Stool Flashcards
(29 cards)
Most human parasites habitate the_____ and in terms of diagnosis the most common specimen handled in a parasitology laboratory is the
intestines
STOOL
T or F
Oriental lung fluke may be seen in the stool in some cases
True
Human feces is called as____.
STOOL
Faeces / Feces is plural of latin term___ meaning______.
faex
RESIDUE
Stool is the waste residue of_______ of an animal’s digestive tract expelled through the anus during_____
indigestible materials
defecation
COMPOSITION of stool
● ¾ Water, ¼ Solid
● Undigested and Unabsorbed food ex . fiber/gulay
● Intestinal secretions/ mucus
● Bile pigments and Salts
● Bacteria and Inorganic material
● Epithelial cells, Leukocytes
Our body cannot digest ____ because we don’t have the enzyme ___
Cellulose
Cellulase
QUANTITY of stool
● Influence by the amount of ____ and _______ intake
●_______ diet increases the amount
● ______grams/day
water/ character of food
Vegetable
100-200
As a laboratory diagnostician, what will you consider are important in relation to stool collection?
MASS
A. Medications
B. Stool containers
C. Stool Contamination
D. Amount
What type of container should be used
Wide mouth and screw cap container
Example of ciliate found in water (could contaminate the specimen)
Paramecium
Medications
● Preparations like (3a) can mask the presence of parasites in the stool.
● Certain diagnostic procedures using (4) can produce the same effect
● Therefore, if stools turn out to be negative, there might be a need for a repeat examination after the diagnostic procedure or the treatment regimen is through.
antibiotics, anti-diarrheic drugs and antacids
bismuth, mineral oil, barium enema or gall bladder dyes
PATENT HISTORY
Hometown
Where did they go
Drugs or medcations
COLLECTION
● Universal Precaution
● It should be uncontaminated with Urine or any other body secretions.
● Properly named and always a fresh sample should be tested
only found in urine
Schistosoma haematobium
Trichonomas vaginalis
will degenerate in urine
trophozoites
Stool samples are to be submitted in covered containers with a_____
wide mouth
The cover prevents attracting insects specifically____, since ____ eggs might be mistaken for parasites.
flies
_______ prevent fecal odor from filling up the whole area, while the ______allows one to get required amount of stool sample from the container with ease.
Stool container
wide mouth
Example and function of mechanical vector
Carrier only
Drosophila melanogaster
Drosophila melanogaster can carry
Entamoeba Histolytica
Ascaris Lumbricoides
Trichuris Trichuria
The amount of the stool that should be submitted will depend on the_____ that will be performed
techniques
For routine stool examination (____grams) of formed stools (usually____)
20-30 g/ half of the thumb
______ tbsp of watery stool specimens.
2-3 tablespoons
