A client is in a left side lying position while the practical nurse (PN) is making the occupied bed. The PN observes that the client is experiencing orthopnea. Which action should the PN implement?

Turn the client to a supine position and elevate the head of the bed.

Obtain a pulse oximeter to measure the client's oxygen saturation.

Advise the client to rest while remaining in a side lying position.

Tuck the sheets under the client and roll the client to the right side.