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Questions and Answers
Healthy stool is characterized by being red in color.
Healthy stool is characterized by being red in color.
False (B)
The pH range for a healthy stool falls between 6.1 and 7.9.
The pH range for a healthy stool falls between 6.1 and 7.9.
True (A)
It is recommended to collect fecal samples in a wet container to preserve the quality of the specimen.
It is recommended to collect fecal samples in a wet container to preserve the quality of the specimen.
False (B)
Stool should be refrigerated if it will take more than 1 hour to bring it to the laboratory.
Stool should be refrigerated if it will take more than 1 hour to bring it to the laboratory.
One should avoid consuming iron-containing drugs, meat, and fish at least 24 hours before collecting a stool sample for occult blood examination.
One should avoid consuming iron-containing drugs, meat, and fish at least 24 hours before collecting a stool sample for occult blood examination.
The color of normal adult stool is mainly due to the presence of iron pigments.
The color of normal adult stool is mainly due to the presence of iron pigments.
Green color in feces could be a result of consuming a diet rich in spinach.
Green color in feces could be a result of consuming a diet rich in spinach.
The presence of mucus in stool samples may facilitate the identification of trophozoites.
The presence of mucus in stool samples may facilitate the identification of trophozoites.
Clay-colored stools are indicative of bleeding from the lower gastrointestinal tract.
Clay-colored stools are indicative of bleeding from the lower gastrointestinal tract.
The abnormal feature in stool samples that may include Ascaris lumbricoides and Taenia spp. segments is blood.
The abnormal feature in stool samples that may include Ascaris lumbricoides and Taenia spp. segments is blood.
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Study Notes
Characteristics of Healthy Stool
- Has a red color
- pH range falls between 6.1 and 7.9
Collecting and Preserving Fecal Samples
- Fecal samples should be collected in a wet container to preserve quality
- If it takes more than 1 hour to bring to the laboratory, stool should be refrigerated
Preparing for Occult Blood Examination
- Avoid consuming iron-containing drugs, meat, and fish at least 24 hours before collecting a stool sample
Factors Affecting Stool Color
- Normal adult stool color is mainly due to the presence of iron pigments
- Green color in feces can result from consuming a diet rich in spinach
- Clay-colored stools indicate bleeding from the lower gastrointestinal tract
Identification of Trophozoites
- Presence of mucus in stool samples can facilitate the identification of trophozoites
Abnormal Features in Stool Samples
- Presence of blood in stool samples may indicate the presence of Ascaris lumbricoides and Taenia spp. segments
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