Final answer:
The correct answer for physical examination of an acutely infected tonsillar node is C. Firm but movable and tender, as this indicates an active immune response to infection resulting in inflammation and tenderness of the swollen lymph nodes.
Step-by-step explanation:
Acute infection of the tonsillar or lymph nodes tends to present with specific characteristics. The correct answer to what physical examination reveals for acutely infected nodes is C. Firm but movable and tender. This is because when an infection occurs, the immune system responds by sending white blood cells to the affected area to fight off the pathogens, resulting in swollen lymph nodes that are tender due to inflammation and movable as they are not fixed to underlying tissues. Lymph nodes are a crucial part of our immune system and change in size to filter through more pathogens or debris, as evidenced by Dr. Bouazizi's investigation into Wei's condition.
In the case of tonsillitis, the tonsils, which are lymphoid nodules, become swollen and sometimes covered in pus, indicating an active infection. This is consistent with the swollen lymph nodes, which can occur in response to a variety of infections, such as streptococcal or viral infections like mononucleosis. If tonsils become recurrently infected, a tonsillectomy may be considered.