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BMS171: Laboratory Diagnosis of Infectious Diseases Lecture Quiz

10 Questions

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BMS171: Laboratory Diagnosis of Infectious Diseases Lecture Quiz

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Questions and Answers

Which type of microscope is primarily used to visualize bacteria?

Fluorescent microscope

Electron microscope

Dark-ground microscope

Light microscope (correct)

Which method involves the detection of antibodies in serum for the diagnosis of bacterial infections?

IgM rising titre of IgG (correct)

Microscopic examination

Isolation on culture media

Culture technique

What is the primary purpose of using a Gram stain on a bacterial sample?

To detect the size and shape of bacteria

To visualize viruses

To detect bacterial motility

To differentiate between Gram-positive and Gram-negative bacteria (correct)

What technique is NOT considered a direct method for the diagnosis of infectious diseases?

Antibiotic sensitivity test Signup and view all the answers

Which of the following is a non-culture technique for the detection of microorganisms?

Antigen detection and nucleic acid detection (e.g., PCR) Signup and view all the answers

Which type of culture medium is used to isolate and identify specific types of bacteria?

Broth Signup and view all the answers

For the diagnosis of bacterial infections, which method employs molecular techniques like PCR and nucleic acid detection?

Molecular methods Signup and view all the answers

What is the primary purpose of the QuantiFERON-TB test in the diagnosis of infections?

Serological method Signup and view all the answers

What is the primary function of biochemical reactions in the identification of bacteria?

To determine the presence of specific enzymes produced by bacteria Signup and view all the answers

Among the following, which process is typically performed prior to further processing of specimens in the laboratory?

Microscopic Examination Signup and view all the answers