Test Directory
| Test Code | |||
| CHYM | |||
| Test Name | |||
| Chymotrypsin, Fecal | |||
| CPT Codes | |||
| 84311 | |||
| Expected Turnaround Time | |||
| 3 days | |||
| Clinical Utility | |||
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The diagnosis of chronic pancreatitis depends upon the demonstration of functional impairment of the pancreas. Impairment is determined by several means, two of which are: 1. Direct measurement of exocrine secretion into the duodenum after stimulation by a standard meal or after stimulation by intravenous secretin/pancreozymin. 2. The direct measurement of the activities of certain enzymes in feces. Chymotrypsin activity in stool, for example, has been shown to be lower than normal in patients with pancreatic exocrine insufficiency. |
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| Specimen and Container Info | |||
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Specimen Type: Stool
Collection Container: Sterile Container Desired Specimen Volume: 1 g |
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| Collection Instructions | |||
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| Processing and Submission Instructions | |||
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| Patient Preparation | |||
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Patients receiving pancreatic enzymes should discontinue taking the enzymes at least 5 days before the collection of the stool sample. |
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| Transport Instructions | |||
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Transport to the laboratory refrigerated. |
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| Stability Requirements | |||
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| Methodology | |||
| Quantitative Enzymatic/Spectrophotometry | |||
| Reference Intervals | |||
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See patient report. |
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| Alternate Names | |||
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| Reference Lab | |||
| Quest Diagnostics Nichols Institute | |||
| Testing Schedule | |||
| Routine, 1 time per week | |||
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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