胃泌素血检

定义

The gastrin blood test measures the amount of the hormone gastrin in blood.

选择的名字

Peptic ulcer - gastrin blood test

How the Test is Performed

A 需要血液样本.

How to Prepare for the Test

Certain medicines may affect the results of this test. Your health care provider will tell you if you need to stop taking any medicines. Do NOT stop taking any medicine before talking to your provider.

Medicines that can increase gastrin level include:

• Stomach acid reducers, such as antacids
• H2 blockers (cimetidine and famotidine)
• Proton pump inhibitors (omeprazole and pantoprazole)

Some of these medicines are available without a prescription. Discuss non-prescription medicines you are taking with your provider.

Drugs that can decrease gastrin level include caffeine, 糖皮质激素, and the blood pressure drugs deserpidine, 利血平, 和瑞西那明.

How the Test will Feel

When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging sensation. Afterward, there may be some throbbing or a slight bruise. 这很快就会消失.

Why the Test is Performed

Gastrin is the main hormone that controls the release of acid in your stomach. When there is food in the stomach, gastrin is released into the blood. As the acid level rises in your stomach and intestines, your body normally makes less gastrin.

Your provider may order this test if you have signs or symptoms of a problem linked to an abnormal amount of gastrin. 这包括 消化性溃疡.

正常的结果

Normal values are generally less than 100 pg/mL (48.1 pmol / L).

Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your provider about the meaning of your specific test result.

What Abnormal Results Mean

Too much gastrin can causes severe 消化性溃疡. A higher than normal level may also be due to:

• Chronic kidney disease
• 长期 胃炎
• Over-activity of the gastrin-producing cells in the stomach (G-cell hyperplasia)
• 幽门螺杆菌 infection of the stomach
• Use of antacids or medicines to treat heartburn
• Zollinger-Ellison syndrome, a gastrin-producing tumor that may develop in the stomach or pancreas
• Decreased ability of the stomach to produce acid
• Previous stomach surgery

风险

There is little risk involved with having your blood taken.Veins and arteries vary in size from one patient to another and from one side of the body to the other. Taking blood from some people may be more difficult than from others.

Other risks associated with having blood drawn are slight but may include:

• 大出血
• Fainting or feeling lightheaded
• Multiple punctures to locate veins
• Hematoma (blood accumulating under the skin)
• Infection (a slight risk any time the skin is broken)

参考文献

Bohórquez DV, Liddle RA. Gut sensory transduction. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology/Diagnosis/Management. 11日艾德. Philadelphia, PA: Elsevier; 2021:chap 4.

Siddiqi HA, Rabinowitz S, Axiotis CA. Laboratory diagnosis of gastrointestinal and pancreatic disorders. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24日艾德. Philadelphia, PA: Elsevier; 2022:chap 23.