Disease Diagnosis: Specimen Collection Process
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Questions and Answers

Which step is crucial in disease diagnosis prior to obtaining the specimen?

  • Providing essential information to lab personnel
  • Transporting the specimen promptly
  • Obtaining the specimen without contamination
  • Choosing the appropriate specimen (correct)

What is the correct method for collecting sputum as a specimen for examination?

  • Collect a morning specimen in a wide-mouthed container (correct)
  • Use a small container
  • Use a narrow-mouthed container
  • Obtain the specimen in the evening

How should serous fluids like pleural or synovial fluids be collected for examination?

  • Collect in non-sterile containers
  • Add alcohol to prevent clotting
  • Use plain containers without labeling
  • Collect in sterile containers with citrate to prevent clotting (correct)

What is the correct process for obtaining a blood culture specimen?

<p>Aseptically collect the blood and culture in two screw-capped bottles (B)</p> Signup and view all the answers

Which method is recommended for obtaining serum for serological tests?

<p>Allow blood to clot or centrifuge to obtain serum (C)</p> Signup and view all the answers

What precaution should be taken when collecting urine as a specimen?

<p>Collect a mid-stream specimen and take precautions to avoid contamination (B)</p> Signup and view all the answers

Which of the following is NOT a method for diagnosing a bacterial infection?

<p>Genetic analysis to identify the presence of pathogenic genes (B)</p> Signup and view all the answers

Which of the following biochemical tests is NOT mentioned for bacterial identification?

<p>Determination of an organism's motility (C)</p> Signup and view all the answers

Which of the following is NOT a reason for using selective media for isolation of causal organisms?

<p>To stimulate the production of bacteriocins (C)</p> Signup and view all the answers

Which of the following is NOT a method for typing bacterial strains within a species?

<p>Genomic typing using differences in bacterial DNA sequences (A)</p> Signup and view all the answers

Which of the following statements about bacterial identification is incorrect?

<p>Bacteria can be identified using antigenic typing, based on differences in flagella structure (B)</p> Signup and view all the answers

Which of the following is NOT a condition required for growth of some bacteria mentioned in the text?

<p>Requires a low pH environment (A)</p> Signup and view all the answers

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