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Test ID LAD1 Leukocyte Adhesion Deficiency Type 1, CD11a/CD18 and CD11b/CD18 Complex Immunophenotyping, Blood

Useful For

Aids in the diagnosis of leukocyte adhesion deficiency syndrome type 1, primarily in patients younger than 18 years of age


CD11a, CD11b, and CD18 phenotyping

Method Name

Flow Cytometric Immunophenotyping
Includes evaluation of markers CD11a/CD18 and CD11b/CD18.

Reporting Name

Leukocyte Adhesion Def. Type 1, B

Specimen Type

Whole Blood EDTA

Shipping Instructions

Specimens are required to be received in the laboratory weekdays and by 4 p.m. on Friday. Draw and package specimen as close to shipping time as possible.


It is recommended that specimens arrive within 24 hours of draw.


Samples arriving on the weekend and observed holidays may be canceled.

Necessary Information

Date and time of draw and physician name and phone number are required.

Specimen Required

For serial monitoring, we recommend that specimen draws be performed at the same time of day.


Container/Tube: Lavender top (EDTA)

Specimen Volume: 5 mL

Collection Instructions: Send specimen in original tube. Do not aliquot.

Specimen Minimum Volume

2 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole Blood EDTA Ambient 72 hours

Reference Values

Normal (reported as normal or absent expression for each marker)

Day(s) and Time(s) Performed

Monday through Friday

Do not send specimen after Thursday. Specimen must be received by 10 a.m. on Friday.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information


88185 x 2

LOINC Code Information

Test ID Test Order Name Order LOINC Value
LAD1 Leukocyte Adhesion Def. Type 1, B In Process


Result ID Test Result Name Result LOINC Value
81155 Leukocyte Adhesion Deficiency, B No LOINC Needed
430 CD11a In Process
388 CD11b In Process
431 CD18 In Process
432 LAD Interpretation 69052-9

Test Classification

This test was developed using an analyte specific reagent. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

NY State Approved