A hematoma is a larger collection of blood, usually caused by surgery, injury, or a greater trauma. Hematomas will usually reabsorb into the body, like a bruise. However, depending on the size, location and cause of the hematoma, the area may need to be drained surgically, or take a longer period of time to resolve.
Registered nurse. A Registered Nurse (RN) is a nurse who has graduated from a nursing program and met the requirements outlined by a country, state, province or similar licensing body in order to obtain a nursing license. An RN's scope of practice is determined by legislation, and is regulated by a professional body or council.
  Answer to the RN Question....     An RN is typically a Registered Nurse, licenced by the State Board of Nursing in which they are employed. They go through for â¦ mal schooling from 2-4 years on average, though many RN's continue their education to the Masters level and above. Answer to the RN Question....     An RN is typically a Registered Nurse, licenced by the State Board of Nursing in which they are employed. They go through for â¦ mal schooling from 2-4 years on average, though many RN's continue their education to the Masters level and above.