Escherichia Information and Courses from MediaLab, Inc.
These are the MediaLab courses that cover Escherichia and links to relevant pages within the course.
Learn more about laboratory continuing education for medical technologists to earn CE credit for AMT, ASCP, NCA, and state license renewal and recertification. Or get information about laboratory safety and compliance courses that deliver cost-effective OSHA safety training and continuing education to your laboratory's employees.
| Which of the following organisms is the most common cause of acute cystitis: | View Page |
| The most frequent cause of bacterial meningitis in older adults is: | View Page |
| Which of the following organisms is an obligate intracellular parasite: | View Page |
| Which one of the following organisms is typically urease negative: | View Page |
| The oxidase test is used to presumptively identify: | View Page |
| Which of the following organisms is most likely to be associated with gas gangrene: | View Page |
| The colonies shown in the blood agar (upper) and MacConkey agar (lower) biplate are a 24 hour growth from an aerobic blood culture bottle that became positive at 12 hours after inoculation. The appearance of the colonies on MacConkey agar rules out the following two bacterial species: | View Page |
| The reactions seen in the portion of the API strip shown in the photograph, effectively rules out Escherichia coli. | View Page |
| Clinical isolates of Escherichia coli and Klebsiella pneumoniae may possess ESBL activity. Therefore, clinical laboratories should be screening all clinically significant isolates of these two species. | View Page |
| Category B Agents in Food and Water A subset of Category B agents comprise pathogens that are food or waterborne. These pathogens include but are not limited to: Salmonella species Shigella dysenteriae Escherichia coli 0157:H7 Vibrio chloerae Cryptosporidium parvum | View Page |
| Quality Control Smears Quality control smears are stained at the same time as the patient's slides.They must be examined before you examine the patient's slides.If properly stained, the Staphylococcus aureus on the positive control slide will stain blue, or gram positive.The Escherichia coli on the negative control slide will stain red, or gram negative.If these slides are not stained properly, the problem must be resolved and new slides made before the patient specimen is examined. | View Page |
| The smears used for quality control are: (Choose ALL of the correct answers) | View Page |
| Control Slides Control slides must be checked before examining patients' smears. The positive control, Staphylococcus aureus, should stain blue and the negative control, Escherichia coli, should stain pink. Control slides serve as a quality control mechanism for staining reagents and techniques. Control slides should be prepared daily and when a new bottle/lot # of stain is used. | View Page |