SMART Flashcards
(1013 cards)
Double embedding:
Infiltrated with ________ then embedded with ______.
Celloidin; Paraffin
Flotation waterbath temp:
45 to 50 C
To remove formalin pigments:
Picric acid
To remove mercurial deposits:
Iodine
Explosive when dry:
Picric acid
Function of alum in hematoxylin:
Mordant
Primary importance of Frozen Sections:
RAPID DIAGNOSIS
Enzyme histochemistry:
Frozen section
Second best choice for routine cytologic examination after Papanicolau:
Phase contrast microscopy
NOT SUITABLE fixative for kidney structures:
Bouin’s
Cell death due to ischemia (loss of blood supply) is known as infarction, and is manifested by characteristic histologic appearance:
COAGULATION NECROSIS
bacteria responsible of Pseudomembranous colitis and diarrhea:
Clostridium difficile
Most frequently recovered Corynebacterium species from human clinical material. It is part of the normal skin microbiota:
Corynebacterium amycolatum
Primary fungal pathogen in HIV patients:
Candida albicans
parasite with double-walled, wrinkled cyst form:
Acanthamoeba castellanii
Intracellular form of blood and tissue flagellates:
Leishmanial form
Normal stool pH:
pH 7 to 8
Stool pH associated with CHO disorders:
pH 5.5 or less
Microhematocrit centrifugate for:
10,000 g for 5 minutes
Standing plasma test determine:
creamy layer (chylomicrons); turbid (VLDL)
Microanatomical fixatives should never contain ________ because it inhibits hematoxylin.
osmic acid/osmium tetroxide
Nuclear fixatives should contain ________ due to its affinity for nuclear chromatin.
glacial acetic acid
These fixatives should never contain Glacial Acetic Acid because it destroys the mitochondria and Golgi bodies:
Cytoplasmic fixatives (Flemming’s without HAc, Regaud’s, Orth’s, Helly’s and formalin with post-chroming)
Manual paraffin wax infiltration and embedding:
At least four (4) changes of wax are required at 15 minutes interval to ensure complete removal of the clearing agent from tissue. The specimen is then immersed in another fresh solution of melted paraffin for approximately 3 hours to ensure complete embedding or casting of tissue.