Traditionally, the preliminary identification of C. albicans was made through the use of the GTT. However, this test
gives also positive results in case of C. dubliniensis. Consistent with our GTT results, some studies reported similar
sensitivity rates but with 100% specificity. Other studies reported lower sensitivity and specificity rates (79.3% and
69.2%, respectively), or higher rates ranging from 92 to 98.8% and 99 to 100%, respectively. Limitations of this test include misinterpretation of elongated blastoconidia as germ tube, absence of germ tube production in some strains of C. albicans, and health hazards of handling pooled sera.