Insurance and health-related absences provide two more reasons for implementing pre employment testing. Studies link short- and long-term health problems with drug abuse. Drug abusers are more likely to develop respiratory problems, and are generally more susceptible to many illnesses. Employers often view drug abusers as irresponsible, as well, and many absences can be attributed to the after-effects of drug consumption. Employee absences cost employers millions of dollars every year, and many human resource experts suggest that pre employment testing can reduce these costs. Some groups argue, however, that pre employment testing is not an accurate way to detect the use of drugs while at work.

It is often a difficult call for an employer to make, but most simply make their decisions based on caution. They often view it as the best way to avoid hiring someone who occasionally uses drugs, rather than taking the risk of the person using them before or during working hours. Companies lose an average of $7,000 per drug-using employee annually, according to the Small Business Administration. In any given year, it is estimated that nearly 50 million American workers are required to undergo drug screening. Advances in medical testing have made it quick, easy and relatively inexpensive for employers to use this type of pre employment testing. Many employers view this is as a simple and effective means of ensuring the well being of both their company and their customers.