Diagnostic Examinations Flashcards
Diagnostic Examinations
● MACROSCOPIC
● MICROSCOPIC
MACROSCOPIC EXAMINATION
Odor
Color
Form/ consistency
Light to dark brown
Urobilin
Bile pigment which gives the stool its normal brown color
Urobilin
Yellow
milk
fats
cornmeal
unchanged bilirubin
Green
spinach
unchanged biliverdin (oral antibiotics)
Clay or putty
obstructive jaundice(abs. of urobilin)
excess fat in pancreatic disease
barium-X-ray exam
Bright red
Bleeding in the lower GIT
tomatoes
Black or tarry
iron supplements, charcoal, digested blood, bleeding in the Upper GIT (ulcers)
Gray
mushy and foul smelling seen in Steatorrhea (malabsorption syndrome)
Cholera
Orange
Tuberculosis drug
OFFENSIVE
INDOLE AND SKATOL
Extremely foul putrefactions
due to undigested protein. Ulcerated and malignant tumors of the lower GIT and in hemorrhages
Sour or rancid
indicates gas formation, fermentation of carbohydrates, unabsorbed fats due to indigestion- highly acidic feces
Normal consistency
Soft and formed
Excessively hard
scybalous stool
constipation
Carcinoma
Gaseous
Fermentative
mushy with bubble of gas, bulky and frothysteatorrhea (malabsorption), lactose intolerance
Flattened or ribbon like
spastic colitis or obstruction in the lower GIT
Mucus
translucent and gelatinous clinging to the surface of stool
Colitis, carcinoma, dysentery(bloody)
Consistency and color of stool with amoeba
Mucoid and greenish
There are 2 points raised in relation to any microscopic examination, namely:
○ Proficiency of the microscopist
○ Quality of the microscope
RBC -
dysentery, hemorrhages, bleeding in the upper or lower GIT
WBC
pus cells (poly or mono)
PARASITES -
trophozoites/cyst, ova, worms
ARTIFACTS -
pseudo parasites- seeds, fungi, hairs, various fibers, vegetable cells, pollen
RBC can be mistaken as
Blastocystis hominis
Cyst
WBC can be mistaken as
Entamoeba histolytica
Non motile trichomonas vaginalis