A nurse is completing an admission assessment of a client. Which of the following findings should the nurse identify as a stage 2 pressure injury?
A defined area of cool, boggy skin.
A shallow crater involving the epidermis.
Reddened area that does not blanch.
Undermining or tunneling of the skin.
The Correct Answer is B
Choice A rationale:
A defined area of cool, boggy skin is not indicative of a stage 2 pressure injury. Stage 2 pressure injuries involve partial-thickness skin loss, usually appearing as a shallow open ulcer with a red-pink wound bed, without slough or bruising.
Choice B rationale:
A shallow crater involving the epidermis is characteristic of a stage 2 pressure injury. It presents as a partial-thickness skin loss with the loss of the epidermis, and the wound may be superficial and appear as an abrasion, blister, or shallow ulcer.
Choice C rationale:
The reddened area that does not blanch is more indicative of an early-stage pressure injury (Stage 1). In Stage 1, the skin remains intact, but there is non-blanch-able erythema indicating damage to the skin and underlying tissue.
Choice D rationale:
Undermining or tunneling of the skin is not specific to stage 2 pressure injuries. These features may be observed in more advanced stages of pressure injuries, such as stages 3 and 4, where there is full-thickness skin loss with damage to the subcutaneous tissue and underlying structures.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
The client's ABG values show a pH of 7.48, PCO2 of 30 mm Hg, HCO3 of 24 mEq/L, and PaO2 of 85 mm Hg. The elevated pH and decreased PCO2 (respiratory component) suggest respiratory alkalosis. Respiratory alkalosis occurs when there is excessive ventilation, leading to a decrease in carbon dioxide levels (hypocapnia) and subsequent alkalosis.
Choice B rationale:
Respiratory acidosis is characterized by an elevated PCO2 and decreased pH. In this case, the client's PCO2 is decreased, indicating respiratory alkalosis rather than respiratory acidosis.
Choice C rationale:
Metabolic alkalosis is characterized by an elevated HCO3 (bicarbonate) level and an increased pH. The client's HCO3 level is within the normal range, making metabolic alkalosis an incorrect identification.
Choice D rationale:
Metabolic acidosis is characterized by a decreased HCO3 level and a decreased pH. The client's HCO3 level is within the normal range, ruling out metabolic acidosis as the acid-base imbalance in this case.
Correct Answer is D
Explanation
Choice A rationale:
A PaO2 value of 86 mm Hg is within the normal range (80-100 mm Hg) and does not indicate respiratory acidosis. PaO2 measures the partial pressure of oxygen in arterial blood.
Choice B rationale:
A pH of 7.4 is within the normal range (7.35-7.45) and does not indicate respiratory acidosis. The pH reflects the acidity or alkalinity of the blood.
Choice C rationale:
An HCO3 (bicarbonate) level of 16 mEq/L is within the normal range (22-28 mEq/L) and does not indicate respiratory acidosis. HCO3 is a measure of the metabolic component of the body's acid-base balance.
Choice D rationale:
This is the correct choice. A PaCO2 value of 58 mm Hg is elevated and indicates respiratory acidosis. PaCO2 measures the partial pressure of carbon dioxide in arterial blood, and an elevated value suggests the presence of excess carbon dioxide, leading to acidosis.
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