scholarly journals A Comparison of Dacron versus Flocked Nylon Swabs for Anal Cytology Specimen Collection

2011 ◽  
Vol 55 (4) ◽  
pp. 364-367 ◽  
Author(s):  
Julia C. Gage ◽  
Arpita Ghosh ◽  
Sylvia Borgonovo ◽  
Stephen Follansbee ◽  
Nicolas Wentzensen ◽  
...  
Keyword(s):  
Specimen Collection ◽  
Anal Cytology ◽  
Cytology Specimen

scholarly journals Screening for anal neoplasia: anal cytology - sampling, processing and reporting

Sexual Health ◽  
2012 ◽  
Vol 9 (6) ◽  
pp. 556 ◽  
Author(s):  
Teresa M. Darragh ◽  
Barbara Winkler
Keyword(s):  
Laboratory Evaluation ◽  
Specimen Collection ◽  
Increased Risk ◽  
Anal Neoplasia ◽  
Anal Cytology ◽  
Specimen Processing ◽  
Patient Preparation ◽  
Epithelial Lesions ◽  
Intraepithelial Lesions ◽  
Cytological Sample

Anorectal cytology (ARC) is increasingly accepted as a valid screening tool for the diagnosis of squamous intraepithelial lesions in populations at increased risk for anal cancer. As with cervical cancer screening protocols, proper patient preparation, specimen collection and specimen processing are essential for obtaining an optimal cytological sample. With attention and experience, the clinician can collect the best possible ARC specimen for laboratory evaluation. The incorporation of repeated interval anal cytology into standard surveillance practices for high-risk individuals is a valuable tool for the early detection of human papillomavirus-related anal squamous epithelial lesions and the prevention of anal squamous cell carcinomas.

Specimen Collection Effect in Scanning Electron Microscopy Images

1972 ◽  
Vol 30 ◽  
pp. 448-449
Author(s):  
J. Temple Black ◽  
Jose Guerrero
Keyword(s):  
Surface Morphology ◽  
Secondary Electron Emission ◽  
Secondary Electrons ◽  
Charge Effects ◽  
Material Density ◽  
Specimen Collection ◽  
The Subject ◽  
Curved Paths ◽  
Subject Material ◽  
Microscopy Images

In the SEM, contrast in the image is the result of variations in the volume secondary electron emission and backscatter emission which reaches the detector and serves to intensity modulate the signal for the CRT's. This emission is a function of the accelerating potential, material density, chemistry, crystallography, local charge effects, surface morphology and especially the angle of the incident electron beam with the particular surface site. Aside from the influence of object inclination, the surface morphology is the most important feature In producing contrast. “Specimen collection“ is the name given the shielding of the collector by adjacent parts of the specimen, producing much image contrast. This type of contrast can occur for both secondary and backscatter electrons even though the secondary electrons take curved paths to the detector-collector.Figure 1 demonstrates, in a unique and striking fashion, the specimen collection effect. The subject material here is Armco Iron, 99.85% purity, which was spark machined.

scholarly journals Stability of Novel Plasma Markers Associated with Cardiovascular Disease: Processing within 36 Hours of Specimen Collection

2002 ◽  
Vol 48 (10) ◽  
pp. 1781-1784 ◽  
Author(s):  
Jennifer K Pai ◽  
Gary C Curhan ◽  
Carolyn C Cannuscio ◽  
Nader Rifai ◽  
Paul M Ridker ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Specimen Collection ◽  
Plasma Markers

Collect that Stool! The Impact of Delay in Specimen Collection to NHSN Lab ID C. difficile Events

2019 ◽  
Vol 47 (6) ◽  
pp. S50
Author(s):  
Ashleigh J. Goris ◽  
Kathleen M. McMullen ◽  
Rebecca S. Wade
Keyword(s):  
Specimen Collection ◽  
The Impact
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