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A med tech or a medical technologist is a health worker who assists the physician or major health provider in the collection and testing of samples from patients. The job description of a med tech is quite broad: it may range from sample collection to helping nurse patients to diagnostic tests and even research. Med techs earn an annual salary of between $30000 to over $50000 US Dollars depending on the job description. It takes between four to five years to get a med-tech degree depending on your region.