images

Lab with Artificial Intelligence

QuantiFERON

Shape Shape

QuantiFERON TB Gold Plus Blood Collection Guidelines

Provide clear information about the QuantiFERON-TB Gold test, a blood test used to detect latent tuberculosis infection (LTBI).

01 Draw 2 mL of Blood directly into QFT Plus Blood Collection Tubes
  • As 1 mL tubes draw blood relatively slowly, keep the tube on the needle for 2-3 seconds once the tube appears to have completed filling
  • The black mark on the side of the tubes indicates the validated range of 0.8 to 1.2 mL. If the level of blood in any tube is outside of the indicator mark, a new blood sample should be obtained.
  • If a butterfly needle assembly is being used to collect blood, a purge plain red top tube should be used to ensure that the tubing is filled with blood prior to the QFT-Plus Blood Collection Tubes being used.
QuantiFERON TB Gold Plus Blood Collection Guidelines
02 Tube Shaking

Immediately after filling the tubes, shake them ten (10) times just firmly enough to coat the inner surface. Overly vigorous shaking may cause gel disruption and aberrant results.

03 Tube Transportation

Immediately after filling the tubes, shake them ten (10) times just firmly enough to coat the inner surface. Overly vigorous shaking may cause gel disruption and aberrant results.

  • As 1 mL tubes draw blood relatively slowly, keep the tube on the needle for 2-3 seconds once the tube appears to have completed filling
  • The black mark on the side of the tubes indicates the validated range of 0.8 to 1.2 mL. If the level of blood in any tube is outside of the indicator mark, a new blood sample should be obtained.