Preventive maintenance of laboratory instruments is critical for: Response:

Question

Options

• AReducing the need for calibration
• BExtending the operational life and ensuring reliable results
• CMaking sure the instrument looks new
• DAvoiding use of the instrument for complex tests

• A
  11% (2)
• B
  83% (15)
• C
  6% (1)

Explanation

Preventive maintenance is critical because it keeps instruments functioning accurately over time and minimizes unexpected failures - both of which directly impact the reliability of test results and the instrument's usable lifespan (option B). Option A is wrong because calibration is a separate process from maintenance; PM may actually require periodic calibration rather than reduce it. Option C describes a cosmetic outcome, not a functional or clinical one - appearance is irrelevant to laboratory performance. Option D is the opposite of the goal: well-maintained instruments expand their capability for complex testing, not restrict it.

Memory tip: Think of PM as "Preserve and Maintain" - you're preserving the instrument's life and maintaining reliable results. If an answer sounds cosmetic or counterproductive, it's a distractor.

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