2, 4-7 Although deep intramuscular injection into a large muscle is the preferred parenteral route of administration, promethazineâs product labeling states that it may be given by slow IV push, which is the typical method of administration in most hospitals.
Quick Answer. Plants produce oxygen as a byproduct of photosynthesis, the process that plants and other organisms use to create usable energy. Photosynthesis consists of carbon dioxide and water reacting in the presence of energy from sunlight, which produces glucose and oxygen.
As of June 2014, it is unknown which particular species of tree produces the most oxygen. A variety of factors contribute to the amount of oxygen a tree can produce, such as the age, health and surrounding area of a tree. Continue Reading. It is known that mature, leafy trees, such as redwoods, aspens and oaks, are the best producers of oxygen.