how are type iv hypersensitivity reactions different from all other types i ii or iii of hypersensitivity reactions
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Medical Surgical Assignment Exam HESI Quizlet

1. How are type IV hypersensitivity reactions different from all other types (I, II, or III) of hypersensitivity reactions?

Correct answer: B

Rationale: Type IV hypersensitivity reactions are mediated by T cells and cytokine release, leading to delayed reactions, unlike types I, II, and III, which involve antibodies. Choice A is incorrect because type IV reactions do not involve antigen-antibody complexes. Choice C is incorrect as type IV reactions do not result in immediate allergic reactions. Choice D is incorrect as type IV reactions are not the least severe form of hypersensitivity; in fact, they are known to cause significant tissue damage and inflammation.

2. What information should the nurse include in the teaching plan of a client diagnosed with GERD?

Correct answer: C

Rationale: The correct answer is C: 'Minimize symptoms by wearing loose, comfortable clothing.' Wearing loose, comfortable clothing can help reduce pressure on the abdomen, which can alleviate GERD symptoms. Option A is incorrect as sleeping without using pillows is not a recommended practice for managing GERD. Option B is incorrect because it suggests adjusting food intake to five small meals throughout the day instead of three full meals with no snacks, which may not be suitable for everyone with GERD. Option D is incorrect as avoiding participation in any aerobic exercise program is not a standard recommendation for managing GERD; in fact, engaging in low-impact exercises like walking or swimming can be beneficial.

3. When is the best time to administer pancreatic enzyme replacement?

Correct answer: A

Rationale: The correct answer is to administer pancreatic enzyme replacement before meals and snacks. This timing is crucial as it allows the enzymes to assist in the digestion of carbohydrates, fats, and proteins that are consumed during the meals. Administering the replacement after meals and snacks would not be effective as the enzymes need to be present in the digestive system when food is consumed. Options B and C are incorrect as they do not align with the optimal timing for pancreatic enzyme replacement administration.

4. The nurse is teaching a client with glomerulonephritis about self-care. Which dietary recommendations should the nurse encourage the client to follow?

Correct answer: B

Rationale: The correct answer is B: Restrict protein intake by limiting meats and other high-protein foods. In glomerulonephritis, reducing protein intake helps to lower the workload on the kidneys, as excessive protein can lead to increased production of waste products that the kidneys must filter. This restriction can help prevent further damage to the kidneys. Choices A, C, and D are incorrect because: A) Increasing high-fiber foods like bran cereal is beneficial for other conditions but not specific to glomerulonephritis. C) Limiting oral fluid intake to 500ml per day is not appropriate as fluid restrictions are usually individualized based on the client's condition and kidney function. D) Increasing potassium-rich foods like bananas and cantaloupe may not be suitable for all clients with glomerulonephritis, as potassium levels can be affected in kidney disease and individual needs may vary.

5. Ten hours following thrombolysis for an ST elevation myocardial infarction (STEMI), a client is receiving a lidocaine infusion for isolated runs of ventricular tachycardia. Which finding should the nurse document in the EMR as a therapeutic response to the lidocaine infusion?

Correct answer: D

Rationale: The correct answer is D. Decreased frequency of ventricular tachycardia (VT) episodes indicates that the lidocaine infusion is effectively managing the ventricular tachycardia. Stabilization of BP ranges (choice A) may not directly correlate with the therapeutic response to lidocaine for VT. Cessation of chest pain (choice B) may indicate pain relief but does not specifically address the effectiveness of lidocaine for VT. Reduced heart rate (choice C) is not a direct indicator of the response to lidocaine for managing VT.

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