Nursing Elites

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

• A. They involve antigen-antibody complexes.
• B. They are mediated by T cells and do not involve antibodies.
• C. They result in immediate allergic reactions.
• D. They are the least severe form of hypersensitivity.

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. A client with deep vein thrombosis (DVT) is being treated with warfarin. Which dietary instruction should the nurse provide?

• A. Avoid foods high in vitamin C
• B. Increase intake of green leafy vegetables
• C. Limit intake of foods high in vitamin K
• D. Avoid dairy products

Correct answer: C

Rationale: The correct answer is C: 'Limit intake of foods high in vitamin K'. Vitamin K can interfere with the effectiveness of warfarin, an anticoagulant medication commonly used to treat conditions like deep vein thrombosis (DVT). Patients on warfarin should maintain a consistent intake of vitamin K-rich foods and be monitored closely. Choices A, B, and D are incorrect because avoiding foods high in vitamin C, increasing intake of green leafy vegetables, and avoiding dairy products are not essential dietary instructions for a client on warfarin therapy for DVT.

3. When performing postural drainage on a client with chronic obstructive pulmonary disease (COPD), which approach should the nurse use?

• A. Obtain arterial blood gases (ABGs) before the procedure.
• B. Explain that the client may be positioned in five different ways.
• C. Assist the patient into a position that will allow gravity to move secretions.
• D. Encourage the client to practice deep breathing throughout the procedure.

Correct answer: C

Rationale: The correct approach when performing postural drainage on a client with COPD is to assist the patient into a position that allows gravity to help move secretions. This position helps drain secretions from specific segments of the lungs. Obtaining arterial blood gases (Choice A) is not directly related to postural drainage. While the client may be placed in multiple positions during postural drainage, the key is to position them to facilitate the movement of secretions, not just any five positions as mentioned in Choice B. Encouraging deep breathing (Choice D) is a good nursing intervention for overall respiratory health but is not specifically related to the technique of postural drainage.

4. A client with asthma is prescribed a metered-dose inhaler (MDI) with albuterol. Which instruction is essential for the nurse to provide?

• A. Use the inhaler only before bedtime
• B. Shake the inhaler well before use
• C. Exhale fully before inhaling the medication
• D. Take two puffs every hour

Correct answer: B

Rationale: The correct answer is to 'Shake the inhaler well before use.' This instruction is crucial as shaking the inhaler ensures the proper mixing of the medication, which is essential for its effective delivery. Option A is incorrect because using the inhaler only before bedtime may not provide adequate relief during the day. Option C is incorrect as exhaling fully is a good practice but not the most essential instruction. Option D is incorrect as taking two puffs every hour may exceed the recommended dosage and lead to adverse effects.

5. Which nursing intervention promotes achievement of the goal 'optimal mobility' for a client who had a total hip replacement 8 hours ago?

• A. Encourage the client to use an abductor pillow when ambulating.
• B. Teach the client to perform leg exercises in bed.
• C. Assist the client to sit at the edge of the bed.
• D. Assist the client to turn while an abductor pillow is between the legs.

Correct answer: D

Rationale: Assisting the client to turn while an abductor pillow is between the legs is the correct intervention to promote optimal mobility for a client who had a total hip replacement 8 hours ago. Using an abductor pillow helps maintain hip alignment and prevents dislocation, which are crucial considerations in the early postoperative period. Encouraging the client to use an abductor pillow when turning is more beneficial compared to the other options: teaching leg exercises in bed, encouraging the use of a walker when ambulating, or assisting the client to sit at the edge of the bed, as these interventions may not directly address the specific needs of a client after a total hip replacement.

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