Correct Answer: D

Rationale: A subconjunctival hemorrhage is a common and benign condition characterized by blood in the space between the conjunctiva and sclera of the eye. The condition often presents as a painless, sharply demarcated area of redness on the white part of the eye, typically without associated discharge or visual disturbances. In this case, the absence of eye pain, discharge, visual disturbances, and clear cornea make subconjunctival hemorrhage the most likely diagnosis. The history of forceful coughing with a recent cold is also consistent with the increased intraocular pressure leading to a rupture of a small blood vessel, resulting in the hemorrhage. Treatment is not usually required as the condition is self-limiting and resolves on its own over time.

Correct Answer: B

Rationale: Given the information provided about Jim's recent separation from his wife after a long marriage, coupled with the fact that he still experiences early morning erections, the likely cause for his sexual function difficulties is psychological issues. Separation, divorce, or relationship problems can have a significant impact on a person's sexual function due to emotional stress, anxiety, depression, or other mental health issues. In Jim's case, the presence of early morning erections suggests that there may not be a physiological issue like decreased testosterone levels, abnormal circulation, or impaired neural innervation. Instead, the situation seems more related to his emotional state and psychological well-being following the separation. It would be advisable for Jim to seek counseling or therapy to address these psychological factors affecting his sexual function.

Correct Answer: B

Rationale: The description of dark tan patches with a reddish cast that have sharp borders and fine scales, especially more prominent on the upper back, chest, neck, and upper arms, is classic for tinea versicolor. Tinea versicolor is a superficial fungal infection caused by Malassezia species, which commonly affects individuals who sweat more, such as those working outdoors like the construction worker in this case. The rash is often pruritic (itchy) and can vary in color from tan to pink or red. The fine scales on the patches are a result of the accumulation of the yeast in the affected areas.

Correct Answer: C

Rationale: In diabetic ketoacidosis (DKA), the body is in a state of metabolic acidosis due to the accumulation of ketones in the blood. One of the compensatory mechanisms to decrease the acidity in the body is increased breathing, known as Kussmaul breathing. This type of breathing is characterized by a rapid and deep pattern to blow off excess carbon dioxide and decrease the acidity of the blood. Therefore, in a patient with DKA, you would expect to observe rapid and deep breathing.

Correct Answer: D

Rationale: The closed fist gesture over the sternum to describe chest pain is a typical characteristic of angina pectoris. Angina pectoris is chest pain or discomfort that occurs when the heart muscle does not receive enough oxygen-rich blood. The gesture of clenching a fist over the sternum is often used to describe the tight, squeezing, or pressure-like discomfort experienced with angina. This type of chest pain is typically triggered by physical or emotional stress and is relieved by rest or medications like nitroglycerin. Considering the patient's age, smoking history, and the description of the chest pain gesture, angina pectoris should be a top consideration in this case.