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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Furosemide is a diuretic and is not indicated in the acute management of anaphylaxis.
B. Methylprednisolone is a corticosteroid that may be used later to reduce inflammation but is not the first-line treatment in anaphylaxis.
C. Dobutamine is a medication used to treat heart failure and shock but does not address the acute allergic reaction.
D. Epinephrine is the first-line treatment for anaphylactic shock, as it acts quickly to reverse severe allergic reactions by causing vasoconstriction, bronchodilation, and inhibiting further release of mediators from mast cells.
Correct Answer is ["A","C"]
Explanation
A. Orthostatic hypotension is a common sign of hypovolemia, as the lack of fluid volume can lead to a drop in blood pressure when changing positions.
B. Bradycardia is not typically associated with fluid volume deficit; tachycardia is more common as the body tries to compensate for low blood volume.
C. Decreased skin turgor is a classic sign of dehydration and fluid volume deficit, indicating reduced skin elasticity.
D. Weight gain is associated with fluid volume overload, not deficit.
E. Pulmonary edema is related to fluid volume overload or congestive heart failure, not hypovolemia.
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