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: 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: 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.

Correct Answer: A

Rationale: The clinical presentation described is consistent with a Bartholin's gland infection, also known as Bartholin's abscess. The Bartholin's glands are located on each side of the vaginal opening and can become blocked, leading to glandular secretions accumulating and forming an abscess. Symptoms of Bartholin's gland infection include pain, swelling, and tenderness in the vulvar area. The pain can be severe and exacerbated by sitting, similar to what the patient is experiencing. On examination, a red, tense swelling to the side of the introitus is a characteristic finding.

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.