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Pathology VETT117

week 2 notes

QuestionAnswer
What is the best technique to obtain a sample from a lymph node? Fine needle aspirate
Which stage of estrus is characterized by a high number of erythrocytes, basal, and parabasal epithelial cells? Proestrus
Which term refers to a nucleus that appears small, condensed, and dark? Pyknotic
Paracentesis is the collection of fluid samples from which location? Abdomen
What is the most commonly used fixative for tissue samples collected for histopathologic examination? Formalin
What is the preferred fixative for most cytology specimens? Methanol
Which type of stain would be best to use for evaluation of sperm morphology? Wright's stain
What size needle and syringe should be used to perform a fine needle aspiration of a soft mass? 21 to 25 gauge needle with 10 mL syringe
What organism listed below is a potential cause of chronic skin lesions and ear infections that can also be seen in swabs taken from normal animals? Malassezia
Which term describes fluid that appears milky and results from the presence of emulsified fats? Chylous
Which cell type is predominant during estrus? Cornified squamous epithelial cells
What term describes round cells that are usually slightly larger than lymphoblasts and have distinctive purple-staining granules? Mast cells
Which stain works best for staining the cytoplasm of the cells? Romanowsky stain
In addition to plain sterile tubes, fluid samples are generally aliquoted into a tube that contains what type of anticoagulant? EDTA
Cystocentesis refers to the collection of fluid samples from which location? Urinary bladder
When are Swabs generally collected? When imprints, scrapings, and aspirates cannot be made.
What fluid should be used to moisten the swab? saline
What are smears from scrapings prepared from? tissues that are collected during necropsy or surgery or from external lesions on the living animal..
Imprints may be prepared from? tissues that are collected during necropsy or surgery or from external lesions on the living animal..
Fine needle aspirates may be collected from? Masses, including lymph nodes, nodular lesions, and internal organs.
Which type of smear allows for three different areas of cell distribution for analysis? Modified compression smear, Which stain provides excellent nuclear and nucleolar detail?
Which cell has prominent dark-black granules? Melanoma
Which term describes a sample that contains more than 15% macrophages? Granulomatous
What type of tumor is usually highly cellular and that normally exfoliates in clusters? Epithelial cell carcinoma
What term describes round cells that are usually slightly larger than lymphoblasts and have distinctive purple-staining granules ? Mast cells How should cytology samples be submitted to a reference lab for analysis? (Click all that apply)
What is the preferred fixative for most cytology specimens? Methanol
Which stain works best for staining the cytoplasm of the cells? Romanowsky stain
Other than a gram stain preparation, which sample should be gently treated with heat prior to staining? Ear
What is the most commonly used fixative for tissue samples collected for histopathologic examination? Formalin
Paracentesis is the collection of fluid samples from which location? Abdomen
Which term refers to a nucleus that appears small, condensed, and dark? Pyknotic
What is most often used to moisten swabs in order to minimize cell damage when collecting swab samples? Saline
What is the preferred method of sample preparation for a highly viscous sample? Starfish smear
Created by: Tuffenuff
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