Correct Answer: A

Rationale: DeQuervain's tenosynovitis is a condition that involves inflammation of the tendons located at the base of the thumb. The tendons affected are the abductor pollicis longus and extensor pollicis brevis. It typically causes pain and tenderness at the base of the thumb, which can worsen with certain movements of the wrist and thumb. In the case of the high school football player, his tenderness between the two tendons at the base of the thumb is suggestive of DeQuervain's tenosynovitis. It is a common overuse injury in athletes, especially those involved in activities that require repetitive hand and wrist movements, such as gripping a football during play. Treatment usually involves rest, splinting, ice, anti-inflammatory medications, and physical therapy.

Correct Answer: B

Rationale: The description of the rash on Mr. Garcia's chest associated with a burning pain that worsens with light touch indicates neuropathic pain. Neuropathic pain arises from damage or dysfunction of the nervous system, leading to abnormal pain sensations such as burning, tingling, or shooting pain. In this case, the presence of small blisters (vesicles) on reddened skin overlying an entire rib on one side suggests involvement of nerve fibers, characteristic of neuropathic pain. It is important to differentiate neuropathic pain from other types of pain (such as nociceptive/somatic, idiopathic, or psychogenic) as management strategies differ based on the underlying mechanisms of pain perception.

Correct Answer: C

Rationale: The patient's symptoms of intermittent, sharp chest pain with breathing that worsens with deep breaths and is relieved by lying on the right side are suggestive of pleural pain. Pleuritic chest pain is often described as sharp or stabbing and occurs when the parietal pleura, the outer lining of the lungs, becomes inflamed or irritated. In this case, the patient's history of an upper respiratory infection with a severe hacking cough two weeks ago suggests that the pleural pain may be related to pleurisy or pleuritis, which can occur as a complication of respiratory infections.

Correct Answer: D

Rationale: Inguinal hernias are common types of hernias that occur in the groin area. When a person strains, the hernia may become more noticeable as the abdominal contents push through a weak spot in the abdominal wall. The absence of symmetry of the inguinal areas with straining indicates that there is a hernia present, as the bulge or protrusion in the groin area becomes more prominent with straining. This makes a hernia more likely in this case. Therefore, option D is the correct choice in this scenario. The other options do not directly point to the presence of a hernia.

Correct Answer: A

Rationale: The findings described in the scenario point towards rectal prolapse. Rectal prolapse, also known as procidentia or rectal procidentia, is the full-thickness protrusion of the rectal wall through the anus. The characteristic presentation often includes the protrusion of a rosette of red mucosa from the anus when the patient bears down. This is consistent with the visual assessment mentioned in the scenario.