Ordering Recommendation

Use to quantify kappa and lambda light chains in paraffin. Includes interpretation.

Mnemonic
K/L P ISH
Methodology

In situ hybridization (ISH)

Performed

Mon-Fri

Reported

2-5 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Tissue.

Specimen Preparation

Formalin fix (10 percent neutral buffered formalin) and paraffin-embed tissue. Transport tissue block or 10 unstained 5 micron slides in a tissue transport kit (ARUP supply #47808). Available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. (Min: 5 slides) Protect paraffin block and/or slides from excessive heat.

Storage/Transport Temperature

Room temperature or refrigerated. Ship in cooled container during summer months.

Unacceptable Conditions

Specimens fixed or processed in alternative fixatives (alcohol, Prefer®) or heavy metal fixatives (B-4 or B-5). Decalcified or frozen specimens.

Remarks

Include surgical pathology report.
If multiple specimens (blocks or slides) are sent to ARUP, they must be accompanied by one of the following: an order comment indicating that the ARUP pathologist should choose the specimen most appropriate for testing (e.g., "Choose best block"), or individual orders for each sample submitted. A Pathologist Block Selection Fee (ARUP test code 3002076) will be added to orders that utilize the first option. If multiple specimens are sent to ARUP without a request for pathologist block/slide selection or individual orders, they will be held until clarification is provided.

Stability

Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable

Reference Interval
Interpretive Data

Refer to report. 

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

88368; 88369

Components
Component Test Code* Component Chart Name LOINC
3003586 Kappa/Lambda ISH Clonality
3003589 Kappa/Lambda ISH Ratio
3003591 Kappa/Lambda ISH Comment
3003619 H and E Slide Description
3003620 ISH Reference Number
3003621 ISH Tissue Source
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • HCAK1
  • IGKC
  • IGKCD
  • Km
Kappa/Lambda Light Chain Panel by in situ Hybridization on Paraffin