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: The pectoral lymph node group, also known as the Level III lymph nodes, is the most commonly involved in breast cancer metastasis. These lymph nodes are located along the lower border of the pectoralis minor muscle and are an important regional drainage site for breast tissue. Therefore, in cases of breast cancer, the pectoral lymph nodes are frequently affected due to their proximity to the breast tissue.

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.

Correct Answer: C

Rationale: Given the patient's presentation of itching, anorectal pain, and tenesmus, along with rectal examination findings of generalized tenderness without prostate abnormalities, proctitis is the most likely diagnosis. Proctitis is inflammation of the rectal lining and is commonly associated with symptoms such as rectal pain, itching, tenesmus (feeling of incomplete defecation), and sometimes rectal bleeding. It can have various causes, including sexually transmitted infections (such as gonorrhea, chlamydia), inflammatory bowel disease, radiation therapy, or trauma.

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: A

Rationale: The most likely diagnosis for this patient's symptoms and signs is acute diverticulitis. His presentation of abdominal pain, constipation, and low-grade fever, along with tenderness over the left lower quadrant, is consistent with diverticulitis, which is inflammation or infection of small pouches (diverticula) that can develop in the colon. The history of recent onset of symptoms after consuming popcorn, typically a high-fiber food that can exacerbate diverticulitis, further supports this diagnosis. The negative fecal occult blood test makes more acute intra-abdominal processes like acute appendicitis less likely. Acute cholecystitis would present with right upper quadrant pain, and mesenteric ischemia typically presents with severe abdominal pain, nausea, and vomiting, as well as signs of abdominal distress.

Correct Answer: D

Rationale: It is crucial to assess Adam's suicide risk immediately due to the statements he made about it being better if he were not here. This indicates possible suicidal ideation, which requires urgent attention and intervention. Asking directly about suicidal thoughts and intentions can help determine the level of risk and ensure that appropriate support and resources are provided to Adam. It is important to take any mention of suicide seriously and prioritize the safety and well-being of the individual in such situations.

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.