Final answer:
Before applying moist heat or cold applications, you need to assess the patient's skin for any contraindications.
Step-by-step explanation:
Before applying moist heat or cold applications, you need to assess the patient's skin for any contraindications. This is important because certain skin conditions or injuries may make it unsafe or ineffective to apply heat or cold therapy.
For example, if a patient has a severe burn or an open wound, heat or cold therapy may cause further damage or delay healing. By carefully assessing the patient's skin, you can ensure that the chosen therapy is appropriate and safe.