Why do medical emergency teams not beam?

When there’s a medical emergency on the Enterprise, is there a reason that the response teams don’t beam directly to the injured? Would transporters not allow for quicker response and give patients a better chance of survival?

For example, in TNG S4E7 Reunion, when K’Ehleyr is dying, the medical team takes 1:30 to get to her quarters. Dr. Crusher later says that "there wasn’t enough time to take her into stasis", which seems like a very good argument for transporters.