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.
Who needs to apply for Medicare? You may not need to sign up for Original Medicare, Part A and Part B, but you may have options about the type of Medicare coverage you receive. To be eligible for Medicare, you must be either a U.S. citizen or a legal permanent resident of at least five continuous years. Generally, if you're receiving Social Security or Railroad Retirement Board (RRB) benefits, you'll be automatically enrolled in Medicare when you turn 65.