Final answer:
Placental abruption is characterized by uterine tenderness and hypertonicity, a soft abdomen, and fetal bradycardia.
Step-by-step explanation:
Placental abruption is a condition in which the placenta detaches from the uterus prematurely. The physical examination findings for placental abruption may include uterine tenderness and hypertonicity, which means the uterus is abnormally tense and contracted. The abdomen may feel soft due to bleeding and the fetus may experience bradycardia, which is a slow heart rate. Absence of abdominal pain is not typically associated with placental abruption.