The site of injection is usually rotated when injections are frequently given. The maximum amount of medication that can be subcutaneously injected is about 2 ml. Needles are generally 3/8 to 1 inch in length and 24 to 27 gauge.
Salary Outlook. According to the BLS, mechanical engineers earned a median salary of $82,100 in 2013. The best-paid earned about $123,340, while the lowest-paid earned less than $52,550. Industries that pay well include oil and gas extraction as well as information services.est Paying Cities for Mechanical Engineers. The highest paid in the mechanical engineer profession work in the metropolitan areas of District of Columbia, San Jose, California, and Taunton, Massachusetts.
According to May 2015 records from the Bureau of Labor Statistics, the mean annual mechanical engineer salary is $83,590. In other words, the 277,500 mechanical engineers in the United States earn a mean hourly wage of $42.40. The bottom ten percent professionals earn an annual salary of $ $53,640, while the top ten percent brings home a six-figure average salary of $128,430 each year.