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 A

Explanation

Choice A reason: Serum creatinine is a waste product from the normal breakdown of muscle tissue. A level of 1.8 mg/dL is higher than the normal range (0.61.2 mg/dL for females), indicating impaired kidney function and an increased risk of AKI.

Choice B reason: A magnesium level of 2.0 mEq/L is within the normal range (1.72.2 mEq/L) and does not typically indicate an increased risk of AKI.

Choice C reason: A BUN level of 20 mg/dL is within the normal range (720 mg/dL) and does not suggest an increased risk of AKI by itself.

Choice D reason: A serum osmolality of 290 mOsm/kg H2O is within the normal range (275295 mOsm/kg H2O) and does not indicate an increased risk of AKI.

A. Medication administration record B. Identification wristband C. Order sheet D. Chart

Correct Answer is B

Explanation

Choice A reason: The medication administration record is an important document, but it is not the primary source for verification before administering blood products. It is used to record the administration after the fact.

Choice B reason: The identification wristband is the priority source for verification. It contains the client's essential information, such as name and hospital ID, which must match the blood product label to ensure patient safety⁸.

Choice C reason: The order sheet contains the physician's orders, which is crucial for verifying what has been prescribed but is secondary to the identification wristband for the actual administration process.

Choice D reason: The chart contains a comprehensive record of the client's medical history and care but is not the primary source for verification when administering blood products.

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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 A

Explanation

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Correct Answer is B

Explanation

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