Definition Lipase is a protein ( enzyme ) released by the pancreas into the small intestine. It helps the body absorb fat by breaking the fat down into fatty acids. This article discusses the test used to measure the amount of the lipase in the blood. How the test is performed A blood sample is needed. For information on how this is done, see: Venipuncture . How to prepare for the test Do not eat for 8 hours before the test. Your health care provider may ask you to stop taking drugs that may affect the test, such as: Bethanechol Birth control pills Cholinergic medications Codeine Indomethacin Meperidine Methacholine Morphine Thiazide diuretics How the test will feel When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing. Why the test is performed This test is done to check the pancreas for disease, most often acute pancreatitis . Lipase appears in the blood when the pancreas is damaged.
Diagnosis Healthy adults age 45 and older should get tested for diabetes every 3 years. Patients who have certain risk factors should ask their doctors about testing at an earlier age and more frequently. These risk factors include: A weight that is 20% more than ideal body weight Sedentary lifestyle High blood pressure (greater than 140/90) or unhealthy cholesterol levels -- especially for patients with low HDL ("good") cholesterol and high triglyceride levels History of heart disease, stroke, or peripheral artery disease A close relative (parent, sibling) with diabetes A high-risk ethnic group background (African-American, Latino, Native American, Asian American, Pacific Islander) Having delivered a baby weighing over 9 pounds or having a history of gestational diabetes (in women) Polycystic ovary disease (in women) Children age 10 and older should be tested for type 2 diabetes (even if they have no symptoms) every 3 years if they are overweight and have at least two risk factors. Testing for ...
You show up at the laboratory for a fasting cholesterol (lipid) panel. Although the doctor's office advised you to not eat anything after midnight, you forgot. Out of habit, you went ahead and ate breakfast. You didn't even realize your mistake until you arrived at the lab and the technician asked if you'd been fasting.
Was your trip wasted? Should you just reschedule and come back fasting?
Well, if the results of two large studies offer any insight, no: You may have done the smartest thing you could have done, in fact.
First of all, why is it that we nearly always check fasting levels? No study has ever demonstrated that fasting triglycerides are, in any way, superior to non-fasting levels drawn after eating.
There are two principal reasons. One: Triglycerides increase with tremendous variation after a meal, depending on how much fat was in the meal, what kind of fat, how overweight you are, the presence of pre-diabetes or diabetes, how depleted you are in...
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