Amylase, other body fluids-13370

Test info

  
Amylase, other body fluids
  
13370
  
LAB13370
  
AMYBF
  
Cyst fluid amylase
  

Pancreatitis with or without pseudocyst formation or pancreatic pleural fistula is the most common cause of amylase elevation in pleural fluid. Rupture of the esophagus is the second most common group and malignant effusion is the third. Other causes include pancreatic ascites and pancreatic duct trauma. Defect in the wall of the gastrointestinal tract (eg, perforated peptic ulcer) will allow pancreatic secretion to enter the peritoneal cavity. Similarly, peritoneal fluid amylase elevations may be found in the presence of necrotic bowel. Peritoneal fluid, containing such amylase, can find its way into a pleural space.

Specimen

  
Body fluid: ascitic, cyst or lymph fluid
  
1.0 mL
  
0.5 mL
  

Transfer aspirated fluid to a Transfer vial/tube with cap - 12mL (LabCorp) as soon as possible after collection.

  
  • Source of fluid (eg, synovial, cyst)
  

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x 3

Performance

  
LabCorp Burlington (088062): R-LC
  
Daily
  
1 - 2 days
  

Enzymatic

Clinical and Interpretive info

  

Lymph:    50 - 83

Synovial: not established

  

Pancreatitis with or without pseudocyst formation or pancreatic pleural fistula is the most common cause of amylase elevation in pleural fluid. Rupture of the esophagus is the second most common group and malignant effusion is the third. Other causes include pancreatic ascites and pancreatic duct trauma. Defect in the wall of the gastrointestinal tract (eg, perforated peptic ulcer) will allow pancreatic secretion to enter the peritoneal cavity. Similarly, peritoneal fluid amylase elevations may be found in the presence of necrotic bowel. Peritoneal fluid, containing such amylase, can find its way into a pleural space.

Billing

  
82150
  
Result 1795-4

Tracking

  
03/27/2019
  
03/29/2021
  
02/12/2021