Gram positive cocci Information and Courses from MediaLab, Inc.

These are the MediaLab courses that cover Gram positive cocci and links to relevant pages within the course.

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Current Topics in Clinical Microbiology
The Gram stain report to be issued based on the microscopic characteristics seen in the accompanying picture would most correctly be, "many wbc with"..	View Page
Based on the gram stain morphology observed before, the possible presumptive identifications might include "gram positive cocci consistent with...	View Page
Enterococcus ID Illustrated in this composite photograph is the gram stain of Enterococcus species (upper), illustrating gram positive cocci arranged in pairs and short chains.The viridans streptococci generally form gram positive cocci in long chains; the gram-positive cells of S. pneumoniae, on the other hand, may appear similar in gram stain.In the lower right is shown a 6.5% NaCl tube. The turbidity indicates growth, a unique characteristic for Enterococcus species.In the lower left frame is a picture of a bile esculin hydrolysis slant, showing a positive reaction (black pigment) characteristic of Enterococcus species. The streptococci are uniformly negative.Some strains of Leuconostoc species and Pediococcus species can grow in 6.5% NaCl and are bile-esculin positive; however, they should be ruled out because of the negative PYR reaction.	View Page
The Gram stain prepared from the positive blood culture is shown in the photograph. The appropriate report is:	View Page
A Brown and Brenn gram stain was performed on one of the tissue biopsy specimens. Organisms were seen as shown in the photograph. Based on the history and the appearance of the bacteria, the most likely identification is:	View Page

Reading Gram Stained Direct Smears
Gram positive cocci (GPC) Gram positive cocci(GPC) can be seen in clumps and chains in this picture. Gram positive cocci(GPC) in chains may represent streptococci. Gram positive cocci in clumps may represent staphylococci.	View Page
Epithelial cell In the center of this picture, there is one large epithelial cell. There are three white cells in a line below the epithelial cell. Many gram positive cocci can be seen. Notice they are primarily in chains.	View Page
In this slide, which structure or structures are present? (Choose ALL of the correct answers)	View Page
In this slide, which structure or structures are present? (Choose ALL of the correct answers)	View Page
In this slide, what is the conspicuous structure?	View Page

Reading Gram Stained Smears From Cultures
Please select the correct choice for reporting.	View Page
Please select the correct choice for reporting.	View Page
Please select the correct choice for reporting.	View Page
Please select the correct choice for reporting.	View Page
Please select the correct choice for reporting.	View Page
Please select the correct choice for reporting.	View Page
Please select the correct choices for reporting.	View Page
Please select the correct choice for reporting.	View Page

White Cell and Platelet Disorders: Peripheral Blood Clues to Nonneoplastic Conditions
Match the letters representing the peripheral white blood cells with the most likely associated clinical conditions.	View Page