What safety checks should be performed before starting a centrifuge run?

• A. Balance Rotor With Equal Weight; Check For Cracks; Ensure Caps Are Tight; Verify Rotor Lid And Speed Setting; Ensure Tubes Are Appropriate And Not Damaged.
• B. Start Immediately Without Checks.
• C. Only Verify The Speed Setting.
• D. Place Heavy Objects Near The Rotor.

Answer: (A)

Before starting a centrifuge run, the focus is on safe operation: everything must be balanced, intact, and properly configured. Equal-weight loading is essential because balanced tubes prevent dangerous vibrations that can damage the rotor or chamber and could injure someone nearby. Checking for cracks in the rotor and tubes helps prevent catastrophic failure when the device reaches high speeds. Caps must be tightened to prevent leaks or aerosols during acceleration and deceleration. Verifying that the rotor lid is fully closed and locked and that the speed setting matches the rotor and tube specifications avoids over-speed and rotor damage. Ensuring the tubes are appropriate for the rotor and free of damage or improper fill ensures containment and mechanical stability under centrifugal force. Skipping these checks or focusing on only one aspect (like speed) or leaving hazardous items nearby would create unsafe conditions. Following these steps protects people, equipment, and the integrity of the results.