TSTS


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TSTS

(Triple SIM Triple Standby) See multi-SIM.
References in periodicals archive ?
* Substitute IGRA blood tests for TSTs. Clinicians who use the IGRA blood tests should be aware that the criteria for test interpretation are different from the criteria for interpreting TSTs (3).
* Prioritize allocation of TSTs, in consultation with state and local public health authorities.
Although overall test concordance is high, switching between PPD skin test products or TSTs and blood tests in serial testing might result in apparent conversions from negative to positive or reversions from positive to negative that might be attributable to inherent interproduct or intermethod discordance rather than change in M.
Substitute IGRA blood tests for TSTs. Although the costs associated with the blood tests themselves can be greater than the cost of TSTs, the use of the blood tests might be more cost-effective in certain settings because their improved specificity in persons who have had previous Bacille Calmette-Guerin (BCG) immunization or exposure to nontuberculous mycobacteria might allow for better targeting of preventive therapy.
Allocate TSTs to priority indications, such as TB contact investigations, as determined by public health authorities.
Some surveillance programs for TB infection control rely on routine serial TSTs. Switching products or methods might make changes in serial results difficult to interpret: the apparent conversions of results from negative to positive or reversions from positive to negative could be caused by inherent inter-product or intermethod discordance (1,5).
The fire department had instituted TSTs in June 2006 to comply with National Fire Protection Association guidelines that recommend annual TSTs for all firefighters.
However, because no reason for the positive TSTs among the firefighters was identified, the community continued to be concerned about possible ongoing TB transmission.
Four months after the two-step TSTs were administered, on October 27, blood samples were collected from all nine firefighters for QuantiFERON[R]-TB Gold (QFT-G) (Cellestis Limited, Carnegie, Victoria, Australia) testing to measure immune reactivity to Mycobacterium tuberculosis.