Access other's Approval notifications incase of Emergency

Summary

We have 4 people as buyers and one of them is out because of emergency, but there is certain purchase that waiting for her approval, is there a way to acess them and reassign to others?

Content

We have 4 people as buyers and one of them is out because of emergency, but there are certain purchase orders that are waiting for her approval and some other she is working on and next she is the approver, so is there a way to access them and reassign to others so that other buyer can take action on it?