Is it typical for the doctor to send the placenta to Pathology after a baby is born in the hospital?

When my daughter was born four years ago. The water broke on a Tuesday and she came out almost 48 hours later. It was not two days of active labor, but it is a long time between the water breaking and the baby coming out.

After she was born, the doctor took the placenta and told the nurse to send it to Pathology. I was wondering if he wanted it to be tested for drugs or something, since it was a long time to be in labor. I didn’t ask him because it was late at that point and I was tired, and he was kind of cranky (because I gave him a hard time LOL).

Is it typical for the doctor to send the placenta to Pathology?