Dawn is a 55-year-old woman who comes in today for her yearly wellness examination. You carefully perform the rectal examination in the lithotomy position and feel a mass against the bowel wall which is firm and immobile. Which of the following is most likely?

Correct Answer: A

Rationale: The presence of a firm and immobile mass felt against the bowel wall during a rectal examination is concerning for a potential malignancy, such as colon cancer. Other conditions such as hemorrhoids or anal fissures are typically not associated with a mass that is firm and immobile. The "Valve of Houston" is a term that does not pertain to this scenario and is not a recognized medical entity. Therefore, the most likely diagnosis based on the given information is colon cancer, and further evaluation such as a colonoscopy would be warranted for definitive diagnosis and management.

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: A

Rationale: The progression of excruciating pain starting under the lower ribs on the right side, then moving to the lateral abdomen, and finally settling in the right lower quadrant is classic for appendicitis. Appendicitis is an inflammation of the appendix, a small tube-like structure attached to the cecum (beginning of the large intestine). The pain typically starts around the umbilicus and then migrates to the right lower quadrant, where the appendix is located. Other symptoms that may accompany appendicitis include fever, nausea, vomiting, loss of appetite, and tenderness at McBurney's point (a specific area in the abdomen). It is a medical emergency that requires immediate attention to avoid complications such as perforation and peritonitis.

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: A

Rationale: The information provided about the patient being treated for an asthma exacerbation and not being intubated falls under the category of adult illnesses. Asthma is a common respiratory condition that affects people of various ages but is more prevalent in adults. The fact that the patient was treated for an asthma exacerbation and has not required intubation indicates a relevant medical history related to adult illnesses and respiratory conditions. This information would be considered when evaluating and managing the patient's current health status and potential risks related to respiratory issues.

Correct Answer: A

Rationale: Rheumatoid arthritis is a systemic autoimmune disease that primarily affects the joints. It commonly presents with pain, swelling, and stiffness in multiple small joints such as those in the hands, wrists, and feet. It is more prevalent in females in their 30s to 50s. Rheumatoid arthritis is characterized by chronic inflammation of the synovial membrane, leading to joint damage and deformities over time. Laboratory tests showing elevated inflammatory markers, such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR), along with positive rheumatoid factor and anti-cyclic citrullinated peptide (anti-CCP) antibodies, can help in confirming the diagnosis of rheumatoid arthritis.

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: C

Rationale: The presentation of multiple small, blood-red, raised lesions over the anterior chest and abdomen in a middle-aged man raises concern for a condition known as cherry angiomas. Cherry angiomas are common benign vascular growths often seen in middle-aged and older individuals. They are typically asymptomatic and do not require treatment unless they are bothersome to the patient cosmetically.

Correct Answer: A

Rationale: The most significant risk factor for breast cancer in the patient's personal and family history is having a first-degree relative with premenopausal breast cancer. This is because the age at which a family member was diagnosed with breast cancer can be indicative of potential genetic predispositions that may increase the patient's own risk of developing the disease. Women with a first-degree relative who was diagnosed with breast cancer before menopause (premenopausal) are at a higher risk themselves compared to those with a family history of postmenopausal breast cancer. In this case, the patient's mother had unilateral breast cancer in her 70s, which suggests a higher risk compared to postmenopausal breast cancer. Other factors such as early age at menarche or age at first live birth are also important in assessing breast cancer risk, but having a first-degree relative with premenopausal breast cancer is the most significant