A client receiving an IV medication suddenly develops generalized hives, facial swelling, and difficulty breathing. The nurse should suspect which type of hypersensitivity reaction?
Type I (Immediate) hypersensitivity
Type II (Cytotoxic) hypersensitivity
Type III (Immune Complex-Mediated) hypersensitivity
Type IV (Delayed) hypersensitivity
The Correct Answer is A
A) This choice is correct. The client's sudden onset of hives, facial swelling, and difficulty breathing suggests a Type I (Immediate) hypersensitivity reaction, also known as anaphylaxis. Type I hypersensitivity reactions occur within minutes to hours after exposure to an allergen, leading to the release of histamine and other inflammatory mediators.
B) This choice is incorrect because Type II (Cytotoxic) hypersensitivity reactions involve antibodies attacking specific cells or tissues, leading to cell destruction. They are not associated with the symptoms described by the client.
C) This choice is incorrect because Type III (Immune Complex-Mediated) hypersensitivity reactions involve the formation of immune complexes that deposit in tissues and trigger inflammation, but they do not typically present with generalized hives and facial swelling.
D) This choice is incorrect because Type IV (Delayed) hypersensitivity reactions occur 24 to 72 hours after exposure to an allergen and are mediated by T cells, leading to localized skin reactions like contact dermatitis. They are not associated with the rapid onset of symptoms described by the client.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) This choice is incorrect because using the same insertion site for all IV catheter changes can lead to complications such as phlebitis and infiltration due to repetitive trauma to the vein.
B) This choice is incorrect because changing the IV catheter every 72 hours as per policy may not be necessary unless the catheter is no longer functioning properly or the site shows signs of complications. Changing the catheter prematurely can increase the risk of complications.
C) This choice is correct. Rotating the IV insertion site with each catheter change helps to distribute the risk of complications across multiple sites and allows previously used sites time to heal and recover.
D) This choice is incorrect because administering medications in large volumes to minimize insertion frequency is not a safe practice. Medication volumes should be appropriate for the client's needs, and insertion frequency should follow evidence-based guidelines.
Correct Answer is C
Explanation
A) This choice is incorrect because phlebitis typically presents with redness and warmth around the insertion site, but it does not cause a painful, red streak along the arm.
B) This choice is incorrect because infiltration is characterized by swelling and blanching of the skin near the IV site, not a painful, red streak.
C) This choice is correct. The client's symptoms of a painful, warm, and red streak along the arm near the IV site are indicative of thrombophlebitis, which is the inflammation of a vein associated with the formation of a blood clot.
D) This choice is incorrect because fluid overload is not associated with a painful, warm, and red streak along the arm.
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