A nurse is caring for a client who has a peanut allergy. The client ate peanut butter and is now experiencing anaphylaxis. Which of the following physiological responses should the nurse expect to occur?
Blood pressure increases.
Blood vessels become more permeable.
Blood vessels constrict.
White blood cells are destroyed.
The Correct Answer is B
A. Blood pressure does not increase during anaphylaxis; instead, it typically decreases due to vasodilation and fluid leakage.
B. During anaphylaxis, blood vessels become more permeable, leading to the release of fluids into the tissues, which causes swelling and contributes to hypotension.
C. Blood vessels do not constrict during anaphylaxis; rather, they dilate as a part of the allergic response, resulting in decreased blood pressure.
D. While there is an immune response during anaphylaxis, white blood cells are not destroyed; rather, they are activated to respond to the allergen, leading to inflammation and other systemic effects.
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Correct Answer is B
Explanation
A. Respiratory alkalosis is characterized by a high pH and low PaCO2, which is not evident in this scenario where the pH is low and PaCO2 is elevated.
B. The low pH of 7.3 indicates acidemia, and the elevated PaCO2 of 50 mm Hg suggests respiratory acidosis, where the body is retaining carbon dioxide, leading to an increase in acidity.
C. Metabolic acidosis would present with a low pH and a normal or decreased PaCO2, which is not the case here since the PaCO2 is elevated.
D. Metabolic alkalosis would show a high pH and elevated HCO3 levels, which is not consistent with the given ABG results.
Correct Answer is B
Explanation
A. Gingivitis is a form of gum disease that can occur in anyone, but it is not specifically related to low CD4-T-cell counts associated with AIDS.
B. Candidiasis, also known as oral thrush, is a fungal infection caused by Candida species. Clients with a significantly decreased CD4-T-cell count are at high risk for opportunistic infections, including candidiasis, due to their compromised immune systems.
C. Xerostomia refers to dry mouth, which can occur for various reasons but is not specifically an infectious condition linked to low CD4 counts.
D. Halitosis, or bad breath, can result from several factors, including poor oral hygiene or underlying health issues, but is not specifically linked to the immune status of a client with AIDS.