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Test Code Billings Clinic:9809 Mayo:CHLBF Cholesterol, Body Fluid

Reporting Name

Cholesterol, BF

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Aiding in the diagnosis of a cholesterol effusion or cholesterol-rich pseudochylous effusion in body fluids

 

Distinguishing between chylous and pseudochylous pleural effusions

 

Distinguishing between malignant and nonmalignant ascites

Method Name

Colorimetry


Ordering Guidance


This test provides a measurement of cholesterol in body fluids, which is useful for screening of a cholesterol effusion or cholesterol-rich pseudochylous effusion. To distinguish between chylous and nonchylous effusions, order BFLA1 / Lipid Analysis, Body Fluid; which measures cholesterol and triglyceride concentrations, as well as chylomicrons and plasma lipoproteins.



Necessary Information


1. Date and time of collection are required.

2. Specimen source is required.



Specimen Required


Preferred Source:

-Peritoneal fluid (peritoneal, abdominal, ascites, paracentesis)

-Pleural fluid (pleural, chest, thoracentesis)

-Drain fluid (drainage, JP drain)

-Pericardial fluid

Acceptable Source: Write in source name with source location (if appropriate)

Collection Container/Tube: Sterile container

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Centrifuge to remove any cellular material and transfer into a plastic vial.

2. Indicate the specimen source and source location on label.


Specimen Type

Body Fluid

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Body Fluid Frozen (preferred) 30 days
  Refrigerated  7 days
  Ambient  24 hours

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus Reject
Anticoagulant or additive Amniotic fluid Breast milk Saliva Nasal secretions Sputum Synovial fluid Bronchoalveolar lavage (BAL) or bronchial washings Colostomy/ostomy Feces Spinal fluid Gastric secretions Urine Vitreous fluid Reject

Reference Values

An interpretive report will be provided.

Interpretation

Pleural fluid cholesterol concentrations between 46 to 65 mg/dL are consistent with exudative effusions. Cholesterol concentrations above 200 mg/dL suggest a pseudochylous effusion.(2)

 

Peritoneal fluid cholesterol concentrations between 33 to 70 mg/dL suggest a malignant cause of ascites.(4)

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 2 days

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

84311-Spectrophotometry, analyte not specified (cholesterol)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CHLBF Cholesterol, BF 12183-0

 

Result ID Test Result Name Result LOINC Value
FLD25 Fluid Type: 14725-6
BFCHL Cholesterol (BF) 12183-0