On which type of client should ultrasound treatments not be performed?

Ultrasound treatments are generally contraindicated for pregnant clients due to the potential risks associated with exposing the developing fetus to sound waves. While some forms of ultrasound are safe during pregnancy, the therapeutic use of ultrasound should be avoided unless specifically prescribed by a healthcare provider. This caution arises from the lack of extensive research on the effects of ultrasound on fetal development, which makes it prudent to avoid any procedures that could pose a risk.

Clients with sensitive skin may still receive ultrasound treatments, as the modality can often be adjusted to minimize discomfort. Similarly, clients with oily skin or normal skin are usually suitable candidates for ultrasound therapy, provided they do not have any other contraindications. Thus, the reason for avoiding ultrasound treatments specifically pertains to the potential implications for pregnant clients.