Which one of the following would be most likely to require an urgent call to the individual's doctor?

The situation that would most likely require an urgent call to the individual's doctor is an infection of an injury. Infections can escalate quickly and lead to more serious health complications if not addressed promptly. Signs of infection may include redness, swelling, warmth, pus, fever, and increasing pain. These symptoms indicate that the body's response has become serious and may require medical intervention to prevent further issues, including sepsis in severe cases.

In contrast, while choking and uncontrolled bleeding also represent urgent medical situations, they are typically handled as emergencies requiring immediate first aid intervention and possibly calling emergency services rather than just the individual’s doctor. A minor cut generally does not necessitate a call to a doctor unless there are signs of infection or complications, making the infection of an injury the most pressing situation among the choices.