A nurse in an allergy clinic is caring for a client who has a history of seasonal allergy symptoms. The client had a radioallergosorbent test (RAST) completed on a previous visit. The nurse should recognize that an elevation in which of the following immunoglobulins indicates a positive result?

Immunoglobulin E (IgE)

Immunoglobulin M (IgM)

Immunoglobulin A (IgA)

Immunoglobulin G (IgG)

Answer and Explanation

The Correct Answer is A

Choice A reason: Immunoglobulin E (IgE) is associated with allergic reactions. A RAST test measures the level of allergen specific IgE antibodies in the blood. An elevation in IgE indicates sensitization to a particular allergen and a positive result for the allergy.

Choice B reason: Immunoglobulin M (IgM) is usually the first antibody produced by the immune system when it detects an infection. It is not typically associated with the detection of allergies.

Choice C reason: Immunoglobulin A (IgA) plays a critical role in mucosal immunity and is found in high concentrations in the mucous membranes, particularly those lining the respiratory passages and the gastrointestinal tract, but it is not used as an indicator in RAST testing for allergies.

Choice D reason: Immunoglobulin G (IgG) is the most abundant type of antibody and is involved in the recognition and removal of pathogens. It is not specific to allergic response detection in RAST testing.

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Correct Answer is B

Explanation

Choice A reason: Hypernatremia is not typically associated with prerenal AKI. Prerenal AKI is characterized by conditions that reduce blood flow to the kidneys, not directly causing high sodium levels.

Choice B reason: This choice is correct. Hyperkalemia, which is a high level of potassium in the blood, is a common electrolyte imbalance seen in prerenal AKI due to decreased kidney function and the inability to excrete potassium.

Choice C reason: Hypophosphatemia, or low levels of phosphate in the blood, is not a typical finding in prerenal AKI.

Choice D reason: Hypercalcemia, or high levels of calcium in the blood, is not commonly associated with prerenal AKI. It is more often related to other conditions such as hyperparathyroidism or malignancy.

A. Are you taking a multivitamin? B. Have you had a recent influenza infection? C. Have you traveled overseas recently? D. Do you have a history of chronic alcohol abuse?

Correct Answer is B

Explanation

Choice A reason: Asking about multivitamin intake is not directly relevant to GBS, as the syndrome is not known to be caused by vitamin deficiencies or related to nutritional status.

Choice B reason: A recent influenza infection is relevant because GBS is often preceded by an infection, such as a respiratory or gastrointestinal viral infection. The immune system's response to this infection may mistakenly attack peripheral nerves, leading to GBS.

Choice C reason: While travel history is important in assessing exposure to infectious diseases, it is less specific than asking about recent infections. GBS can occur after exposure to certain viruses or bacteria, which can be contracted without overseas travel.

Choice D reason: Chronic alcohol abuse is a risk factor for various neurological conditions, but it is not a typical precursor to GBS. The syndrome is more commonly associated with immune responses to infections.

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A nurse in an allergy clinic is caring for a client who has a history of seasonal allergy symptoms. The client had a radioallergosorbent test (RAST) completed on a previous visit. The nurse should recognize that an elevation in which of the following immunoglobulins indicates a positive result?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

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Correct Answer is B

Explanation

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