Helped Information and Courses from MediaLab, Inc.
These are the MediaLab courses that cover Helped and links to relevant pages within the course.
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| A 31 year old male missionary worker recently returned from Africa where he helped a small rural community update their sanitation practices. He presented to his physician weak and complained of recent weight loss, abdominal pain, and diarrhea that was often bloody. The doctor ordered a battery of tests including a complete blood count (CBC) and stool for parasite examination. The CBC revealed eosinophilia and anemia. This suspicious form was seen on the wet preparations. It measured 52 µm by 27 µm. What parasite is mostly likely present? | View Page |
| Using probability (p) values The p value is a statistical tool that increases the confidence that an antibody has been identified with a scientifically acceptable level of uncertainty (0.05). As applied to antibody identification, it is computed using Fisher's exact test. Tidbit: This is the same Fisher who helped developed the Fisher-Race theory of Rh inheritance.The p value is calculated using the number of cells that are positive and negative with the patient's plasma. Calculating p values is beyond the scope of this case study but basic understanding of p values at the conceptual level is covered. | View Page |
| When the patient's plasma was non-reactive with panel cells, and very weak and unidentifiable in the post-transfusion RBC eluate, no attempt was made to try to enhance the weak antibodies.We now know that the patient has anti-Jka and that it disappeared rapidly from the patient's plasma after transfusion with two group O Rh-negative RBC. Consider the question below, then click on the question to receive the answer. | View Page |