A nurse is caring for a patient who has the following arterial blood values: pH 7.12, PaO 56 mm Hg, PaCO 65 mm Hg, and HCO - 22 mEq/L (22 mmol/L). Which clinical situation does the nurse correlate with these values?

A. Excessive scarring:

Excessive scarring is not an example of a first-degree burn. It typically occurs in more severe burns that affect deeper layers of the skin, such as second-degree or third-degree burns. Second-degree burns extend into the dermis, while third-degree burns damage all layers of the skin and can lead to significant scarring. First-degree burns, on the other hand, only affect the outer layer of the skin (epidermis) and usually do not result in excessive scarring.

B. Blistering from flames:

Blistering from flames is more characteristic of a second-degree burn rather than a first-degree burn. Second-degree burns involve damage to both the epidermis and part of the dermis, which can result in blister formation. These burns are often caused by direct contact with flames, hot liquids, or steam.

C. Blackened dead skin:

Blackened dead skin is indicative of a third-degree burn, which is the most severe type of burn. Third-degree burns damage all layers of the skin, including the epidermis, dermis, and sometimes underlying tissues. The skin may appear charred or blackened, and these burns often require medical intervention, such as skin grafting, due to the extent of tissue damage.

D. A sunburn:

A sunburn is an example of a first-degree burn. It occurs due to overexposure to ultraviolet (UV) radiation from the sun, leading to redness, pain, and mild swelling of the skin. First-degree burns affect only the outer layer of the skin (epidermis) and typically heal within a few days without significant scarring or blistering. Applying soothing lotions, staying hydrated, and avoiding further sun exposure can help manage sunburns.

1. A. How many people live in your home?

   This question pertains to social and environmental factors but is not directly related to assessing skin inflammation on the chest. While social factors can impact overall health, such as stress levels or exposure to infectious agents, the number of people living in the client's home is unlikely to be directly related to a new skin inflammation unless there are specific circumstances, such as sharing personal care products or close contact with others who have similar skin issues.

   B. Did you have a recent exposure to irritants?

   This question is highly relevant to assessing a new skin inflammation on the chest. Exposure to irritants or allergens can trigger or worsen skin conditions, such as contact dermatitis or allergic reactions. By asking about recent exposure to potential irritants like new detergents, soaps, fabrics, chemicals, or environmental factors, the nurse can gather important information to identify possible triggers for the skin inflammation.

   C. Is nausea associated with your rash?

   Nausea is typically not directly associated with a skin rash or inflammation unless there is a systemic condition or allergic reaction causing both symptoms. While it's important to assess for any systemic signs or symptoms that may be related to the skin condition, such as fever or malaise, specifically asking about nausea may not provide relevant information about the skin inflammation on the chest.

   D. What is your body mass index?

   Body mass index (BMI) is a measure of body weight relative to height and is not directly related to assessing a new skin inflammation on the chest. While obesity or changes in body weight can sometimes contribute to skin issues, such as friction-related dermatitis or hormonal changes affecting skin health, BMI alone is not a primary assessment parameter for localized skin conditions unless there are specific concerns related to weight-related skin problems.