粪便检查（Stool examination）.docVIP

粪便检查（Stool examination） The eleventh chapter fecal examination ? Section 1 specimen collection This section points: (1) Introduction (2) specimen containers (3) specimens (a) water accounted for about 3/4 overview of normal fecal solids, accounting for about 1/4, including food residue, digestive tract secretions and intestinal exfoliated epithelial cells, inorganic salt and a large number of bacteria. The main purpose of stool examination is: understand the digestive tract and liver, biliary tract, pancreas and other organs have no inflammation, bleeding, ulcer, cancer and parasitic infections; according to the characteristics and composition of feces, liver, gallbladder, pancreas judgment and other organ functions; there is no analysis of intestinal pathogens or imbalance of intestinal flora, to prevent intestinal infectious disease; fecal occult blood test as a screening test for malignant tumor of digestive tract. (two) containers for specimen containers shall be clean, dry, covered, free of water absorption and leakage. For bacteriological examination, fecal specimens should be collected in sterilized and covered containers. (three) the amount of samples collected from 1. samples: the fresh feces collected from finger size (about 3 ~ 5g) were collected in clean, dry and non absorbent containers. Fecal specimens should be collected in a sterile vessel during bacteriological examination. 2., inspection time: specimen collection, generally should be completed within 1h inspection, otherwise, because of pH changes and digestive enzymes role, so that the visible components of decomposition and destruction and pathogenic bacteria death, resulting in inaccurate results. Examination of the amoeba should be done immediately after defecation, and the specimens should be kept warm in winter. The nature of the 3. specimens were collected: should be selected containing mucus, pus and blood stool and other abnormal components. If there is no obvious abnormality in appearance