For the identification of a yeast infection in a patient, which test would not support a diagnosis of Candida albicans?

The identification of a yeast infection specifically related to Candida albicans can be assessed through a variety of tests that reveal the characteristics of this organism. In the context of the provided tests, the presence of pseudohyphae is a significant feature of Candida species, including C. albicans.

Therefore, if a sample shows positive results for pseudohyphae, it actually supports the presence of Candida, as this morphological feature is typically associated with this fungus. Conversely, the presence of pseudohyphae would not indicate a lack of C. albicans; instead, it suggests the likelihood of a Candida infection.

To clarify the reasoning behind the other tests: a urease positive result is generally associated with other fungi and does not support C. albicans; a negative germ tube test can also be indicative of non-albicans species, as C. albicans typically forms germ tubes under specific conditions; and the presence of blastospores is consistent with Candida species. Each of these details contributes to the overall identification process, linking morphological characteristics directly to the fungal identity. Thus, a positive result for pseudohyphae aligns with the diagnosis of a Candida species, especially C. albicans, making it not supportive of a negative diagnosis.