Quality Control in Diagnostic Microbiology Practice Questions

Question 1

What is the best way to control the MRSA infection in the ward?

Accepted Answer

Washing hand before and after attending patients

Answer

Fumigation of ward frequently

Answer

Wearing masks during invasive procedures in ICU

Answer

Vancomycin given empirically to all the patients

Question 2

In a village health survey, which indicator best reflects the quality of antenatal care services?

Accepted Answer

Proportion of early ANC registrations

Answer

Number of ANC registrations

Answer

Number of high-risk pregnancies identified

Answer

Percentage of institutional deliveries

Question 3

Disputed maternity can be solved by using the following tests, EXCEPT:

Accepted Answer

Precipitin test

Answer

Blood grouping

Answer

HLA typing

Answer

DNA fingerprinting

Question 4

Which is false regarding Spaulding's criteria?

Accepted Answer

Semi critical items need low level disinfection

Answer

Non critical items require only decontamination

Answer

Cardiac catheters are examples of critical items

Answer

Semi critical items are those which come in contact with mucous membrane or non intact skin

Question 5

Antibiotic sensitivity and resistance of microorganisms are determined by

Accepted Answer

Culture

Answer

DNA probe

Answer

Direct microscopy

Answer

ELISA

Question 6

Which of the following statements accurately describes the relationship between quality assurance (QA), quality control (QC), internal quality assurance (IQA), and external quality assurance (EQA)?

Accepted Answer

Quality Assurance (QA) includes Quality Control (QC), Internal Quality Assurance (IQA), and External Quality Assurance (EQA).

Answer

Quality Control (QC) is a process that supports Quality Assurance (QA).

Answer

Quality Control (QC) and Quality Assurance (QA) are distinct but interrelated processes.

Answer

Quality Assurance (QA) focuses solely on compliance and excludes Quality Control (QC).

Question 7

Under National Vector Borne Diseases Control Programme, operational efficiency of antimalarial measures is assessed by:

Accepted Answer

Annual Parasite Incidence

Answer

Infant parasite rate

Answer

Slide positivity rate

Answer

Annual Blood Examination Rate

Question 8

A man presented with bilateral non-inflammatory edema after consuming a particular oil. Which test should be performed by the drug inspector to check for the adulterant?

Accepted Answer

Nitric acid test

Answer

Paper chromatography test

Answer

Methylene Blue Reduction Test

Answer

Baudouin test

Question 9

What are the reasons a sample may be disqualified for culture?

Accepted Answer

Sample brought in formalin

Answer

Sample brought within 2 hr of collection

Answer

Sample brought in sterile plastic container

Answer

Sample obtained after cleaning the collection site

Question 10

Which of the following is a xenodiagnostic method?

Accepted Answer

Injecting Aedes thorax with blood of a suspected dengue patient

Answer

Intradermal test on guinea pigs for toxigenicity of Corynebacterium diphtheriae

Answer

Injecting a hamster with splenic biopsy for diagnosis of leishmaniasis

Answer

Rabbit ileal loop for enterotoxigenic Escherichia coli

Quality Control in Diagnostic Microbiology — MCQs

Quality Control in Diagnostic Microbiology — MCQs

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