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)
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Neurological checks are essential after spinal surgery to monitor for any changes or deterioration in the patient's neurological status. The frequency of these checks can vary based on the patient's condition, but a common standard is to perform them every 4 hours or sooner. However, in some cases, especially immediately post operation, checks may be required more frequently, such as every 2 hours, to ensure any complications are identified and managed promptly.
Choice B reason: While mobilization is an important aspect of postsurgical care to prevent complications such as deep vein thrombosis, positioning a patient in a chair every 2 hours may not be appropriate immediately following spinal surgery. The patient's mobility and pain level must be assessed, and activities should be gradually increased as tolerated.
Choice C reason: Inspecting the spinal dressing is important to identify signs of infection or complications. However, clear drainage is not typically expected and could indicate cerebrospinal fluid leakage, which requires immediate medical attention.
Choice D reason: The term "criminal checks" is not relevant to nursing care and seems to be a typographical error. The nurse's focus should be on clinical assessments and interventions related to the patient's health status.
Correct Answer is B
Explanation
Choice A reason: Applying a tourniquet just below the elbow is not recommended as the first line of action for a deep laceration unless there is life-threatening hemorrhaging that cannot be controlled by direct pressure. Tourniquets are used as a last resort because they can cause tissue damage.
Choice B reason: Elevating the limb and applying ice can help reduce bleeding and swelling. Elevation uses gravity to help reduce blood flow to the injury, and the cold from the ice constricts blood vessels, further helping to control bleeding and reduce swelling.
Choice C reason: Cleaning the wound is important, but it should not be the first action taken. The initial focus should be on stopping the bleeding. Once bleeding is controlled, the wound can be cleaned to prevent infection.
Choice D reason: Applying pressure directly to the wound with a clean cloth or bandage is the first step in controlling bleeding. However, the question specifies applying pressure above the wound, which would not be effective in controlling bleeding from the wound itself.
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