It's not a prefix in the context in which you're using it. It's merely spelling a word incorrectly based on how some people say it. It has zero semantic value. It is completely unrelated to the prefix a which just means without.
For example the median expected annual pay for a typical Medical Records Technician in the United States is $32,140 so 50% of the people who perform the job of Medical Records Technician in the United States are expected to make less than $32,140.
The median expected salary for a medical technician in the United States is about $46,680 per year and an average hourly wage is about $22.44 per hour.he full-time yearly salary for a medical technician in the Canada ranges from between $40,000 CAD- $45,000 CAD and an average hourly wage is about $ 22.19 CAD per hour.