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HelpTest Code LAD1 Leukocyte Adhesion Deficiency Type 1, CD11a/CD18 and CD11b/CD18 Complex Immunophenotyping, Blood
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Whole Blood EDTAShipping Instructions
Testing is performed Monday through Friday. Specimens not received by 4 p.m. (CST) on Friday may be canceled.
Draw and package specimen as close to shipping time as possible. It is recommended that specimens arrive within 24 hours of draw.
Specimens arriving on the weekend and observed holidays may be canceled.
Necessary Information
Date and time of collection and healthcare professional name and phone number are required.
Specimen Required
Container/Tube: Lavender top (EDTA)
Specimen Volume: 5 mL
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Additional Information: For serial monitoring, it is recommended that specimens are collected at the same time of day.
Specimen Minimum Volume
2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood EDTA | Ambient | 72 hours | PURPLE OR PINK TOP/EDTA |
Reference Values
Normal (reported as normal or absent expression for each marker)
Day(s) Performed
Monday through Friday
CPT Code Information
86356 x 3
Report Available
3 to 4 daysSpecimen Retention Time
4 daysReject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
Genetics Test Information
ITGB2 is located on the long arm of chromosome 21(21q22.3). It encodes the common beta 2 integrin subunit (CD18), which is necessary for the expression of lymphocyte function-associated antigen 1 (CD11a/CD18), Mac-1/CR3 (CD11b/CD18), and p150/95 (CD11c/CD18).
Variants in this gene are the underlying cause for the autosomal recessive leukocyte adhesion deficiency type 1.