Ordering Guidance

The IABCS is a panel test. This test requires two separate whole blood EDTA specimens at two different transport temperatures: one ambient and one refrigerate.

The TBBS / Quantitative Lymphocyte Subsets: T, B, and Natural Killer (NK) Cells, Blood is automatically performed, a separate order is not required.

If only an ambient EDTA specimen is received, only the TBBS / Quantitative Lymphocyte Subsets: T, B, and Natural Killer (NK) Cells, Blood will be performed. If only a refrigerate EDTA sample is received, this test will be canceled and converted to RBCS / Relative B-Cell Subset Analysis Percentage, Blood, which provides the relative B-cell subset values without quantitation.

This test is a screening test and further analyses will be required to complete a diagnostic workup for hyper-IgM (XHIM / X-Linked Hyper IgM Syndrome, Blood and CD40 / B-Cell CD40 Expression by Flow Cytometry, Blood).

Shipping Instructions

Testing performed Monday through-Friday. Specimens not received by 4pm (CST) on Friday may be canceled.

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

Collect and package specimens as close to shipping time as possible.

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

Necessary Information

1. Date of collection is required.

2. Ordering healthcare professional name and phone number are required.

Specimen Required

Two separate EDTA whole blood specimens are required: 1 refrigerate and 1 ambient transport temperature.

For serial monitoring, it is recommended that specimens are collected at the same time of day.

Specimen Type: Whole blood for TBBS / Quantitative Lymphocyte Subsets: T, B, and Natural Killer (NK) Cells, Blood

Container/Tube: 4 mL Lavender top (EDTA)

Specimen Volume: 3 mL

Collection Instructions:

1. Send whole blood specimen in original tube. Do not aliquot.

2. Label specimen as TBBS.

3. Ship ambient.

Specimen Stability Information: Ambient <52 hours

Specimen Type: Whole blood for IABC / B-Cell Phenotyping Screen for Immunodeficiency and Immune Competence Assessment, Blood

Container/Tube: Lavender top (EDTA)

Specimen Volume:

≤14 years: 4 mL

>14 years: 10 mL

Collection Instructions:

1. Send whole blood specimen in original tube. Do not aliquot.

2. Label specimen IABC.

3. Ship refrigerate.

Specimen Stability Information: Refrigerated <48 hours