A comprehensive approach to managing laboratory instruments includes classification, qualification, calibration, and _______. Response:

Question

Options

• Adisposal
• Bpreventive maintenance
• Cneglect
• Drandom checks

• A
  5% (1)
• B
  80% (16)
• C
  5% (1)
• D
  10% (2)

Explanation

Preventive maintenance (B) is the correct answer because a complete instrument management program follows four pillars: classification (categorizing instruments by type and criticality), qualification (verifying instruments perform as intended), calibration (ensuring measurements are accurate and traceable), and preventive maintenance (scheduled upkeep to prevent failures before they occur). These four elements together form a lifecycle approach to instrument reliability and compliance.

Disposal (A) is wrong because, while instrument disposal is a real activity, it is not considered a core pillar of the comprehensive management framework - it's an end-of-life step, not a recurring management practice. Neglect (C) is the opposite of good laboratory practice and is never a component of any quality system. Random checks (D) are too informal and unstructured to qualify as a systematic management approach; proper programs rely on scheduled, documented activities.

Memory tip: Think of the four pillars as a lifecycle acronym - C-Q-C-PM (Can Quality Control Pass Muster?) - Classification, Qualification, Calibration, Preventive Maintenance. PM (preventive maintenance) always closes the loop.

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