A nurse is caring for an adult client in the primary care clinic. The nurse is reviewing the client's medical record.

A nurse is reviewing the client's medical record. Which of the following findings places the client at risk for heart disease? Select all that apply.

Choice A rationale

Heberden's nodes are bony enlargements located at the distal interphalangeal joints, which are the joints closest to the fingertips. These are classic markers of osteoarthritis, not rheumatoid arthritis. Osteoarthritis involves the mechanical wear and tear of articular cartilage rather than the systemic inflammatory process seen in rheumatoid arthritis. Therefore, observing these specific nodules would lead the clinician toward a degenerative joint disease diagnosis rather than an autoimmune inflammatory condition like rheumatoid arthritis.

Choice B rationale

Ulnar deviation is a characteristic finding in chronic rheumatoid arthritis where the fingers drift toward the ulnar bone due to the inflammatory destruction of the metacarpophalangeal joints. This systemic autoimmune disease causes synovial hypertrophy and ligamentous laxity, resulting in the classic joint deformities and malalignments observed in long-term cases. Unlike osteoarthritis, which is localized, rheumatoid arthritis involves symmetrical joint involvement and systemic symptoms, making ulnar deviation a hallmark sign of advanced disease progression.

Choice C rationale

Tophi are deposits of monosodium urate crystals that appear as hard, yellow or white nodules under the skin, typically around joints or the outer ear. These are the pathognomonic feature of chronic tophaceous gout, which results from long-standing hyperuricemia. While gout is an inflammatory arthritis, the pathophysiology involves crystal deposition rather than the autoimmune synovial invasion seen in rheumatoid arthritis. Thus, the presence of tophi indicates a metabolic disorder rather than a systemic autoimmune condition.

Choice D rationale

Bouchard's nodes are bony growths found at the proximal interphalangeal joints, which are the middle joints of the fingers. Much like Heberden's nodes, these are indicative of osteoarthritis and represent the formation of new bone, or osteophytes, in response to cartilage degradation. While rheumatoid arthritis also affects the proximal interphalangeal joints, it typically causes soft tissue swelling and spindling rather than the hard, bony outgrowths characterized by Bouchard's nodes in degenerative joint diseases.

Choice A rationale

The brachial pulse is located in the antecubital fossa and is primarily used for blood pressure measurement or assessing circulation in the infant. While it reflects systemic arterial pressure, it is not the standard peripheral site used for calculating a pulse deficit in adults. A pulse deficit occurs when the heart's contractions are too weak to transmit a palpable pressure wave to the periphery, and the radial artery is the conventional comparative site.

Choice B rationale

The dorsalis pedis pulse is found on the dorsal aspect of the foot and is used to evaluate peripheral vascular status in the lower extremities. Because of its significant distance from the heart, there is a natural delay and potential for dampened amplitude due to peripheral artery disease. It is not used for pulse deficit assessments because it does not provide a reliable immediate comparison to the central cardiac activity represented by the apical pulse.

Choice C rationale

A pulse deficit is determined by simultaneously measuring the apical pulse via auscultation and the radial pulse via palpation for one full minute. The radial artery is the most distal easily accessible site that should normally reflect every ventricular contraction. A difference between the apical and radial rates indicates that some cardiac contractions are not producing enough stroke volume to be felt peripherally, often seen in conditions like atrial fibrillation.

Choice D rationale

The carotid pulse is a central pulse located in the neck, reflecting pressure changes very close to the aorta. Because of its proximity to the heart, it is less likely to show a deficit compared to more distal peripheral sites. Using the carotid pulse would not accurately identify a pulse deficit because it usually remains palpable even when stroke volume is diminished, whereas the radial pulse would disappear, highlighting the discrepancy in perfusion.