Which is true of splitting of the second heart sound?

Correct Answer: C

Rationale: Splitting of the second heart sound is when the aortic and pulmonic valves close at slightly different times, resulting in two distinct components to the sound. This split is best heard over the apex of the heart, typically with the diaphragm of the stethoscope. The aortic component is heard first and represents closure of the aortic valve, followed by the pulmonic component, representing closure of the pulmonic valve. The split can narrow during inspiration and widen during expiration, which is important to keep in mind during assessment.

Correct Answer: A

Rationale: A hyperresonant percussion note is a more intense and booming sound heard during percussion of the thorax. This can occur when there is an increased amount of air present in the chest cavity. In the case of a large pneumothorax, which is the presence of air in the pleural space causing partial or complete collapse of the lung, the percussion note would be hyperresonant due to the increased air content in the thoracic cavity. Lobar pneumonia, pleural effusion, and empyema would typically produce dull or flat percussion notes due to the presence of fluid or solid material in the pleural space.

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: 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: A

Rationale: The presentation of pain that is markedly worse when the left arm is drawn across the chest (adduction) is characteristic of a rotator cuff tear. This is because when the arm is adducted, it puts stress on the torn rotator cuff tendons, causing pain. In contrast, subacromial bursitis typically presents with pain during overhead movements, acromioclavicular joint involvement may present with pain localized to the joint itself, and adhesive capsulitis (frozen shoulder) typically presents with pain and stiffness that worsens with all movements.

Correct Answer: A

Rationale: Scotomas refer to areas of partial alteration in the field of vision. These blind spots can be caused by various eye conditions such as glaucoma, retinal detachment, or optic nerve damage. Symptoms involving the eye like scotomas are important to recognize and address promptly to prevent potential vision loss or other complications. Tinnitus (choice B) refers to ringing in the ears, dysphagia (choice C) refers to difficulty swallowing, and rhinorrhea (choice D) refers to a runny nose, none of which are symptoms involving the eye.

Correct Answer: C

Rationale: A positive transillumination test is a key finding that would lead you to suspect a hydrocele as the cause of scrotal swelling. In a hydrocele, the scrotal fluid transilluminates well, meaning that when a light is shone through the scrotum, it will appear as a fluid-filled sac with a clear glow. This is a characteristic feature of a hydrocele and helps differentiate it from other causes of scrotal swelling, such as hernias or testicular tumors. Presence of bowel sounds in the scrotum (Choice A) would be concerning for a hernia rather than a hydrocele. Being unable to palpate superior to the mass (Choice B) may suggest a large hydrocele but is not specific to diagnosing a hydrocele. The normal thickness of the skin of the scrotum (Choice D) can be found in various scrotal conditions and is not specific

Correct Answer: D

Rationale: It is important to maintain a calm demeanor when walking into the examination room to speak with your first clinic patient, especially in a busy and high-pressure situation. Demonstrating calmness will help to build rapport with the patient, create a sense of trust, and promote effective communication. This demeanor will also convey professionalism and confidence, which are essential qualities for a healthcare provider. Displaying irritability, impatience, or boredom can negatively impact the patient-provider relationship and hinder effective communication, potentially compromising the quality of care provided.

Correct Answer: D

Rationale: The most important question to ask in this scenario would be if the patient has tried to lose weight. Given the patient's significant unintentional weight loss (from 140 to 110 pounds in a year), especially in the context of a chronic cough and a long history of smoking, lung cancer becomes a top concern. Unintentional weight loss is a common symptom seen in patients with lung cancer. Therefore, understanding if the weight loss was intentional or unintentional can provide crucial information in the diagnostic evaluation for possible lung cancer.