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.
For example the median expected annual pay for a typical Mechanical Engineer I in the United States is $63,483 so 50% of the people who perform the job of Mechanical Engineer I in the United States are expected to make less than $63,483. Source: HR Reported data as of October 2015. Median $63,483. 1  Salary.