Avogadro constant. In chemistry and physics, the Avogadro constant (named after the scientist Amedeo Avogadro) is the number of constituent particles, usually atoms or molecules, that are contained in the amount of substance given by one mole. Thus, it is the proportionality factor that relates the molar mass of a compound to the mass of a sample.
Medical assistants held about 591,300 jobs in 2014. Most of these assistants work in physiciansâ offices, hospitals, outpatient clinics, and other healthcare facilities.
A medical assistant is an unlicensed health-care worker who provides clerical and clinical support in a clinic or physicianâs office. Some medical assistants practice only in the front office, performing tasks such as patient registration, making appointments or doing filing and billing. Others perform clinical tasks, such as taking a patientâs blood pressure or weight. Some MAs fill both roles.