Complete the following sentence by using the lists of options.

Respiratory pattern and pulse. Improvement in PE is indicated by a normalizing respiratory rate (decreased dyspnea, slower breathing) and a decreasing pulse (from tachycardia toward normal). These reflect improved oxygenation and reduced right heart strain — the two hallmarks of PE recovery. Lung sounds, temperature, blood pressure, and surgical site are monitored but are not the primary PE improvement indicators.