Children's Mercy Hospitals and Clinics
Name
Quantiferon- TB Gold In-Tube

Synonyms
Mycobacterium/TB Quantiferon
Quantiferon (Gold) TB
TB Quantiferon (Gold)

CMH Lab Section
Immunology

Specimen Requirements
Requires special collection tubes

Availability
Specimens can only be drawn Monday 0600-Thursday 1800 or Friday 0800-1800, no weekends or holidays

Collections are done by trained Lab staff


Turn Around Time
3-5 days

Special Instructions

Draw 1-mL blood in each of 3 Quantiferon-TB Gold collection tubes (grey with white, red with white & purple with white)
Shake tubes firmly 10 times to coat entire inner surface of the tube
Keep specimens at room temperature
Send to the Immunology Lab ASAP

Recommended by the 2009 Redbook as an alternative to the TST for healthy children 5-years of age and older

Methodology
IGRA, IFN-gamma test measuring responses to ESAT-6, CFP-10 and TB7.7 peptide antigens
CELLESTIS QuantiFERON-TB Gold (in-tube method)

Ranges
Positive: M.tuberculosis infection likely
Negative: M.tuberculosis infection NOT likely
Indeterminate: results are indeterminate for TB Antigen responsiveness.

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