On auscultation her lung fields have normal breath sounds with no rhonchi, wheezes, or crackles. Percussion and palpation are unremarkable. Auscultation of the heart has an S and S 1 2 with no S or S . A scratching noise is heard at the lower left sternal border, coincident with 3 4 systole; leaning forward relieves some of her pain. She is nontender with palpation of the chest wall. What disorder of the chest best describes this disorder?

Correct Answer: B

Rationale: The clinical presentation described involves a patient with pericarditis. Pericarditis is inflammation of the pericardium, the sac surrounding the heart, which can lead to characteristic findings such as a scratching noise heard on auscultation, leaning forward relieving pain, and normal lung examination findings. The presence of pericarditis can also lead to a pericardial friction rub, which is often described as a scratching or grating sound heard best at the lower left sternal border.

Correct Answer: C

Rationale: This categorization is based on the blood pressure readings. Stage 1 hypertension is defined as having a systolic blood pressure between 130-139 mmHg or a diastolic blood pressure between 80-89 mmHg. The blood pressure falls within this range, indicating mild hypertension. It is important to monitor and manage blood pressure to prevent complications associated with hypertension.

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: D

Rationale: Placing the patient in the left lateral decubitus position and auscultating with the bell is important to detect subtle sounds like the mitral stenosis murmur, opening snap of the mitral valve, and S3 and S4 gallops. The left lateral decubitus position helps bring the heart closer to the chest wall, allowing for better transmission of these sounds that may be missed in the supine position.

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.