Medical Examinations May Be Required. Each employee may be required, as a condition of continued employment, to undergo such medical examination(s) as the BOARD may require which may include obtaining body tissue or fluid samples and analysis of same, and to execute any and all releases or consents required by any entity or person performing such medical examination(s). All such medical examinations shall be performed by a medical facility selected by the BOARD and shall be at the expense of the BOARD. In the event of a negative test result, the employee will return to work with nothing being placed in his/her personnel file about the test.