Internal medicine notes

Apr 16th, 2015
Studypool Tutor
Price: $10 USD

Tutor description

Word Count: 1239
Showing Page: 1/29
DIARRHEADefinition Diarrhea is loosely defined as passage ofabnormally liquid or unformed stools at anincreased frequency. For adults on a typical Western diet, stool weightexceeding 200 g/d can generally be considereddiarrheal. Because of the fundamental importance ofduration to diagnostic considerations, diarrheamay be further defined as acute if <2 weeks,persistent if 2 to 4 weeks, and chronic if >4 weeksin duration.ACUTE DIARRHEA More than 90% of cases of acute diarrhea arecaused by infectious agents; these cases areoften accompanied by vomiting, fever, andabdominal pain. The remaining 10% or so are caused bymedications, toxic ingestions, ischemia, andother conditions.Infectious agents Most infectious diarrheas are acquired by fecaloral transmission via direct personal contact or,more commonly, via ingestion of food or watercontaminated with pathogens from human oranimal feces. Acute infection or injury occurs when theingested agent overwhelms the host's mucosalimmune and nonimmune (gastric acid, digestiveenzymes, mucus secretion, peristalsis, andsuppressive resident flora) defenses.Cont. The pathophysiology underlying acutediarrhea by infectious agents producesspecific clinical features that may also behelpful in diagnosis Profuse watery diarrhea secondary to smallbowel hypersecretion occurs with ingestion ofpreformed bacterial toxins, enterotoxinproducing bacteria, and enteroadherentpathogens

Review from student

Studypool Student
" Solid work, thanks. "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1821 tutors are online

Other Documents


Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors