Granule Release Assay (HLH profile)


Granule Release Assay (HLH profile)

Request a test

When requesting this test please use the referral form provided. Please also refer to any additional information provided for this test. Download the referral form >

Additional information

A control sample is required. Further investigations will be undertaken if results are abnormal.

Sending address

Immunology Department
Level 4, Camelia Botnar Laboratories
Great Ormond Street Hospital
Great Ormond Street

Laboratory service


Sample requirements

5 mls EDTA

Reference range

Reported as Normal or Abnormal

Turnaround time

7 days

Disease / group

Familial Haemophagocytic Lymphohistiocytosis (HLH), FHL3, FHL4, FHL5, munc 13-4, syntaxin 11, munc 18-2


Upon request

Call in advance?

Please call in advance to ensure appropriate testing is performed.


The Clinical Immunology Laboratory at GOSH provides a dedicated paediatric immunology service, supported by an expert scientific and clinical team.

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