Obstetrics Nursing

For the Key terms and Abbreviations:

1. Briefly define the key terms for Obstetrics. Please it is very important that you define ALL terms in relation to obstetrics. 
2. Explain the term and what it means for OB in your own words.  Do not cut and paste definition from someplace else.
3. For the abbreviations, identify what the initials stand for with regard to obstetric.  You do not have to define the abbreviations.