NEET MDS Shorts
39312
MicrobiologyThe bacterial population in the gingival sulcus or the pocket that influences the course of periodontal disease has essentially the same organisms found in the healthy sulcus
98570
MicrobiologyThe most efficient method of sterilization in dental practice is moist heat at 121°C for 20 min
69981
Microbiologychemical disinfection is cold strelization
16671
MicrobiologyTwo important factors for initiation of caries by oral streptococci are production of glucosyl transferase and synthesis of insoluble dextran
85611
MicrobiologyThe first recognized case in an epidemic outbreak is termed as the index case. Although both the index case and primary case appear to be the same yet they differ slightly. The term primary case refers to the person who first brings a disease into a group of people.
86863
MicrobiologySoaps typically have the narrowest effective antimicrobial range among the listed compounds. They are primarily effective against certain bacteria and viruses but may not be as potent against a broader spectrum of pathogens compared to glutaraldehyde or alcohols like 70% isopropanol.
38050
Microbiology
The main tool for the detection of "cases" of tuberculosis is 1.
Sputum examination. Sputum examination: This is the primary method for
diagnosing active pulmonary tuberculosis. Sputum samples are collected and
examined for the presence of Mycobacterium tuberculosis through
microscopy (e.g., acid-fast bacilli staining) and culture methods. It is
considered the gold standard for confirming active TB cases. Mantoux test: Also known as the tuberculin skin test,
this test is used to determine if a person has been exposed to the
tuberculosis bacteria. However, it does not diagnose active TB; rather, it
indicates whether a person has been infected with the bacteria at some
point. Chest X-ray: While chest X-rays are important for
identifying lung abnormalities associated with tuberculosis and can support
the diagnosis, they are not definitive for detecting the bacteria itself.
They are often used in conjunction with sputum examination.Explanation of Each Option:
96669
Microbiology
Incubation period: This term is typically used for
infectious diseases and refers to the time between exposure to the
infectious agent and the onset of symptoms. Serial interval: This refers to the time between
successive cases in a chain of transmission, specifically in infectious
diseases. Latent period: This is the time from the initiation of
the disease process (or exposure to a risk factor) until the disease is
detectable or until symptoms appear. In non-infectious diseases, this period
can be significant, as the disease may be developing without any noticeable
symptoms. Lag time: This term can refer to various delays in
processes but is not specifically defined in the context of disease
initiation and detection.
65193
MicrobiologyThe minimum and maximum temperature for normal metabolic activity microorganisms that live on or within the human body is 20° C to 45°C
70112
MicrobiologyColonies of E. coli serotype O157:H7 appear on Mac Conkey Sorbitol Agar as colourless colonies non-sorbitol fermenter. Others E. coli, sorbitol fermenters, give red colonies and gram-negative non-sorbitol fermenters appear translucent.