Creatinine levels relate to both muscle mass and to kidney function. As you age, your muscle mass decreases but your kidneys tend to function less effectively. The net result is not much change in creatinine levels in the blood as you get older.
As a result, California employers are required by law to have workers' compensation insurance, even if they have only one employee. And, if your employees get hurt or sick because of work, you are required to pay for workers' compensation benefits.
If disability is anticipated at the time of injury, the employee may elect to use leave or COP (which is discussed in Chapter 5) on Form CA-1. An employee who cannot return to work when COP terminates, or who is not entitled to receive COP, may claim compensation for wage loss on Form CA-7.