Final answer:
Physical therapists generally have the authority to evaluate patients without a referral in most areas, providing greater accessibility to their services, but regulations can vary by state and insurer requirements.
Step-by-step explanation:
The statement 'a PT may evaluate without referral' is generally considered to be true. In most areas, physical therapists (PTs) have direct access to patients, meaning they are able to evaluate and treat patients without a physician's referral. This capability provides greater accessibility to physical therapy services and can lead to quicker interventions. However, there are variations in practice authority from state to state, and in some instances, insurance providers may require a physician's referral for reimbursement purposes. It is important for PTs to be familiar with the regulations and requirements in their specific practicing state.