1 The most common symptom of pinworms is an itchy rectal area. Symptoms are worse at night when the female worms are most active and crawl out of the anus to deposit their eggs.  Although pinworm infections can be annoying, they rarely cause serious health problems and are usually not dangerous.
To determine the suitability of an individual for a particular job, some employers may require a pre-employment physical examination. Urine drug tests, hair drug or alcohol testing, saliva drug screen, and sweat drug screen are among a few of the types of drug tests available.
Finding a job these days often requires more than filling out an application and providing a resume and cover letter. More employers are using pre-employment tests to help determine which candidate in a pool of applicants is best qualified to perform a particular job's duties. These tests range from basic drug screenings and skills tests to more advanced--and potentially problematic--tests such as psychological and personality tests.