At how many weeks does respiration become possible for a fetus?

Which of the following placental grades demonstrates scattered calcifications?

Which of the following is a differential for placental abruption?

Normal placenta thickness should be between

Select the definition for placenta accreta.

 If a fetus is positioned in a cephalic position facing anterior, where will the fetal spine be located on the ultrasound image? 

Which of the following is a cause for abruptio placenta?

The term that refers to the topmost point of the skull.

Which would represent a placenta with the umbilical cord inserted within a centimeter of the placental margins? 

Placenta thickness should be measured at