This is so called because the bed constructed in this type of foundation is called grillage. This type of construction avoids deep excavation and provides the necessary area at the base of the structure to reduce the intensity of pressure within the safe bearing capacity of the soil.
The U.S. federal government requires a minimum of 75 hours of state-approved training for nursing assistants who work in nursing care facilities, according to the BLS. They also must pass a written competency evaluation, after which, successful candidates are awarded certification and become CNAs.
Medical schools look for proof of your exposure to medical settings and commitment to serving others. Find a part-time or summer job, at a health care facility. The more experience you gain, the better equipped you will be for medical school. Once you are 16 (age varies by state), you might want to complete training during the summer to be a Certified Nurse Assistant (CNA). Training takes anywhere from three weeks to three months.