Chocolate agar (CHOC) or chocolate blood agar (CBA)
Chocolate agar is a non-selective, enriched growth medium.
It is a variant of the blood agar plate, containing red blood cells that have been lysed by slowly heating to 80 °C.
Chocolate ...
Blastocystis hominis cyst-like forms in wet mounts
Blastocystis hominis appear as spherical to oval cyst-like structures. They vary widely in size (5 to 30 µm; usual range 8 to 10 µm), and typically consist of a central body, or ...
The criteria of a good blood film
Free from holes caused by grease or dirt on the slide.
Not wavy film due to jerky movement during spreading.
Free from clear streaks resulted from chipped edge of the spreader ...
Using KOH Test as Gram stain confirmation
the KOH test is a confirmation test of the Gram stain, especially with difficult bacterial species.
The Gram stain is the basis for identification & classification in ...
difference between Plasma and Serum
Plasma is the supernatant obtained after centrifugation of blood collected into a test tube containing anticoagulant to prevent clotting
Several anticoagulants are used in laboratory ...
E. coli and a non-lactose fermentation
MacConkey agar inoculated with lactose-fermenting Escherichia coli (at left) and non-lactose-fermenting Proteus (at right). Lactose-fermenting bacteria appear bright pink, while non-lactose-fermenting ...
Neisseria meningitidis
Neisseria meningitidis often referred to as meningococcus, Capsulated Gram-negative diplococcus
aerobic
Non motile
nonspore forming
catalase positive
oxidase positive
Acid production ...
Fasciola hepatica egg
Eggs of Fasciola hepatica are broadly ellipsoidal, operculated and measure 130-150 µm long by 60-90 µm wide. The eggs are unembryonated when passed in feces.
The eggs of F. hepatica ...
