Cytomegalovirus (CMV) CD8 T-Cell Immune Competence, Quantitative Assessment by Flow Cytometry
Specimen Type Describes the specimen type needed for testing
WB Sodium Heparin
Patient must be cytomegalovirus (CMV)-seropositive and have 1 or more of the 5 major histocompatibility complex (MHC) alleles: HLA A1, A2, B7, B8, or B35 to utilize this assay.
Additional Testing Requirements
It is important to ascertain the patient's and the donor's cytomegalovirus (CMV) serostatus, as well as the patient's MHC class I HLA haplotype, before ordering this assay; see either:
SSO1 / HLA Class I Molecular Phenotype, Blood
DISI / HLA Class I Molecular Typing Disease Association
Specimens are required to be received in the laboratory weekdays and by 4 p.m. on Friday.
It is recommended that specimens arrive within 24 hours of draw. Draw and package specimen as close to shipping time as possible.
Specimens arriving on the weekend may be canceled.
Ordering physician's name and phone number are required.
Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.
Supplies: Ambient Mailer - Critical Specimens Only (T668)
Container/Tube: Green top (sodium heparin)
Specimen Volume: 20 mL
Collection Instructions: Send specimen in original tube. Do not aliquot.
Additional Information: For serial monitoring, we recommend that specimen draws be performed at the same time of day. Timing and consistency in timing of blood collection is critical when serially monitoring patients for lymphocyte subsets. See data under Clinical Information.
Quantitative CMV Immune Competence Assay Patient Information (T592) in Special Instructions.
Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.
Mild OK; Gross reject
Mild OK; Gross reject
Lithium heparin; Green-top micro tube (lithium heparin)
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.
|WB Sodium Heparin||Ambient||48 hours|