Which will indicate a concealed hemorrhage in an abruptio placenta?
Correct Answer: A
Rationale: A concealed hemorrhage in abruptio placentae, also known as a concealed retroplacental hematoma, can cause rapid, significant bleeding behind the placenta with limited visible external bleeding. This internal bleeding can lead to significant blood loss and can cause the uterus to become tense and firm, resulting in a hard board-like abdomen upon palpation. This clinical sign is a key indicator of a concealed hemorrhage in abruptio placentae and should prompt immediate medical attention to prevent maternal and fetal complications. The other choices, such as decreased fundal height, bradycardia, and decreased abdominal pain, are not typically associated with a concealed hemorrhage in abruptio placentae.