A 30-year-old African American had surgery 6 months ago and the incision site is now raised, indurated, and shiny. This is most likely which type of tissue growth?
Melanoma
Keloid
Nevus
Angioma
The Correct Answer is B
A. Melanoma:
Melanoma is a type of skin cancer that arises from melanocytes, the cells that produce pigment (melanin) in the skin. Melanoma lesions are typically irregularly shaped, often asymmetrical, with varying shades of color (brown, black, tan, red, blue). They may have an uneven border and can evolve over time. Melanomas can be raised but are not typically described as indurated (firm) and shiny. They are also more commonly associated with changes in color, size, and shape.
B. Keloid:
A keloid is an abnormal overgrowth of scar tissue that extends beyond the boundaries of the original wound or incision site. Keloids are characterized by their raised appearance, firm or indurated texture, and shiny surface compared to the surrounding skin. They may also be darker than the surrounding skin due to increased collagen deposition. Keloids can develop months after an injury or surgery and are more common in individuals with darker skin tones, such as African Americans.
C. Nevus:
A nevus, commonly known as a mole or birthmark, is a benign growth of melanocytes or other skin cells. Nevus lesions can vary in appearance but are often flat or slightly raised, with a uniform color (brown, black, tan, or flesh-colored). They are usually not described as indurated or shiny. Nevus lesions can be present at birth (congenital nevus) or develop later in life (acquired nevus).
D. Angioma:
Angiomas are benign tumors that originate from blood vessels or lymphatic vessels. They can present as red or purplish raised lesions on the skin. Angiomas are typically not described as indurated or shiny. Common types of angiomas include cherry angiomas (small, red papules) and spider angiomas (red, spider-like lesions with central vessels).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. High-protein diet with vitamins and mineral supplements:
This choice indicates a good understanding of preventing pressure ulcers. High-protein diets are beneficial for tissue repair and wound healing. Adequate protein intake supports collagen synthesis, which is essential for maintaining skin integrity and healing wounds. Additionally, vitamins and mineral supplements can contribute to overall nutritional status and support tissue health.
B. Low-fat diet with whole grains and cereals and vitamin supplements:
While a low-fat diet and whole grains are generally healthy choices, they may not specifically address the needs of a patient at risk for pressure ulcers. Fat is important for skin health, and whole grains can contribute to overall nutrition, but protein and specific vitamins and minerals are more directly related to tissue repair and wound healing.
C. Vegetarian diet with nutritional supplements and fish oil capsules:
A vegetarian diet can be healthy, but it requires careful planning to ensure adequate protein intake, especially for tissue repair and wound healing. Nutritional supplements may help fill nutrient gaps, but specific attention to protein sources is crucial for preventing pressure ulcers. Fish oil capsules can provide omega-3 fatty acids, which may have some benefits for skin health.
D. Low cholesterol, high-fiber, low-carbohydrate diet:
This diet choice focuses more on cardiovascular health and weight management rather than addressing the needs of a patient at risk for pressure ulcers. While a balanced diet with adequate fiber can support overall health, protein intake and specific vitamins and minerals are more critical for skin integrity and wound healing.
Correct Answer is B
Explanation
A. Metabolic acidosis:
Metabolic acidosis is characterized by a low pH (<7.35) and a low bicarbonate level (<22 mEq/L) due to an excess of acids in the body or a loss of bicarbonate. However, in the given ABG values, the pH is low (7.22), but the bicarbonate level is elevated (28 mEq/L), which does not align with metabolic acidosis. Therefore, metabolic acidosis is not the correct interpretation in this case.
B. Respiratory acidosis:
Respiratory acidosis occurs when there is inadequate removal of carbon dioxide (CO2) by the lungs, leading to an accumulation of CO2 in the blood and a decrease in pH. In the ABG values provided, the pH is low (7.22), and the PaCO2 is elevated (68 mm Hg), indicating respiratory acidosis as the primary disturbance. This interpretation is supported by the elevated PaCO2 and the low pH, making it the correct choice based on the given data.
C. Respiratory alkalosis:
Respiratory alkalosis results from hyperventilation, leading to excessive elimination of CO2 and a decrease in PaCO2 levels. However, in the ABG values presented, the PaCO2 is elevated (68 mm Hg), which contradicts the expected decrease seen in respiratory alkalosis. Therefore, respiratory alkalosis is not the correct interpretation of the ABG values in this case.
D. Metabolic alkalosis:
Metabolic alkalosis is characterized by a high pH (>7.45) and a high bicarbonate level (>26 mEq/L) due to excessive loss of acids or an increase in bicarbonate levels. However, in the ABG values provided, the pH is low (7.22), and the bicarbonate level is elevated (28 mEq/L), which is not consistent with metabolic alkalosis. Therefore, metabolic alkalosis is not the correct interpretation based on the given data.
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