He is afebrile. His abdominal examination reveals normal bowel sounds, but he is very tender in the left upper quadrant and epigastric area. He has no Murphy's sign or tenderness in the right lower quadrant. The remainder of his abdominal examination is normal. His rectal, prostate, penile, and testicular examinations are normal. He has no inguinal hernias or tenderness with that examination. Blood work is pending. What etiology of abdominal pain is most likely causing his symptoms?

Correct Answer: D

Rationale: The patient's presentation of tenderness in the left upper quadrant and epigastric area, along with normal bowel sounds, is suggestive of acute pancreatitis. This condition typically presents with severe, steady epigastric pain that may radiate to the back or left upper quadrant. Patients may also have tenderness on physical examination in these areas. Acute pancreatitis is commonly associated with risk factors such as gallstones or excessive alcohol consumption.

Correct Answer: A

Rationale: In a 30-year-old man with a firm, 2-cm mass under his areola and no other symptoms, the most likely diagnosis is breast tissue. Gynecomastia is a common condition in males where there is proliferation of breast tissue. It typically presents as a firm subareolar mass and can occur due to hormonal imbalances, medication use, or underlying medical conditions. Given the lack of family history of breast cancer, absence of other symptoms, and the age of the patient, breast tissue is the most probable diagnosis in this case. Breast cancer is less likely in this scenario, especially without any additional concerning findings or family history. Fibrocystic disease and lymph node involvement are also less likely given the presentation of a firm mass under the areola.

Correct Answer: D

Rationale: The most likely explanation for the discrepancy between the patient's relatively normal blood pressure reading (118/92) and the presence of hypertensive changes in her retinas and mild proteinuria is that the process causing her retinopathy and kidney problems has resolved. Hypertensive changes in the retinas and proteinuria are typically signs of chronic uncontrolled hypertension, but they can also be residual manifestations of previously uncontrolled hypertension that has now been effectively treated.

Correct Answer: B

Rationale: A sudden, painful unilateral loss of vision is a medical emergency that may be caused by central retinal artery occlusion. This condition occurs when the main artery supplying blood to the retina becomes blocked, leading to a sudden and severe reduction in blood flow to the eye. The lack of blood flow can cause irreversible damage to the retina, resulting in a significant loss of vision. Patients with central retinal artery occlusion typically present with sudden, painless, and severe vision loss in one eye. Immediate medical attention is crucial to try to restore blood flow and minimize potential permanent vision loss in these cases. Vitreous hemorrhage, macular degeneration, and optic neuritis do not typically present with sudden, painful unilateral loss of vision as seen in central retinal artery occlusion.

Correct Answer: B

Rationale: The third heart sound (S3) is a low-frequency sound heard in early diastole, immediately following the second heart sound (S2). It is generated by the abrupt deceleration of the column of blood against the ventricular wall during the rapid passive filling phase (early diastole) when the ventricle is suddenly stretched by a large volume of blood. The S3 sound typically reflects decreased ventricular compliance, rather than normal compliance. An S3 sound is often considered pathological and is commonly associated with conditions such as heart failure, volume overload, and dilated cardiomyopathy. Therefore, the statement that the third heart sound reflects normal compliance of the left ventricle (Choice B) is incorrect.

Correct Answer: B

Rationale: Asking Mr. Q. when his last drink was is an open-ended question that can provide valuable information regarding his alcohol consumption patterns. This question allows Mr. Q. to disclose whether he has been drinking recently and can help determine the frequency and quantity of his alcohol consumption. It avoids leading or judgmental language, which can help build rapport and facilitate a more honest conversation about his alcohol use. By knowing when his last drink was, you can better assess the potential impact of alcohol on his current symptoms of fatigue and further explore any potential issues related to alcohol abuse.

Correct Answer: B

Rationale: Tympany is the percussion note you would obtain over the gastric bubble. Tympany is a drum-like sound and is typically heard over air-filled structures in the body, such as the stomach, intestines, and lungs. When percussing over the gastric bubble (air-filled stomach), you would expect to hear a tympanic note due to the presence of air in the stomach creating resonance. Resonance (choice A) is a low-pitched, hollow sound heard over normal lung tissue. Hyperresonance (choice C) is an abnormally loud, booming sound heard over hyperinflated lungs, as in conditions like emphysema. Flatness (choice D) is a dull sound heard over solid organs or areas of tissue consolidation, such as over the liver or a pleural effusion.

Correct Answer: B

Rationale: The scenario described suggests that Ray experiences pain only when actively lifting his arm over his head, which indicates the issue is likely originating from structures outside of the joint itself. When the shoulder is moved passively (moved by an external force), there is full range of motion without pain, suggesting that the limitation and pain occur due to muscles, tendons, or ligaments surrounding the joint rather than within the joint itself. In this case, the joint disease is likely to be extra-articular, involving structures such as muscles or tendons rather than being articular in nature.

Correct Answer: A

Rationale: Intermittent claudication is a common symptom of peripheral vascular disease. It is characterized by muscle pain or cramping in the legs, usually in the calves, thighs, or buttocks, that occurs during physical activity such as walking and is relieved by rest. This symptom is due to inadequate blood flow to the muscles during exercise. It is important to assess for intermittent claudication in patients with risk factors such as smoking, diabetes, and hypertension, as it may indicate underlying peripheral arterial disease. The other symptoms listed (chest pressure with exertion, shortness of breath, knee pain) are not typically associated with peripheral vascular disease.