Es uno de los elementos mas abundante de la naturaleza es el unico capaz de formar largas cadenas de atomos de gran estabilidad y presenta en diversas formas en los seres vivos y el ambiente

The need activity of the nurse is to suction discharges from the trachea. current treatment approaches in the pressing consideration facilities or crisis offices are corticosteroids and nebulized epinephrine; steroids have demonstrated advantageous in extreme, direct, and even gentle croup. in the clear instances of croup, anti-microbials are not endorsed, as the etiology is viral