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TRH stimulation test. Prior to the availability of sensitive TSH assays, thyrotropin releasing hormone (TRH) stimulation tests were relied upon for confirming and assessing the degree of suppression in suspected hyperthyroidism. Typically, this stimulation test involves determining basal TSH levels and levels 15 to 30 minutes after an intravenous bolus of TRH.
TRX is a total-body suspension-training workout, which means it involves working against gravity to perform moves that activate different muscle groups â all while the upper or lower body is suspended above ground.