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LABORATORY GUIDELINES

Handling Test Tubes

SAFETY GUIDELINES FOR:

• pipetting
• handling test tubes
• microscope use
• dishwashing
• other lab activities

To Control Awkward Postures:

If seated, assure proper lower back and thigh support from chair and assure feet are supported.
If standing, assure work surface is at proper height to reduce need to reach upward or bend forward. Use a stepstool if necessary. Upside down containers can be used to create higher work surfaces.
Arrange test tube racks to minimize reaching and twisting.
Work with elbows close to sides.
Maintain straight wrist positions. This may require inclining test tube racks.
When possible, use clamp to hold test tubes.

To Control High Repetition:

Automate processes when possible.
Share workload between right and left sides.
Take adequate breaks away from handling activity-even short several second "micro-breaks" help.
Rotate handling among several employees.
Evaluate work processes to reduce steps requiring manual handling.

To Control Vibration:
Use vortex mixer rack - do not hold tube by hand.

To Control Excessive Force:

Automate test tube opening when possible.
Use pinch (thumb working with index finger) only for precision activities that require minimal force.
Use full hand grip for activities that require greater force (not the pinch grip).
Use cap removers that change handling from pinch to full hand grip.
Request samples be received in test tubes that allow improved ergonomics.
Explore other sample mediums (e.g. genetic testing is moving away from testing blood to testing hair).

To Control Contact Stresses:

Use two hands to open test tube samples.
Do not rest forearms on a sharp edge. Pad the edge or forearm, or create a forearm rest.