MDS PREP
What is the purpose of the puncture-proof container in bio-medical waste management?
1) To contain sharps
2) To hold non-infectious waste
3) To store chemicals used for disinfection
4) To transport pathological waste
General Microbiology Answer: 1
The purpose of the puncture-proof container in bio-medical waste management is to contain sharps, preventing injuries and contamination.
What is the primary reservoir for S. typhi?
1) Domestic animals
2) Insects
3) Water and food
4) Human carriers
General Microbiology Answer: 4The primary reservoir for S. typhi is Human carriers: Typhoid fever is primarily a human disease with human carriers serving as the main reservoir for the bacterium. While the bacteria can also be found in water and food, it is typically humans who carry and transmit the infection.
What is the standard diagnostic procedure for Infectious Mononucleosis?
1) ELISA
2) Paul-Bunnel test
3) Latex agglutination
4) Nucleic acid probes
General Microbiology Answer: 2The Paul-Bunnel test is a classic heterophile antibody test used to diagnose infectious mononucleosis, primarily caused by Epstein-Barr virus (EBV). It detects heterophile antibodies that are typically present in patients with this condition. While ELISA and other tests can also be used, the Paul-Bunnel test is historically significant and widely recognized for this diagnosis.
Which of the following is a killed viral vaccine?
1) Sabin vaccine for poliomyelitis
2) Salk vaccine for poliomyelitis
3) MMR vaccine for measles, mumps, rubella
4) Varicella-zoster
General Microbiology Answer: 2
The Salk vaccine for poliomyelitis is a killed viral vaccine, effectively preventing the disease by using inactivated poliovirus.
Which of the following statements is true regarding the hemolysis of Bacillus anthracis?
1) Strong hemolysis is observed
2) Hemolysis is absent or weak
3) Complete hemolysis is typical
4) Variable hemolysis depending on the strain
Hemolysis of Bacillus anthracis is typically absent or weak, depending on the strain.
Which of the following is a method for indirect diagnosis of tuberculosis?
1) Culture methods
2) Smear examination
3) Polymerase chain reaction
4) Latex agglutination
General Microbiology Answer: 4The polymerase chain reaction (PCR) is a molecular technique used to amplify DNA sequences. In the context of tuberculosis, PCR can be used to detect the presence of Mycobacterium tuberculosis DNA in clinical samples, making it a valuable tool for indirect diagnosis.
Which of the following is true about the fermentation characteristics of Bacillus anthracis?
1) Ferments salicin
2) Produces H2S abundantly
3) Ferments glucose, maltose, lactose, and sucrose
4) All of the above
Bacillus anthracis ferments glucose, maltose, lactose, and sucrose, but does not ferment salicin or produce H2S abundantly.
What is the typical finding of eosinophils in amoebic dysentery?
1) Abundant
2) Few
3) Absent
4) Numerous
General Microbiology Answer: 3Amoebic dysentery is not typically associated with a significant eosinophilic response. Eosinophils are a type of white blood cell that is often involved in allergic reactions and parasitic infections, but their presence is usually minimal in the context of amoebic infections. The inflammatory response in amoebic dysentery is mainly composed of neutrophils and macrophages.