A 77-year-old retired nurse has an ulcer on a lower extremity that you are asked to evaluate when you do your weekly rounds at a local long-term care facility. All of the following are responsible for causing ulcers in the lower extremities except for which condition?

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: 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: 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: A

Rationale: The point of maximal impulse (PMI), also known as the apical impulse, is the point where the left ventricle is closest to the chest wall. Normally, the PMI is located in the left 5th intercostal space, around 7 to 9 cm lateral to the sternum. This area corresponds to the apex of the heart. By palpating the PMI, healthcare providers can assess the size, strength, and regularity of the heart's contractions, which can provide important diagnostic information about cardiac health. Locating the PMI accurately is essential for physical examination and diagnosis of cardiac conditions.

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.