Final answer:
Depressed patients with inadequate pain control are at increased risk of secondary injuries and infections, with certain populations and professionals facing even higher risks.
Step-by-step explanation:
Depressed patients with inadequate pain control are at increased risk of secondary injuries and infections. This is because the inability to fully perceive pain sensation can lead to the neglect of injuries or conditions that might otherwise be addressed promptly. Additionally, in specific populations, such as drug addicts, there is a higher risk for infections due to unsafe practices like shared needles. Professionals like phlebotomists or dentists might also be at increased risk due to occupational hazards such as needle sticks, which can lead to secondary infections if not managed properly.