54.當發生macroamylasemia時，其血清及尿中的澱粉酶活性的變化為：
(A)血清澱粉酶及尿澱粉酶活性皆正常
(B)血清澱粉酶及尿澱粉酶活性皆增加
(C)血清澱粉酶活性增加但尿澱粉酶活性偏低
(D)血清澱粉酶活性正常但尿澱粉酶活性增加

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統計： A(11), B(153), C(466), D(92), E(0) #671657

詳解 (共 2 筆)

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巨澱粉酶血症 (macroamylase...
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Macroamylasemia is the presence of an abnormal substance called macroamylase in the blood.
 
Causes
Macroamylase is a substance that consists of an enzyme, called amylase, attached to a protein. Because it is large, macroamylase is filtered very slowly from the blood by the kidneys.
 
Most people with macroamylasemia do not have a serious disease that is causing it, but the condition has been associated with:
 
Celiac disease
Lymphoma
HIV infection
Monoclonal gammopathy
Rheumatoid arthritis
Ulcerative colitis
Symptoms
Macroamylasemia does not cause symptoms.
 
Exams and Tests
A blood test will show high levels of amylase. However, macroamylasemia can look similar to acute pancreatitis, which also causes high levels of amylase in the blood.
 
Measuring amylase levels in the urine can help tell macroamylasemia apart from acute pancreatitis. Urine levels of amylase are low in people with macroamylasemia, but high in patients with acute pancreatitis.

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