The document contains multiple case studies describing various medical conditions and requesting summaries of signs and symptoms, pathophysiology, management, and other relevant details. The cases include ascariasis, peptic ulcer disease, infective hepatitis, renal failure, cholera, hypertension, malaria, typhoid fever, sickle cell anemia, diarrhea, HIV/AIDS, pneumonia, congestive cardiac failure, schistosomiasis, meningitis, cerebral malaria, placenta praevia, and epilepsy. For each case, the writer is asked to provide definitions, diagrams, discussions, and nursing care plans addressing the topics listed.