Doctor insights on:
Do I Need To Fast Before A Thyroid Blood Test
Depends: Depending on what kind of blood tests are being done, you may need to fast. If you are having a metabolic panel, liver panel or cholesterol panel you will need to fast. Probably would be best if you check with your ordering physician to make sure that you understand what you need to do. This will make you avoid potentially abnormal results or the need for a repeat test later. ...Read more
Eight to Twelve: Eight to twelve hours should suffice.Get a more detailed answer ›
No! Fasting of?Value: Fasting for most issues not only of low value but often misleading. Ex.: people commonly told to fast before blood glucose test; yet Diabetes Mellitus=elevated blood glucose & glucose most commonly elevated after eating. Thus fasting glucose routinely misses Diabetes Mellitus. Fasting is promoted for only a few issues because how databases were done or because the values are calculated/estimated. ...Read moreSee 1 more doctor answer
No: The hemoglobin A1c is a measure of the amount of hemoglobin that is bound to glucose (blood sugar) in red blood cells. Red blood cells live about 120 days, so the A1c gives an idea of diabetic control over 3 months. Eating on the day of the test will make no difference. Be sure, though, that no other tests, such as fasting lipid panel or fasting chemistries, have been ordered along w a1c. ...Read moreSee 1 more doctor answer
Not really: The aic test generally tells us what has been going on with your sugar over the past 3 months approximately. One does not really have to fast for it, but it is best done fasting in my opinion, because your doctor will probably want to see a fasting blood sugar at the same time to help manage your diabetes. Often a lipid panel is done at the same time, which requires one to be fasting. ...Read moreSee 1 more doctor answer
What to do if I have a high glucose level after fasting, what do I need to cut out or start doing?
See doctor: You need full evaluation and treatment appropriate for you. ...Read more
No: Sweat chloride testing at an accredited testing center is the standard way to diagnose cystic fibrosis. You do not have to get any other tests first to make the results of the sweat chloride test valid or meaningful. However, if your symptoms suggest cystic fibrosis, you might have had several tests first, including a chest x-ray and possibly blood work for pneumonia and/or diarrhea. ...Read more
Yes: A doctor will usually want a few simple blood tests to make sure you do not have some potential for bleeding prior to a thoracentesis. It depends a lot on what medications you are currently taking, especailly blood thinning medications and your general level of health at the time of the thoracentesis. A protime test and a blood count are typical tests to do prior. ...Read more
Yes: A thoracotomy is a specialized procedure to get into your chest. Coagulation tests should be acceptable to minimize the risk of bleeding. Usually your lung function should be available if high risk morbidities (risks) & a baseline oxygenation (oxymetry). Unless a risk for cardiac problem that is enough. ...Read more
I want to undergo a master body health check up can u suggest what type of tests I should do? I have high blood pressure, hypothyroidism.
Test with doctor: Unfortunately, there's not quite enough information to suggest which laboratory tests you should order. A 53 year old women (and men) should have a regular doctor, as there are several screening tests that have been shown to be effective. Therefore, i would recommend you ask your physician, then follow-up for an appropriate interpretation of the results. ...Read more
Iodine: Some institutions may ask you to fast after midnight the night before thyroid scan. You should avoid eating foods which contain high iodine content before the scan. Again, different places may ask you to perform these dietary for different amounts of time. Check with the site performing your scan. ...Read more
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