Which of the following is not considered unprofessional conduct in physical therapy?

In the context of physical therapy, unprofessional conduct typically refers to actions that violate ethical standards or professional guidelines. Ordinary negligence generally involves a failure to exercise the care that a reasonably prudent person would in similar circumstances. While negligence is a serious concern, not all instances of ordinary negligence rise to the level of unprofessional conduct.

In contrast, the other options clearly represent actions that are recognized as unprofessional in the field. Performing accepted procedures—those that are known and accepted by the profession—is a hallmark of professional practice, as it demonstrates adherence to established standards. Performing without proper training is a serious violation, as it poses a risk to patient safety and undermines the integrity of the profession. Agreeing to perform substandard procedures also represents a significant ethical breach, as it indicates a willingness to compromise patient care.

Thus, ordinary negligence may not always equate to unprofessional conduct under the rigorous definitions governing physical therapy practice, making it the correct choice for the question.