ISOCITRATE DEHYDROGENASE (ICD)
Purpose of the test:
Provides important information to assess presence and extent of
liver damage
Detects early viral hepatitis and infectious mononucleosis
Distinguishes between liver disease and myocardial infarction when
SGOT is elevated
Patient preparation:
Don't eat any food or drink any liquid for at least 12 hours before
the test. Do not drink any alcohol for 24 hours before test.
Time before test results available:
Test requires only a few minutes in the laboratory. Time before
results are reported to the doctor or patient varies from a few
minutes to a few days.
Normal values:
1.2 to 7u/liter at 86F (30C), as measured by continuous
monitoring
Newborns may have blood levels 4 times higher than normal adult
values in the first 2 weeks after birth
What "high" or "increased" may indicate:
Acute viral hepatitis
Conditions that result in liver-cell damage, such as hepatitis,
cirrhosis, and malignancies
Taking these drugs may aff`ect test results:
Aminosalicylic acid
Isoniazid
Methotrexate
Phenylbutazone
Other factors that may affect test results:
Alcohol
Failure to fast overnight
If tourniquet is applied on the arm too long (over 1 minute), it
may cause an inaccurate test result. Requrest another sample to be
collected to ensure accuracy.
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