Different labs and tests...look for different drugs. Also some tests (urine, blood, follicle, etc) can detect drug-use from different times in your past. Basically, negative means you dont have evidence of drug use in your system. Source(s): Lab Tech. just now. Report Abuse. A drug test is a technical analysis of a biological specimen-for example urine, hair, blood, sweat, or oral fluid / saliva-to determine the presence or absence of specified parent drugs or their metabolites.
In addition, you may qualify for Medicare if you meet the eligibility requirements for the SSA disability program and youâre a child or widow(er) 50 years or older of someone who has worked long enough as a government employee through which Medicare taxes were paid.
CMS establishes requirements, called Conditions for Coverage that ASCs must meet in order to be certified. The requirements cover all aspects of an ASC from operational organization to facility design and patient care. It is important to note that the CFCs must be met for all patients and not just Medicare patients.