturer of the test notes that it is approved for detecting pregnancy, not for diagnosing cancer.
Following a positive result on the blood test, the team note that 12 women aged 22 to 42 underwent a variety of unnecessary treatments, including chemotherapy, hysterectomies and removal of the ovaries.
www.personalmd.com /news/n0225053722.shtml   (707 words)

 Pet Travel Scheme, Blood Test
The blood test must be done at a laboratory recognised by defra.
Blood testing capacity at laboratories may be limited and there may be a wait for a blood test.
No further tests are required after the first test which gives a successful result, provided the pet is subsequently revaccinated by the 'Valid until' date on the PETS certificate.
www.petsonthego.com /petsbloodtest.html   (636 words)

 blood test - Hutchinson encyclopedia article about blood test   (Site not responding. Last check: 2007-11-07)
There are numerous blood tests, from simple typing to establish the blood group to sophisticated biochemical assays of substances, such as hormones, present in the blood only in minute quantities.
The majority of tests fall into one of three categories: haematology (testing the state of the blood itself), microbiology (identifying infection), and blood chemistry (reflecting chemical events elsewhere in the body).
Before operations, a common test is haemoglobin estimation to determine how well a patient might tolerate blood loss during surgery.
encyclopedia.farlex.com /blood+test   (151 words)

 Dictionary of Cancer Terms - National Cancer Institute
A test result that indicates that a person does not have a specific disease or condition when the person actually does have the disease or condition.
A test result that indicates that a person has a specific disease or condition when the person actually does not have the disease or condition.
Blood in the stool may be a sign of colorectal cancer.
www.cancer.gov /dictionary/db_alpha.aspx?expand=f#fecal   (2388 words)

 What Does My Blood Test Mean - BloodBook, Blood Information for Life
These tests are ordered, and the results are used by your physician to pinpoint or to support diagnosis, monitor or determine treatment, or to screen for undiagnosed conditions.
Laboratory test results are reported to your physician along with 'reference ranges' of the results of your Blood tests that assist in accurately assessing and interpreting the results of the testing.
These dried Blood spots are then mailed to a designated laboratory with a confidential and anonymous personal identification number (PIN), and there each is analyzed by qualified technicians in a certified medical laboratory using the same procedures that are used for samples that are taken in a doctor's office.
www.bloodbook.com /test-result.html   (1392 words)

 Bovine Pregnancy Blood Test Savings
Samples of blood are collected on the dairy, ranch or farm and are mailed to BioTracking for analysis.
The test was 99% correct in detection of pregnancy and 95 % correct in detection of non-pregnancy.
Blood sampling for pregnancy testing can be assigned to other staff of the dairy at a lessor cost.
www.biotracking.com /bloodtestsavings.php   (1696 words)

 Colon Cancer - fecal blood test for blood in stool
Frederick R. Jelovsek MD When the doctor does a rectal exam and smears a stool sample on a card to test for blood in the stool, or gives you a paper to drop into the toilet to look for a color change, this is known as testing for occult gastrointestinal bleeding.
Testing for fecal occult blood is commonly used as a cancer screen for colon cancer.
The basic tests available to screen for colorectal cancer are flexible sigmoidoscopy, checking the stool for hidden blood (fecal occult blood), dye and air in the colon (air contrast barium enema), and looking beyond the lower part of the colon (sigmoid) into the transverse and ascending colon using a scope called colonoscopy.
www.wdxcyber.com /ncancer2.htm   (4545 words)

 Fecal Occult Cassette Blood Test
Fecal occult blood test explanation: The presence of blood in stools may be other than colorectal bleeding, such as hemorrhoids, blood in urine, infestinal, rectum or stomach irritations.
As with all diagnostic tests, a definitive clinical diagnosis should not be based on the results of a single test, but should only be made by the physician after all clinical and laboratory findings have been evaluated.
In addition, unlike guaiac assays, the accuracy of the OB test is not affected by interfering substances and does not depend on the status of the patient at the time the specimen is taken.
www.mistertest.com /home-tests/fecal-occult-blood-test-193.html   (337 words)

 Positive Home Pregnancy Test, Negative Blood Test - Why?
If your home pregnancy test was positive while a blood test was negative, first and foremost, you must take a second test to confirm whether or not you are pregnant.
This blood test may register as negative even though a woman is pregnant if the woman takes diuretic medications, or "fluid pills." These drugs interfere with the test results.
Further testing can determine which of these the actual reason is. This test is also affected by the use of diuretics, or "water pills," by the mother, which can interfere with the result.
www.babyhopes.com /articles/positive-negative.html   (742 words)

 Experimental Blood Test:Uterine & Ovarian
An experimental blood test may one day help doctors detect ovarian and uterine cancers at earlier, more treatable stages than is currently possible, preliminary research suggests.
The test detects membrane fragments from tumors that have been shed into the blood, explained study author Dr. Karen Lyons, an obstetrician/gynecologist at the University of Louisville in Kentucky.
He said the new test might also be used with other proteins, such as CA125, to determine whether elevated CA125 levels indicate ovarian cancer or another condition such as endometriosis.
www.annieappleseedproject.org /exbloodtesov.html   (381 words)

 Blood Testing in DUI / DWI
Other states (e.g., Georgia) permit the officer in the field to choose which kind of test or tests are to be administered, whether the person is conscious or not.
Blood samples are often difficult to “track” (i.e., prove the ‘chain of custody’), and a missing link in the chain may result in acquittal, due to no admissible blood test evidence in the case.
These immunoassay tests are looking for common drugs of abuse, such as opiates, cannabinoids (marijuana), sedatives, pain killers, etc. If these immunoassay tests come back NEGATIVE, the lab will usually report that the sample did not have any type of drugs in it.
www.drunkdrivingdefense.com /general/blood-tests.htm   (956 words)

 Love Thyself Series - CA-125 Blood Test Hoax   (Site not responding. Last check: 2007-11-07)
This particular email implies that the CA-125 test is a widely kept secret from the female public and that physicians or insurance carriers typically discourage female patients from taking this potentially, life-saving test.
It is NOT however, a "screening test" for ovarian, or any other type of cancer; nor is it the female equivalent to the PSA test that is performed on men to screen for prostate cancer.
Unfortunately the best screening test for ovarian cancer that we currently have at our disposal, consists of a yearly pelvic exam followed by more extensive testing if any abnormalities are suspected.
www.blackwomenshealth.com /ca-125_hoax.htm   (925 words)

 MedlinePlus Medical Encyclopedia: Blood test
Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand.
A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe.
Preparation may vary depending on the specific test.
www.nlm.nih.gov /medlineplus/ency/imagepages/10026.htm   (165 words)

 Blood Test Predicts Stroke Risk - CBS News
The test, called PLAC, is the first blood test approved by the FDA to predict a person’s risk of ischemic stroke.
The PLAC test measures an enzyme known as Lp-PLA2 in the blood.
The FDA approved the test for predicting stroke risk after a large study showed that people with higher than normal levels of this enzyme are twice as likely to suffer an ischemic stroke associated with hardening of the arteries.
www.cbsnews.com /stories/2005/06/20/health/webmd/main703089.shtml   (419 words)

 Marijuana blood test
This marijuana blood test product has been on the market since 1993 and has helped many thousands of people pass their tests.
If you fail a cocaine or marijuana blood test, deny that you have used any illegal substance and insist that there must be something wrong with their test.
Filling out the lab test form to include over the counter medications that cause the same positive results as the illegal drug that might be consumed would be a good idea If a positive result occurs on the test, a basis will have been laid for an appeal.
www.passing-drug-test.com /marijuana-blood-test.html   (908 words)

 Blood Test Kits
Because the Home Access test consists of multiple components, including materials for specimen collection, a mailing envelope to send the specimen to a laboratory for analysis, and includes pre- and post-test counseling, it is considered a testing system.
The dried blood spots are mailed to a laboratory with a confidential and anonymous personal identification number (PIN), and analyzed by trained clinicians in a certified medical laboratory using the same procedures that are used for samples taken in a doctor's office.
Even if they have been tested by independent laboratories, they have not been analyzed and validated by the FDA to assure that the test results were correct and reliable.
www.bloodtestkit.com   (1028 words)

 Reference.com/Encyclopedia/Blood test
Blood is obtained from a patient by venipuncture.
Blood urea nitrogen ("BUN") and renal function (creatinine is generally used)
Serology are blood tests that are often used to diagnose sexually transmitted diseases.
www.reference.com /browse/wiki/Blood_test   (305 words)

 ovarian cancer blood test
February 8, 2002 (The Associated Press) - A simple blood test may be able to identify ovarian cancer at its earliest stage, when...
The CA-125 blood test is a reliable way to detect ovarian cancer in its early...
Blood test may spot ovarian cancer earlier By Rita Rubin, USA TODAY Scientists on Friday will report the first tantalizing evidence that a quick, fingerstick blood test might be useful in...
www.youramazinglife.com /cancercures/17/ovarian-cancer-blood-test.html   (320 words)

 Landmark blood test fuels hope for mesothelioma cure   (Site not responding. Last check: 2007-11-07)
The world's first blood test for the lung cancer mesothelioma is being launched with the hope it will lead to a cure.
Professor Robinson says the blood test will mean immediate diagnosis and says more money needs to be channelled into research.
Professor Robinson expects the blood test to be available to the public within the next few weeks.
www.mesotheliomaweb.org /bloodtest2.htm   (602 words)

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