Correct Answer: A

Rationale: The description provided, which includes a clearly demarcated, round patch of hair loss without visible scaling or inflammation and absence of hair shafts, is characteristic of alopecia areata. Alopecia areata is an autoimmune condition that causes hair loss in round or oval patches on the scalp or other parts of the body. It is not associated with pulling or twisting of hair (trichotillomania), fungal infection (tinea capitis), or hair loss due to constant pulling force (traction alopecia). In alopecia areata, the affected area usually appears smooth and without visible signs of irritation. Treatment options for alopecia areata may include corticosteroid injections, topical immunotherapy, or minoxidil.

Correct Answer: B

Rationale: The patient's history of swimming and presenting symptoms of ear pain, drainage, and manipulation tenderness are suggestive of external otitis, commonly known as swimmer's ear. External otitis is an infection of the outer ear canal, which can be caused by prolonged moisture exposure, trauma, or bacterial/fungal infections. The narrowed and erythematous canal with white debris is characteristic of this condition. Otitis media (Choice A) typically presents with deep ear pain, hearing loss, and sometimes fever, but does not involve the ear canal. Perforation of the tympanum (Choice C) would present with sudden relief of pain and possible drainage from the ear. Cholesteatoma (Choice D) is characterized by a painless cyst or mass in the middle ear, not presenting with these acute ear canal symptoms.

Correct Answer: A

Rationale: The most appropriate amount for a weekly weight reduction goal is typically .5 to 1 pound per week. This rate of weight loss is considered safe and sustainable in the long term. Losing weight too quickly (options B, C, D) can be harmful to your health and may lead to muscle loss, nutritional deficiencies, and a slow metabolism. Rapid weight loss is also harder to maintain in the long run. Gradual weight loss of .5 to 1 pound per week allows for healthy changes to diet and exercise habits, making it more likely to be maintained over time. It is also more likely to result in lasting weight loss and overall improvements in health and well-being.

Correct Answer: C

Rationale: For a new patient with the chief complaint of "I am here to establish care," a comprehensive health history would be appropriate. In this scenario, since the patient is new to the healthcare provider, it is important to gather detailed information about the patient's past medical history, family history, social history, medications, allergies, and specific health concerns. This comprehensive health history will help the healthcare provider establish a baseline of the patient's overall health and identify any potential risk factors or underlying conditions that may impact future care and treatment decisions. Additionally, obtaining a thorough health history is essential in building a strong patient-provider relationship and providing patient-centered care.

Correct Answer: D

Rationale: The patient's presentation of tenderness in the left upper quadrant and epigastric area, along with normal bowel sounds, is suggestive of acute pancreatitis. This condition typically presents with severe, steady epigastric pain that may radiate to the back or left upper quadrant. Patients may also have tenderness on physical examination in these areas. Acute pancreatitis is commonly associated with risk factors such as gallstones or excessive alcohol consumption.