NURSING EXAM QUESTIONS
MICROBIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It takes minutes instead of days for identification of pathogens
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It can detect multiple targets
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It is inexpensive
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It can detect antibiotic resistance
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Detailed explanation-1: -MALDI-TOF MS is rapid and reliable, with the ability to accurately determine the identity of a micro-organism from culture in a matter of minutes rather than the hours or days required by more traditional methods.
Detailed explanation-2: -For organisms commonly encountered in the clinical laboratory, MALDI-TOF MS can accurately identify most closely related species. However, there are some exceptions. The inability to discriminate between related species can be due to the inherent similarity of the organisms themselves.
Detailed explanation-3: -MALDI-TOF MS has various benefits over the conventional method of biochemical identification, including ease of use, speed, accuracy, and low cost. This approach can solve many of the obstacles to identifying bacteria, fungi and vi-ruses.
Detailed explanation-4: -From a clinical laboratory perspective, the key advantage of MALDI-MS is its simplicity. Samples are applied to the MALDI plate, dried, introduced into the mass spectrometer and irradiated with a laser (Fig.