12 Questions
What is the first step in the diagnosis of a disease?
Selecting the appropriate specimen based on the pathogenesis of the infection.
How should urine specimens be collected to avoid contamination?
By collecting a mid-stream specimen with precautions.
What is the recommended method for collecting sputum specimens?
Collecting a morning specimen in a wide-mouthed container.
How should blood culture specimens be handled for laboratory testing?
Aseptically collecting blood and culturing it in screw-capped bottles.
What should be added to serous fluids to prevent clotting during collection?
Citrate
In what form should blood be obtained when needed for serological tests?
Allowed to clot or centrifuged to obtain serum.
What is a common method used for diagnosing a bacterial infection by detecting the causal organism microscopically in a stained smear?
Direct demonstration
How is the identification of bacteria isolated by culture NOT typically determined?
Colonial and microscopic morphology
Which of the following methods is NOT used for bacterial typing within a species according to the text?
Recognition of enzymes
What is the basis of identification for some bacteria, with a specific example mentioned in the text?
Recognition of enzymes
What is one method used for bacterial typing by comparing the plasmids contained by different bacterial strains?
Plasmid typing
Which test is of great value in detecting antibodies specific for the causal organism in patients with infections where the organism is difficult to culture?
Serologic testing
This quiz covers the important steps in the diagnosis of a disease, focusing on the specimen collection procedure. Topics include choosing the appropriate specimen, obtaining it properly, transporting it to the laboratory, and providing essential information to the lab personnel.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
