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HelpTest Code RPCWT Renal Pathology Consultation, Wet Tissue
Ordering Guidance
This test is for a renal wet tissue consultation only. For a consultation on paraffin embedded renal tissue and slides, order PATHC / Pathology Consultation.
Shipping Instructions
1. Advise shipping specimens in Styrofoam transportation coolers to avoid extreme hot or cold temperatures and to ensure specimens are received at required specimen transport (stability) temperature.
2. Attach the green "Attention Pathology" address label (T498) to the outside of the transport container before putting into the courier mailer.
Necessary Information
All requisition and supporting information must be submitted in English.
The following information is required:
1. All requisitions must be labeled with:
-Patient name, date of birth, and medical record number
-Name and phone number of the referring nephrologist/pathologist or ordering provider
-Anatomic site and collection date
2. A brief patient history is essential to achieve a consultation fully relevant to the ordering provider’s needs.
3. Additional information needed:
-Recent nephrology consultation notes
-History and physical progress notes
-Recent laboratory test results, including serologies (eg, renal/kidney function panel, antinuclear antibodies, anti-glomerular basement membrane antibodies, C3/C4, serum or urine protein electrophoresis, serum albumin, hepatitis/HIV screen, urinalysis)
Specimen Required
Specimen Type: Kidney biopsy
Supplies: Renal Biopsy Kit (T231)
Specimen Volume: Entire specimen
Collection Instructions: Collect and prepare biopsy specimens per instructions in Renal Biopsy Procedure for Handling Tissue for Light Microscopy, Immunofluorescent Histology, and Electron Microscopy.
Additional Information: On Saturdays and holidays, RUSH (same day as receipt) interpretation is available for clinically emergent cases (eg, acute kidney failure, rapidly progressive glomerulonephritis, acute kidney allograft dysfunction) but requires advanced notification and approval by a Mayo Clinic Renal Pathologist (507-284-5677).
To request RUSH service outside of regular business hours, contact Mayo Clinic Laboratories at 800-533-1710.
Forms
1. Renal Biopsy Patient Information
2. If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.
Useful For
Evaluating and managing patients with kidney disease
Following the progression of known kidney disease or response to therapy
Determining the cause of dysfunction in the transplanted kidney (allograft)
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| EMR | EM, Renal Biopsy | No, (Bill Only) | No |
| IFPCA | IF Additional | No, (Bill Only) | No |
| IFPCI | IF Initial | No, (Bill Only) | No |
| LV4RP | Level 4 Gross and Microscopic, RB | No, (Bill Only) | No |
| SS2PC | SpecStain, Grp II, other | No, (Bill Only) | No |
Special Instructions
Method Name
Pathology Consultation
Reporting Name
Renal PathologySpecimen Type
Kidney BiopsySpecimen Minimum Volume
See Specimen Required
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Kidney Biopsy | Ambient (preferred) | ||
| Refrigerated | |||
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Clinical Information
The Mayo Renal Pathology service is staffed by board-certified pathologists who have a special interest in non-neoplastic diseases of the kidney.
Kidney biopsy has proven to be of value in the clinical evaluation and management of patients with kidney disease, including acute and chronic renal insufficiency, nephrotic syndrome, nephritic syndrome, proteinuria, and hematuria, and in the overall management of kidney transplant recipients.
Optimal interpretation of a kidney biopsy requires integration of clinical and laboratory results with light microscopic, immunofluorescent histology, and electron microscopy findings.
Reference Values
Results of the consultation are reported in a formal pathology report, which may include a description of ancillary test results (if applicable) and an interpretive comment.
Day(s) Performed
Monday through Saturday
Report Available
2 to 10 days; Cases requiring additional material or ancillary testing may require additional time.Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
88305 (If appropriate)
88348 (If appropriate)
88313 (If appropriate)
88346 (If appropriate)
88350 (If appropriate)