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.
Employers request drug tests for specific reasons. Usually, tests are done on a urine sample given by the employee. First, drug testing may be done as pre-employment screening. The purpose is to screen potential employees for the presence of illegal drugs.Testing can be requested as a condition of being considered for employment. Second, testing may be done for cause.sually, tests are done on a urine sample given by the employee. First, drug testing may be done as pre-employment screening. The purpose is to screen potential employees for the presence of illegal drugs. Testing can be requested as a condition of being considered for employment. Second, testing may be done for cause.