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.
A military registered nurse is an enlisted active duty or reserve medical professional who meets RN licensing requirements. To become an RN, you must earn an Associate of Science in Nursing degree or a Bachelor of Science in Nursing degree from an accredited program. You must also pass the NCLEX-RN exam. You can enlist in the military before or after becoming a nurse, although some military programs offer tuition support for enlistees.