Final answer:
True, a medical assistant may insert a urinary catheter if directed by a healthcare professional.
Step-by-step explanation:
Yes, if directed by a healthcare professional, a medical assistant may insert a urinary catheter. A urinary catheter is a flexible tube that is inserted into the bladder through the urethra to drain urine. It is a common procedure used in hospitals, clinics, and other healthcare settings to help patients who are unable to urinate on their own or who require accurate monitoring of urine output.