We did not have to go the day before to pick up patients in OB or Psych. Some of the clinical instructors in Peds made the students go the day before to pick up patients ( I believe it was the clinical the went to Medical City Dallas) I went to Childrens Hospital and it was great we got to do emergency room , OR, NICU, PICU, PICC IV team, and a surgical floor. I went to Richardson for Psych instructor very layed back and nice. The other group got to see more intresting cases so if you are very intrested in Psych go to Green oaks ( the one by Medical City). For OB I went to Parkland great experience saw many babys being born also spent a day in NICU. You can do Peds with out the book.