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Creatinine, pericardial, peritoneal, pleural, drain, and transplant drainage fluid-86

Test info

Test name:

Creatinine, pericardial, peritoneal, pleural, drain, and transplant drainage fluid

Test number:

Excellian order number:

82570.1

Abbreviation:

CRF

Useful for:

Identifying the presence of urine as a cause for accumulation of fluid in a body compartment

Specimen

Specimen type:

Pericardial, peritoneal, pleural, drain fluid, transplant drainage fluid

Collection container:

Sterile vial/container

Volume:

1.0 mL

Minimum volume:

0.5 mL

Collection instructions:

Collect specimen in a sterile container

Processing instructions:

Centrifuge 5-10 minutes to remove cellular material.
Transfer supernatant to a False bottom plasma/serum transport vial/tube (AHL) and refrigerate.

Transport container:

False bottom plasma/serum transport vial/tube (AHL)

Transport and stability:

Refrigerated - 5 days

Reason for rejection:

Improper labels (unlabeled or mislabeled)
Hemolysis (some procedures)
Delay in transport
Improper storage temperature affecting results
Inappropriate timing of collection
Improper container
Leaking container resulting in compromised specimen
Quantity not sufficient (QNS)

Performance

Performing lab:

AHL - Chemistry: C

Days set up:

Daily

TAT:

1 day

Method:

Kinetic-Jaffe (Kinetic Alkaline Picrate)

Clinical and Interpretive info

Reference ranges:

Undefined

Clinical information:

Normal body fluid creatinine concentrations similar to serum Creatinine concentrations. Body fluid/ serum creatinine ratios >1.0 suggest the specimen may be contaminated with urine.

Billing

CPT codes:

82570

Tracking

Date created:

11/30/2001

Revised date:

04/09/2024

Review date:

01/14/2024