In assessing a client with chronic venous insufficiency, which manifestation would provide a cue for the development of a venous ulcer?
Pallor on elevation of the extremity.
Intermittent claudication after walking.
Cool and shiny skin on the affected area.
Bronze-brown pigmentation of the lower extremities.
The Correct Answer is D
Choice A rationale
Pallor on elevation of the extremity is a classic sign of peripheral arterial disease, not chronic venous insufficiency. When an limb with arterial blockages is raised, gravity hinders the already compromised blood flow, leading to a pale appearance. In contrast, venous insufficiency involves difficulty returning blood to the heart, which usually results in congestion and edema rather than pallor. This clinical finding helps differentiate between the various types of peripheral vascular disorders.
Choice B rationale
Intermittent claudication is characterized by muscle pain or cramping during exercise that is relieved by rest, and it is a hallmark symptom of arterial insufficiency. It occurs when the arterial supply cannot meet the increased metabolic demand of the muscles. Patients with chronic venous insufficiency typically experience a dull ache or heaviness that worsens with prolonged standing rather than sharp exertional pain. Therefore, claudication does not serve as a cue for venous ulcer development.
Choice C rationale
Cool and shiny skin, often accompanied by hair loss and thickened toenails, is indicative of chronic arterial insufficiency and poor localized perfusion. In venous disease, the skin is usually warm due to blood pooling and may be thick or leathery. Shiny skin suggests that the tissue is atrophic from a lack of oxygenated blood. Because venous ulcers occur in the context of high venous pressure and congestion, cool skin is not a characteristic finding.
Choice D rationale
Bronze-brown pigmentation, or hemosiderin staining, occurs in chronic venous insufficiency when high pressure causes red blood cells to leak into the surrounding tissue. As these cells break down, they release iron, which stains the skin. This discoloration is a significant cue that the patient has advanced venous disease and is at high risk for developing a venous ulcer. These ulcers typically form near the medial malleolus where venous hypertension is most severe.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Pressure injuries typically present as localized areas of tissue necrosis or skin breakdown over bony prominences such as the sacrum or heels. While they can involve inflammation if infected, the classic signs of redness, swelling, and warmth specifically at a surgical incision site are more indicative of a localized inflammatory response to pathogens. Pressure injuries are graded by stages rather than the acute inflammatory symptoms often seen with post-surgical wound complications or cellulitis.
Choice B rationale
Dehydration involves a systemic fluid volume deficit that manifests as poor skin turgor, dry mucous membranes, and concentrated urine. It does not cause localized redness, swelling, or warmth at an incision site. While adequate hydration is essential for the biochemical processes of wound healing, its absence leads to delayed healing or tissue friability rather than the classic signs of inflammation. Normal skin turgor and moist membranes are indicators of a balanced fluid status in patients.
Choice C rationale
Malnutrition, particularly protein-calorie malnutrition or vitamin C deficiency, impairs the synthesis of collagen and slows the inflammatory phase of wound healing. However, it is not a direct cause of acute redness, heat, and swelling at a surgical site. Chronic nutritional deficits may lead to wound dehiscence or delayed closure, but the immediate presence of warmth and edema usually signals an active immune response to a foreign invader or internal injury within the tissue.
Choice D rationale
Infection is the primary hypothesis when a surgical incision displays redness, swelling, and warmth. These are the cardinal signs of inflammation caused by the immune system responding to microbial invasion. Pathogens trigger vasodilation and increased capillary permeability, leading to the heat and edema observed. A normal white blood cell count ranges from 5000 to 10000 mm, and an elevation beyond this range often confirms the nurse's suspicion of a localized or systemic infection.
Correct Answer is A
Explanation
Choice A rationale
Monitoring cardiorespiratory status is the highest priority for an electrical burn patient because electricity frequently causes cardiac arrhythmias or arrest. The heart's electrical conduction system is extremely sensitive to external currents, which can trigger ventricular fibrillation. Additionally, the path of the current can cause respiratory paralysis or delayed cardiac issues. Immediate and continuous EKG monitoring is essential to detect and treat life-threatening dysrhythmias that may not be immediately apparent upon initial physical inspection of the skin.
Choice B rationale
Assessing circulation to the extremities is important because electrical burns can cause internal tissue damage and swelling, leading to compartment syndrome. However, this is secondary to the immediate threat of cardiac arrest. While the nurse must check peripheral pulses and capillary refill to ensure the limbs are perfused, the systemic stabilization of the heart and lungs takes precedence. Compartment syndrome is a serious complication, but it develops over hours, whereas cardiac rhythm disturbances can be fatal instantly.
Choice C rationale
Evaluating electrolyte balance is necessary because extensive tissue damage from an electrical burn releases large amounts of potassium into the bloodstream, potentially causing hyperkalemia. Normal potassium ranges are 3.5 to 5.0 mEq/L. While hyperkalemia can lead to cardiac issues, the direct effect of the electrical current on the heart's conduction is the more immediate concern. Electrolyte monitoring is a vital part of the ongoing management but follows the initial assessment of the patient's active heart rhythm.
Choice D rationale
Checking for signs of infection is a long-term management goal rather than a critical aspect of the initial assessment. Infection usually takes days to develop. In the immediate aftermath of an electrical injury, the focus must be on the invisible internal damage caused by the current's path through the body. Although skin entry and exit wounds should be cleaned, the life-threatening risks are physiological and internal, necessitating a focus on vital organ function and hemodynamic stability.
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