A 17-year-old high school senior presents to your clinic in acute respiratory distress. Between shallow breaths he states he was at home finishing his homework when he suddenly began having right-sided chest pain and severe shortness of breath. He denies any recent traumas or illnesses. His past medical history is unremarkable. He doesn't smoke but drinks several beers on the weekend. He has tried marijuana several times but denies any other illegal drugs. He is an honors student and is on the basketball team. His parents are both in good health. He denies any recent weight gain, weight loss, fever, or night sweats. On examination you see a tall, thin young man in obvious distress. He is diaphoretic and is breathing at a rate of 35 breaths per minute. On auscultation you hear no breath sounds on the right side of his superior chest wall. On percussion he is hyperresonant over the right upper lobe. With palpation he has absent fremitus over the right upper lobe. What disorder of the thorax or lung best describes his symptoms?

Correct Answer: A

Rationale: The clinical presentation of this 17-year-old high school senior is concerning for a spontaneous pneumothorax. A spontaneous pneumothorax occurs when air enters the pleural space, resulting in lung collapse. Risk factors for spontaneous pneumothorax include tall, thin body habitus and smoking. In this case, the patient's sudden onset of right-sided chest pain and severe shortness of breath, along with absent breath sounds on the right side of the chest and hyperresonance on percussion, are consistent with a pneumothorax. The absence of lung sounds and fremitus on palpation over the right upper lobe further support this diagnosis. Chronic obstructive pulmonary disease (COPD) and asthma typically present with more chronic symptoms, while pneumonia is usually associated with fever, productive cough, and other signs of infection. Given the history and physical examination findings, spontaneous pneumothorax is the most

Correct Answer: C

Rationale: The description of the patient's left shoulder pain, with a sharp catching pain and a sensation of something grating during overhead movements, in addition to tenderness just below the tip of the acromion in the area of tendon insertions, is suggestive of calcific tendinitis. Calcific tendinitis occurs when calcium deposits form within a tendon, most commonly affecting the rotator cuff tendons. This condition can cause pain, tenderness, and limited range of motion, particularly with certain movements like overhead reaching. The negative drop arm test, lack of limitation with shoulder shrug, absence of tenderness to palpation in the bicipital groove, and the patient not holding his arm close to his side help differentiate calcific tendinitis from other shoulder pathologies like rotator cuff tendinitis, rotator cuff tear, and bicipital tendinitis.

Correct Answer: C

Rationale: The patient's history of frequent loose stools with cramping, occurring since high school and worsening during periods of nervousness, along with occasional constipation, is characteristic of irritable bowel syndrome (IBS). IBS is a functional gastrointestinal disorder that presents with symptoms such as abdominal pain or discomfort, bloating, and altered bowel habits (diarrhea, constipation, or both) without any evidence of organic disease. The absence of systemic symptoms like fever, weight loss, or blood in the stool, as well as normal physical examination findings, also support the diagnosis of IBS in this case. This condition is often triggered or exacerbated by stress or anxiety. Monitoring stress levels, dietary modifications, and possibly prescription medications may help manage IBS symptoms in this patient.

Correct Answer: D

Rationale: Weight loss can have a significant impact on the health problems associated with obesity. Even a modest weight loss of around 10% can lead to noticeable improvements in conditions such as diabetes, hypertension, osteoarthritis, and obstructive sleep apnea. Encouraging Mr. Curtiss to focus on achieving a meaningful but achievable goal, such as a 10% weight loss, can help him experience positive changes in his health and overall wellbeing, even if his ultimate goal weight seems far away. This approach can also help to boost his motivation and confidence in his ability to make progress towards better health.

Correct Answer: A

Rationale: A murmur heard only at the cardiac apex is most likely due to mitral valve pathology. The mitral valve is located near the apex of the heart, and murmurs related to mitral valve issues are typically best heard at the apex during auscultation. Mitral valve diseases such as mitral valve prolapse, mitral stenosis, or mitral regurgitation can lead to the development of a murmur in this location.

Correct Answer: C

Rationale: The obturator sign is a physical examination maneuver used to assess for irritation of the obturator muscle due to an inflamed appendix that is in close proximity. This pain is typically felt in the right lower quadrant or hypogastric region. The sign is elicited by passively flexing the hip and knee of the patient, then internally rotating the hip. An alternative method is to position the patient on her left side and ask her to raise her right thigh against resistance while the examiner provides counterpressure. Pain experienced by the patient with these maneuvers is consistent with obturator sign, indicating possible appendicitis. Hence, option C is the correct answer.

Correct Answer: D

Rationale: Hypertension, or high blood pressure, is not typically associated with causing ulcers in the lower extremities. The most common causes of lower extremity ulcers are arterial insufficiency, venous insufficiency, and diminished sensation in pressure points. Arterial insufficiency leads to decreased blood flow to the lower extremities, causing tissue damage and ulcers. Venous insufficiency results in poor circulation and increased pressure in the veins, leading to ulcers. Diminished sensation in pressure points, often seen in conditions like diabetes, can cause ulcers due to lack of feeling and increased risk of trauma. So, hypertension is not directly related to the development of lower extremity ulcers.

Correct Answer: D

Rationale: Since the patient, Susanne, has been experiencing headaches, muscle aches, and fatigue for the last 2 months, and a thorough history, examination, and laboratory workup have not revealed a definitive cause, the next step would be to screen for depression. Depression can present with physical symptoms such as headaches, muscle aches, and fatigue. It is important to consider mental health factors that could be contributing to Susanne's symptoms before proceeding with further referrals to specialists. Screening for depression would help in determining if psychological factors are playing a role in her physical symptoms.

Correct Answer: D

Rationale: The most appropriate response based on the information provided would be to give the patient information concerning the reduction of fat and cholesterol in her diet because she is obese. The patient's weight falls in the obese category, and addressing diet is an important step in managing obesity. Providing guidance on reducing fat and cholesterol intake can help the patient make healthier food choices and work towards achieving a healthier weight. Additionally, diet plays a significant role in overall health, so addressing nutrition is crucial when managing obesity. It is important to approach the topic sensitively and provide support and resources to help the patient make positive changes for their health.