PT  - JOURNAL ARTICLE
AU  - W. C. Watson
TI  - Symposium on diarrhea. 2. Clinical diagnosis of the causes of diarrhea
DP  - 1977 Apr 09
TA  - Canadian Medical Association Journal
PG  - 739--741
VI  - 116
IP  - 7
4099  - http://www.cmaj.ca/content/116/7/739.short
4100  - http://www.cmaj.ca/content/116/7/739.full
SO  - CMAJ1977 Apr 09; 116
AB  - Elucidation of the cause of diarrhea is facilitated by considering which of three principal determinants are of relevance in a particular case. These determinants relate to the onset (whether diarrhea is acute or chronic), to infection or an absence ofinfection and to the presence in the stool of blood or mucus, or both. Diagnosis is also facilitated by taking an accurate and full history, conducting a physical examination, performing sigmoidoscopy and, with proper care, attempting a therapeutic diagnosis. Findings from investigations should then enable one to arrive at a diagnosis. The diagnosis can be reached in an orderly fashion by classifying the types of diarrhea into eight categories: with respect to the acute or chronic onset a case of diarrhea may be noninfectious, without blood or mucus in the stool; noninfectious, with blood or mucus, or both; infectious, without blood or mucus; and infectious, with blood or mucus in the stool.