Ceruloplasmin blood test

定义

The ceruloplasmin test measures the level of the copper-containing protein ceruloplasmin in the blood.

Alternative Names

CP - serum; Copper - ceruloplasmin

How the Test is Performed

A 血液样本 是必要的.

How to Prepare for the Test

No special preparation 是必要的.

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. Afterward, there may be some throbbing or a slight bruise. This soon goes away.

Why the Test is Performed

Ceruloplasmin is made in the liver. Ceruloplasmin stores 和 transports copper in the blood to parts of the body that need it.

Your health care provider may order this test if you have signs or symptoms of a copper 新陈代谢 or copper storage disorder.

正常的结果

The normal range for adults is 14 to 40 mg/dL (0.93 to 2.65µ摩尔/升).

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

What Abnormal Results Mean

A lower-than-normal ceruloplasmin level may be due to:

• Long-term (慢性) liver disease
• Problem absorbing nutrients from food (intestinal malabsorption)
• 营养不良
• Disorder in which cells in the body can absorb copper, but are unable to release it (门克斯综合征)
• Group of disorders that damage the kidneys (nephrotic syndrome)
• Inherited disorder in which there is too much copper in the body's tissues (威尔逊的疾病)

A higher-than-normal ceruloplasmin level may be due to:

• 急性 和 慢性 感染
• Cancer (breast or 淋巴瘤)
• Heart disease, including heart attack
  
• Overactive thyroid 
  
• 怀孕
• Rheumatoid arthritis
• Use of birth control pills

风险

There is little risk in having your blood taken. Veins 和 arteries vary in size from one person to another, 和 from one side of the body to the other. Obtaining a 血液样本 from some people may be more difficult than from others.

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

• Excessive bleeding
• 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

柯柏走废话. Nutritional 和 alcohol-related neurologic disorders. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26日艾德. Philadelphia, PA: Elsevier; 2020:chap 388.

麦克弗森拉. Specific proteins. In: 麦克弗森拉, Pincus MR, eds. Henry's Clinical Diagnosis 和 Management by Laboratory Methods. 24日艾德. Philadelphia, PA: Elsevier; 2022:chap 20.

斯勒斯基毫升. 威尔逊的疾病. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26日艾德. Philadelphia, PA: Elsevier; 2020:chap 200.