Hand Arm Vibration Syndrome Testing

Occupational health HAVS (Hand-Arm Vibration Syndrome) tests are medical assessments conducted on workers who use hand-held vibrating tools and machinery in their work. These tests are designed to identify workers who are at risk of developing HAVS, a condition that can result from prolonged exposure to hand-held vibrating tools and machinery.

HAVS is a condition that affects the blood vessels, nerves, and muscles of the hand and arm, and can cause symptoms such as tingling, numbness, and pain in the fingers, hands, and arms. The condition can also lead to reduced grip strength, which can make it difficult for workers to perform tasks that require fine motor skills.


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The HAVS tests typically involve a questionnaire to gather information about the worker’s work history and exposure to vibrating tools and machinery, as well as physical assessments such as grip strength tests, sensory tests, and nerve conduction studies.

The results of these tests are used to identify workers who are at risk of developing HAVS and to monitor the condition of workers who have already developed the condition.

Employers are required by law to ensure that their workers are not exposed to excessive levels of vibration and to provide appropriate training and equipment to reduce the risk of HAVS.

The HAVS tests are an important tool for employers to identify workers who are at risk of developing HAVS and to take appropriate measures to prevent the condition from occurring.

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HAVS Testing FAQ's

What is HAVS?

Hand-Arm Vibration Syndrome (HAVS) is a condition that can occur in individuals who use vibrating tools or machinery. It can lead to permanent damage to the nerves, blood vessels, and joints in the hand and arm.


How is HAVS testing performed?

HAVS testing involves a range of assessments, including a medical history review, physical examination, and a series of tests to evaluate nerve function and circulation in the hands and arms. The tests may include a vibration exposure measurement, grip strength measurement, and sensory tests.

Who needs HAVS testing?

Employees who work with vibrating tools or machinery, such as construction workers, mechanics, and factory workers, are at risk of developing HAVS. Employers are required to provide HAVS testing to their employees if their job requires them to use vibrating tools or machinery.

How often should HAVS testing be performed?

The frequency of HAVS testing depends on the level of exposure to vibrating tools or machinery and the regulations of the employer. In general, employees should have a baseline assessment when they start working with vibrating tools or machinery, and then be retested annually or as required by the employer.