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.
The average salary of a certified nursing assistant is $24,010 per year. The top 10 percent of the population earns as much as $34,580, while the lower bracket takes in $17,790 every year. What to Expect. The demand for CNAs is expected to rise together with the population of the elderly.