A patient presents for evaluation of a cough. Which of the following anatomic regions can be responsible for a cough?

Correct Answer: C

Rationale: A cough can be attributed to various anatomic regions. Cardiac conditions, such as heart failure or fluid overload, can lead to congestion in the lungs and irritation of the airway, resulting in a cough. Ophthalmologic, auditory, and endocrine regions are less commonly associated with causing a cough.

Correct Answer: C

Rationale: To determine whether a murmur is systolic or diastolic, you should judge the relative length of systole and diastole by auscultation. Systolic murmurs occur during systole, which is the phase of the cardiac cycle when the heart is contracting and pushing blood out of the chambers. Diastolic murmurs occur during diastole, which is the phase when the heart is relaxing and filling with blood. By carefully listening to the timing of the murmur in relation to the cardiac cycle, you can determine if it is systolic or diastolic. Palpating the carotid pulse (Choice A) or radial pulse (Choice B) can help assess the pulse characteristics, but it does not directly determine whether a murmur is systolic or diastolic. Correlating the murmur with a bedside heart monitor (Choice D) may provide additional information about heart rate or rhythm, but it does not specifically indicate

Correct Answer: C

Rationale: Scrotal edema refers to swelling of the scrotum, which can be caused by various reasons such as infection, inflammation, trauma, or fluid collection. In this case, the examination findings of generalized swelling of the scrotum with no discrete masses or bulges on palpation suggest scrotal edema as the most likely diagnosis. The absence of bulges when a finger is placed through the inguinal rings with bearing down rules out a scrotal hernia. Hydrocele typically presents as a painless fluid-filled sac around the testicle, but there are no specific findings mentioned in the scenario to suggest a hydrocele. Varicocele involves dilated veins in the scrotum and may present as a soft lump that feels like a "bag of worms," which is not described in the examination findings provided.

Correct Answer: A

Rationale: Otosclerosis is a condition characterized by abnormal bone growth in the middle ear, specifically around the stapes bone. In cases of otosclerosis, the bone conduction is greater than air conduction on the affected side, which is seen in the scenario described. The Weber test localizes to the affected ear, meaning the patient hears the sound of the tuning fork better in the left ear in this case. This is because the abnormal bone growth can restrict the movement of the ossicles, leading to a conductive hearing loss. Otosclerosis typically affects one ear, and its presentation aligns with the results of the hearing tests performed in this case.

Correct Answer: C

Rationale: Diplopia occurring when one eye is covered is a condition known as monocular diplopia. This symptom is typically not caused by problems within the eye itself, such as irregularities in the cornea or lens. Instead, monocular diplopia with one eye covered is more likely to be an indication of a neurological issue, often involving the brainstem. Lesions or damage in the brainstem can disrupt the normal coordination of eye movements, leading to the perception of double vision when one eye is closed. Weakness of CN III (oculomotor nerve) or CN IV (trochlear nerve) may cause diplopia when both eyes are open, but it would not typically manifest as monocular diplopia.