A roofer shouldn't charge by the hour he should charge by the square. In a square their is 100 sq.ft and they usually charge $300 per square. roofer shouldn't charge by the hour he should charge by the square. In a square their is 100 sq.ft and they usually charge $300 per square.
In the United States, the certified nursing assistant (CNA) typically works in a nursing home or hospital, and performs everyday living tasks for the elderly, chronically sick, or rehabilitation patients who cannot care for themselves.
CNA stands for Certified Nursing Assistant, while PCA is an abbreviation for Patient Care Assistant. Both the terms are used interchangeably, but there are huge differences in both the careers. Students and aspirants who wish to take up a career in nursing must understand these differences. The choice of employing a CNA or PCA depends upon the patientâs medical needs. CNAs are also known as nursing aides while PCAs are also termed as PCTs (Patient Care Technicians).