Diagnosis of Infection - Importance of Correct Specimen Labelling and Packaging

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Questions and Answers

What is the importance of correct specimen labelling and packaging by clinicians?

  • Increasing infection risks to staff
  • Decreasing specificity of laboratory results
  • Providing incorrect clinical information
  • Avoiding errors and reducing infection risks to staff (correct)

Which of the following is NOT a common microbiology specimen mentioned in the text?

  • MSU (correct)
  • Swabs
  • Urine
  • Blood

What are examples of non-routine samples mentioned in the text?

  • Urine and blood
  • Blood and urine
  • Swabs and urine
  • Bronchoalveolar lavage (BAL) and cerebrospinal fluid (CSF) (correct)

How can clinicians discern between rapid initial tests and culture-based tests?

<p>By the specificity of the results (C)</p> Signup and view all the answers

What is the general principle emphasized regarding specimen requests?

<p>Garbage in garbage out – must label and send appropriate specimen (A)</p> Signup and view all the answers

What are some modern advances in laboratory diagnosis mentioned in the text?

<p>Molecular diagnosis and MALDI-TOF (B)</p> Signup and view all the answers

Which phase of laboratory testing involves specimen acquisition, identification, handling, and transport?

<p>Pre-analytical (D)</p> Signup and view all the answers

Which special consideration is highlighted for microbiology specimens in the text?

<p>Notorious pathogens from specific regions can infect laboratory workers (D)</p> Signup and view all the answers

What is a key activity that can be performed on unfixed microbiology specimens?

<p>Fluorescence microscopy (A)</p> Signup and view all the answers

Which travel destination is linked to Salmonella enterica Serovar Typhi according to the text?

<p>India, Pakistan, Nepal (A)</p> Signup and view all the answers

What type of microscopy is historically used for diagnosing viruses?

<p>Electron microscopy (A)</p> Signup and view all the answers

Which phase of laboratory testing requires solid agar media and broth for culture?

<p>Analytical (C)</p> Signup and view all the answers

What type of medium does Inactivating Viral Transport Medium contain?

<p>Guanidine thiocyanate (A)</p> Signup and view all the answers

Which specimen is NOT commonly collected in Molecular Transport Media or Inactivating Viral Transport Medium?

<p>Urine (C)</p> Signup and view all the answers

What does the brownish-red color indicator likely suggest in the context provided?

<p>Presence of BSA (C)</p> Signup and view all the answers

What is the main function of the molecular transport media used for SARS-CoV-2 samples?

<p>Preserving nucleic acid (B)</p> Signup and view all the answers

Which type of sample is noted to be better than a swab for anaerobes?

<p>Pus (C)</p> Signup and view all the answers

What is present in the viral transport medium to maintain virus viability?

<p>Bovine serum (A)</p> Signup and view all the answers

What is the commonest specimen type in Microbiology for diagnosing urinary tract infections?

<p>Mid stream urine (MSU) (D)</p> Signup and view all the answers

In which type of urine sample would treatment not always be required due to infection?

<p>Catheter specimen urine (CSU) (A)</p> Signup and view all the answers

What is required for diagnosing pneumonia using respiratory tract specimens?

<p>Gram stain and culture (C)</p> Signup and view all the answers

Which method is used for replacing Urine Microscopy in Urine Flow Cytometry?

<p>Laser scattering and fluorescence counting (B)</p> Signup and view all the answers

What is the purpose of adding boric acid to urine samples in Flow Cytometry?

<p>To prevent cell integrity loss (A)</p> Signup and view all the answers

In MALDI-TOF bacterial identification, what is the technique based on?

<p>DNA analysis (C)</p> Signup and view all the answers

Which of the following is NOT a diagnostic modality for infecting pathogens as mentioned in the text?

<p>Incubation (D)</p> Signup and view all the answers

What is the key component required to have a pure culture of blood culture bottle contents?

<p>Solid culture media (A)</p> Signup and view all the answers

Which method is used to identify specific pathogens in blood culture broth as per the information provided?

<p>Biochemical profile (API) (C)</p> Signup and view all the answers

What is indicated by the production of carbon dioxide turning the sensor yellow in the context of blood culture technology?

<p>Positive bacterial growth (D)</p> Signup and view all the answers

Which statement about laboratory reports on blood cultures is TRUE based on the information provided?

<p>'Skin organisms grown' are typically non-pathogenic (A)</p> Signup and view all the answers

Which technique is NOT mentioned as part of the diagnostic modalities for infecting pathogens in the information provided?

<p>Inoculating loop (A)</p> Signup and view all the answers

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