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. Which intervention should the nurse include in the plan of care for a client who has a chest tube due to hemothorax?

• A. Keep the arm and shoulder of the affected side immobile at all times.
• B. Encourage the client to breathe deeply and cough at frequent intervals.
• C. Maintain the pleura vac slightly above the chest level.
• D. Ensure there is no fluctuation in the water seal.

Correct answer: B

Rationale: Encouraging deep breathing and coughing is vital for a client with a chest tube due to hemothorax as it helps prevent atelectasis and promotes lung expansion. Keeping the arm and shoulder immobile (Choice A) is not necessary for chest tube management. Maintaining the pleura vac slightly above the chest level (Choice C) is incorrect as the pleura vac should be kept below the chest level to facilitate drainage. Ensuring no fluctuation in the water seal (Choice D) is important, but it is not the priority intervention when compared to promoting lung expansion through deep breathing and coughing.

3. A client is admitted to the emergency department with symptoms of arm numbness, chest pain, and nausea/vomiting. The examining healthcare provider believes that the client has experienced an acute myocardial infarction (AMI) within the past three hours and would like to initiate tissue plasminogen activator (tPA) therapy. Which client history findings contraindicate the use of tPA?

• A. Treats hypoglycemia with an oral hypoglycemic agent.
• B. Had a cerebrovascular hemorrhage 2 months ago.
• C. Current age 65, father died of MI at 55.
• D. Report of being intolerant of medication that contains aspirin.

Correct answer: B

Rationale: A history of cerebrovascular hemorrhage is a contraindication for tPA therapy due to the risk of bleeding. Choice A is incorrect because treating hypoglycemia with an oral hypoglycemic agent is not a contraindication for tPA therapy. Choice C is incorrect as age and family history of MI do not contraindicate the use of tPA. Choice D is incorrect as being intolerant of medication containing aspirin is not a contraindication for tPA therapy.

4. The nurse is caring for a child who has been diagnosed with attention deficit hyperactivity disorder (ADHD). What is the most important intervention for the nurse?

• A. Help the child enroll in a special education class.
• B. Allay any feelings of guilt the parents may have.
• C. Explain to the parents that medications are lifelong.
• D. Teach the parents how to set limits.

Correct answer: B

Rationale: The most important intervention for the nurse in caring for a child with ADHD is to allay any feelings of guilt the parents may have. Parents of children with ADHD often experience guilt or self-blame, thinking they are responsible for their child's condition. By addressing and alleviating these feelings, the nurse can support the parents in a crucial way. Choice A is not the most important intervention because enrolling the child in a special education class might be a consideration but does not address the emotional needs of the parents. Choice C is incorrect because stating that medications are lifelong may cause unnecessary distress to the parents. Choice D is also not the most important intervention as setting limits is important but not as critical as addressing parental guilt and emotions.

5. The nurse instructs the mother of a child with a ventricular septal defect that she can expect the child to become cyanotic when the child does what?

• A. Experiences an elevation in temperature.
• B. Sleeps on the left side.
• C. Cries vigorously.
• D. Eats.

Correct answer: C

Rationale: The correct answer is C: Cries vigorously. When the child cries vigorously, it increases the pressure in the right ventricle, allowing unoxygenated blood to enter the circulating volume, leading to cyanosis. This occurs due to the shunting of blood from the right side of the heart to the left side through the ventricular septal defect. Choices A, B, and D are incorrect because they do not directly impact the pressure in the right ventricle, which is crucial in causing cyanosis in this scenario.

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