Acid-fast Information and Courses from MediaLab, Inc.
These are the MediaLab courses that cover Acid-fast and links to relevant pages within the course.
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| Which one of the following organisms do not usually stain with an acid-fast stain, or one of its variants: | View Page |
| Which of the following best describes the organisms seen in this illustration: | View Page |
| Which of the following best describes the organisms seen in this illustration: | View Page |
| Advantages of a Biopsy Specimen Examining the biopsy allows the structure of the marrow to be viewed as it exists in the body. It provides essential diagnostic information in conditions that disrupt the normal architecture, such as metastatic carcinoma, myelofibrosis, Hodgkin's lymphoma and granuloma. A biopsy may also be used to evaluate cellularity and identify acid-fast bacteria or fungi in less time than is needed for routine culture methods. One disadvantage of the tissue sections prepared from the biopsy sample is that morphologic detail is lost. For this reason, in many cases imprint slides or smears from the aspirated sample are also examined. | View Page |
| Match each of the microscopic structures listed in the drop-down box with the name of its corresponding yeast species on the right. | View Page |
| This photomicrograph is an acid-fast stained smear prepared from a yeast colony growing on ascospore agar. A helmet-shaped, red-staining, acid fast yeast cell is seen in the center of view at the tip of the arrow, against the background, blue-staining blastoconidia. The presumptive identification of Hansenula anomala was made. Predisposing conditions that may indicate that this isolate is more than a contaminant include: | View Page |