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Disease Diagnosis: Specimen Collection Process

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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?

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

Which method is recommended for obtaining serum for serological tests?

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

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

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

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

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

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

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

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

To stimulate the production of bacteriocins (C) Signup and view all the answers

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

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

Which of the following statements about bacterial identification is incorrect?

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

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

Requires a low pH environment (A) Signup and view all the answers