Feulgen

Special stain · Urology

Feulgen stain is a staining technique discovered by Robert Feulgen and used in histology to identify chromosomal material or DNA in cell specimens. Schiff's aldehyde reagent is the stain used. The great value of the Feulgen procedure is the manner in which cells are pretreated so that DNA furnishes the only available aldehyde to react with Schiff's reagent.

Assay Description

Specimen Requirements

40 cc freshly collected urine mixed with an equal volume of PreservCyt Solution. Please indicate source urine: voided, catherized or bladder washing or one (1) unstained cytology slide prepared by cellular enhancement technique.

Storage and Transport

Store PreservCyt® Solution or NuCyte Solution with urine specimen between 4°C and 30°C. Process sample within 48 hours.

Specimen Rejection Criteria

All specimens must be submitted according to the test directory instructions. Before submitting specimen, please carefully review specimen requirements.

Listed below are possible causes for delays in specimen processing or possible specimen rejections or cancellations:

No patient identification on requisition form
No patient identification on specimen container or slides
No referring provider
No account information provided
No test ordered on requisition
No specimen source provided
Inappropriate specimen type
Insufficient volume for analysis
Inappropriate specimen container
Improper specimen transport
Specimen leaked in transport
Specimen submitted in incorrect or expired transport media
Slides broken beyond repair on receipt
Conflict between patient name on specimen and requisition form
Specimen not properly preserved
Sample containing a needle

A representative from Client Services will attempt to contact your office to resolve specimen problems. Additional documentation may be requested from your office to be returned by fax. In the event that resolution is not possible, the specimen may be returned to your office.

Turn Around Time (TAT)

2-3 Days.

CPT Codes*

88313