MTB IGRA-Immunocompromise MTBIGRA

Synonyms	IGRA, interferon gamma; TB, MTB, latent TB
Allscripts (AEHR) Order Name	MTB IGRA-Immunocompromise
Sunrise Clinical Manager (SCM) Order Name	MTB lGRA-Immunocompromise
EPIC Order Name	MTB IGRA-Immunocompromise
Clinical Info	* This is a short stability test and requires special handling. * Draw Monday - Thursday only Test is an indirect test for M. tuberculosis infection (including disease) and is intended for use in conjunction with risk assessment, radiography and other medical and diagnostic evaluations. Only Orderable for Northwell Hospitals (RRL's)
Specimen Type	Blood
Specimen Volume	Adults and children ≥10 years: 6 mL whole blood collected in a Greiner 9 mL lithium heparin (DARK GREEN-TOP) tube (6 mL min) Pediatric 2-9 years of age: 4 mL whole blood collected in a Greiner 9 mL lithium heparin (DARK GREEN-TOP) tube (4 mL min) Pediatric <2 years of age: 2 mL whole blood collected in a Greiner 9 mL lithium heparin (DARK GREEN-TOP) tube (2 mL min) Immunocompromised individuals Adults and children ≥10 years: 9 mL whole blood collected in a Greiner 9 mL lithium heparin (DARK GREEN-TOP) tube (9 mL min)
Container	Requires Special Lithium Heparin (DARK GREEN) Greiner 9 mL tube whole blood or Sodium Heparin (DARK GREEN) Greiner tube whole blood or Sodium Heparin (DARK GREEN) tube) *DO NOT USE A MINT GREEN LITHIUM HEPARIN PLASMA TUBE*
Collection Instructions	Container/Tube: Greiner 9mL lithium heparin (DARK GREEN-TOP) tube. Adults and children ≥10 years: 6 mL whole blood collected in a Greiner 9 mL lithium heparin (DARK GREEN-TOP) tube (6 mL min) Pediatric 2-9 years of age: 4 mL whole blood collected in a Greiner 9 mL lithium heparin (DARK GREEN-TOP) tube (4 mL min) Pediatric <2 years of age: 2 mL whole blood collected in a Greiner 9 mL lithium heparin (DARK GREEN-TOP) tube( 2 mL min) Immunocompromised individuals Adults and children ≥10 years: 9 mL whole blood collected in a Greiner 9 mL lithium heparin (DARK GREEN-TOP) tube (9 mL min) Collect blood by venipuncture into a provided Greiner 9 mL lithium heparin (DARK GREEN-TOP) tube. The tube contents must be inverted (8-10 times) to ensure that the whole blood is mixed thoroughly with the anticoagulant. Date and time of draw are required and must be provided.
Transport Instructions	Room Temperature
Specimen Stability	54 Hours Room Temperature Unacceptable Refrigerated Unacceptable Frozen
Methodology	Enzyme-Linked Immunosorbent (ELISPOT) Assay
Days Performed	TAT: 3-4 Days
Performing Laboratory	Quest Diagnostics Nichols Institute
CPT	86481
PDM	235040
Result Interpretation Negative
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