A person with O-negative blood group is a universal donor as O-negative blood can be transfused to any blood group. Blood group is determined by the presence of antigen(s) on the membrane of red blood cells.
Certified nursing assistant salary in the USA. The average salary for a certified nursing assistant in the US, according to PayScale, is $17,735 to $31,314 per year. Their hourly rate is $8.47 to $14.32 per hour.ccording to the BLS, certified nursing assistant earns around $10 to $12 per hour, or around $20,000 to $24,000 per year. The top paid certified nursing assistant receives salary of $30,000 per year, or $24.99 per hour.
According to the Occupational Outlook Handbook website administered by the Bureau of Labor Statistics of the US Dept of Labor, the 2012 median salary for a nursing assistant or orderly was $24,4400 per year. I know in my area (northwest Ohio / southeastern Michigan) stna's make between $9-11/ hour.