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 who has a history of unstable angina is admitted to the emergency department with chest pain.

• A. Chest pain relieved by rest.
• B. Chest pain unrelieved after taking 3 sequential nitroglycerin tablets.
• C. Chest pain occurring only with exertion.
• D. Chest pain lasting less than 5 minutes.

Correct answer: B

Rationale: Chest pain unrelieved after taking 3 sequential nitroglycerin tablets indicates a possible myocardial infarction and requires immediate medical attention.

3. A client with hyperkalemia is being treated in the emergency department. Which medication should the nurse prepare to administer?

• A. Potassium chloride
• B. Calcium gluconate
• C. Magnesium sulfate
• D. Sodium bicarbonate

Correct answer: B

Rationale: The correct answer is B, Calcium gluconate. In hyperkalemia, where potassium levels are elevated, calcium gluconate is administered to stabilize the myocardial cell membrane and protect the heart from potential arrhythmias. Potassium chloride (choice A) would worsen the condition by further increasing potassium levels. Magnesium sulfate (choice C) is not the primary treatment for hyperkalemia. Sodium bicarbonate (choice D) is used in metabolic acidosis, not specifically for hyperkalemia.

4. A young adult male is admitted to the intensive care unit with multiple rib fractures and severe pulmonary contusions after falling 20 feet from a rooftop. The Chest X-ray suggests acute Respiratory distress Syndrome. Which assessment finding warrants immediate intervention by the Nurse?

• A. Apical pulse 58 bpm.
• B. Core body temperature 100.8°F.
• C. Tachypnea with dyspnea.
• D. Multiple bruises over the chest area.

Correct answer: C

Rationale: In a patient with multiple rib fractures, severe pulmonary contusions, and possible acute Respiratory Distress Syndrome (ARDS), tachypnea (rapid breathing) with dyspnea (shortness of breath) is a critical sign of respiratory distress that warrants immediate intervention by the nurse. Tachypnea and dyspnea indicate inadequate oxygenation and ventilation, which can lead to respiratory failure if not addressed promptly. The other options, such as apical pulse rate, core body temperature, and bruises over the chest area, are important assessments but do not directly indicate the immediate need for intervention in a patient with respiratory distress.

5. A client is admitted to the medical unit during an exacerbation of systemic lupus erythematosus (SLE). It is most important to report which assessment finding to the healthcare provider?

• A. Low-grade fever.
• B. Muscle atrophy.
• C. Hematuria.
• D. Joint pain.

Correct answer: C

Rationale: Hematuria is the most important assessment finding to report to the healthcare provider in a client with SLE during an exacerbation. Hematuria indicates kidney involvement, a serious complication of SLE that requires prompt medical attention. While low-grade fever, muscle atrophy, and joint pain are symptoms that can occur in SLE, hematuria signifies potential renal damage, which is a critical concern in SLE exacerbations.

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