Nursing Elites

1. While assessing a critically ill client in the emergency department, the nurse notes on the cardiac monitor an R-on-T premature ventricular beat that develops into ventricular tachycardia (VT). Immediately, the client became unresponsive. The nurse knows that based on pathophysiologic principles, the most likely cause of the unresponsiveness is:

• A. metabolic acidosis that occurs spontaneously following any dysrhythmias.
• B. interruption of the blood/oxygen supply to the brain.
• C. massive cerebrovascular accident (CVA) resulting from increased perfusion.
• D. a blood clot coming from the heart and occluding the carotid arteries.

Correct answer: B

Rationale: The correct answer is B. Ventricular tachycardia (VT) can disrupt the normal heart function, leading to a decreased cardiac output. This decreased output can interrupt the blood supply to the brain, causing the client to become unresponsive. Metabolic acidosis (Choice A) is not the most likely cause of unresponsiveness in this scenario. A massive cerebrovascular accident (CVA) (Choice C) would not result from increased perfusion. A blood clot occluding the carotid arteries (Choice D) may lead to a stroke but is not the most likely cause of sudden unresponsiveness in this situation.

2. An immunology nurse is caring for a patient. While planning care, which principle will the nurse remember? The primary role of IgA1 is to prevent infections in the:

• A. Blood
• B. Kidneys
• C. Lungs
• D. Mucous membranes

Correct answer: A

Rationale: The correct answer is A: Blood. IgA1 is mainly found in the blood and plays a crucial role in preventing infections by neutralizing pathogens. While IgA1 can be present in other body areas, its primary function is associated with preventing infections in the blood. Choices B, C, and D are incorrect as IgA1 is not primarily associated with the kidneys, lungs, or mucous membranes.

3. A nurse is caring for a client with lung cancer who is experiencing dyspnea. Which intervention is most appropriate?

• A. Administer a cough suppressant to reduce discomfort.
• B. Encourage the client to lie flat to ease breathing.
• C. Provide supplemental oxygen therapy.
• D. Encourage deep breathing and coughing exercises.

Correct answer: C

Rationale: The most appropriate intervention for a client with lung cancer experiencing dyspnea is to provide supplemental oxygen therapy. This intervention helps improve oxygenation and alleviate breathing difficulties. Administering a cough suppressant (Choice A) may not address the underlying cause of dyspnea and can potentially depress the respiratory drive. Encouraging the client to lie flat (Choice B) can worsen dyspnea by reducing lung expansion. Encouraging deep breathing and coughing exercises (Choice D) may be beneficial in some situations, but when a client is experiencing dyspnea due to lung cancer, supplemental oxygen therapy is the priority to improve oxygen levels and alleviate breathing difficulty.

4. Which of the following chronic inflammatory skin disorders is characterized by angiogenesis, immune cell activation (particularly T cells), and keratinocyte proliferation?

• A. Psoriasis
• B. Melanoma
• C. Atopic dermatitis
• D. Urticaria

Correct answer: A

Rationale: Psoriasis is the correct answer. Psoriasis is a chronic inflammatory skin disorder characterized by angiogenesis, immune cell activation (particularly T cells), and keratinocyte proliferation. Choice B, Melanoma, is a type of skin cancer involving melanocytes, not characterized by the features mentioned. Choice C, Atopic dermatitis, is a different inflammatory skin condition associated with pruritus and eczematous lesions, not primarily characterized by angiogenesis. Choice D, Urticaria, is a skin condition characterized by hives and wheals due to histamine release, not typically involving the features mentioned in the question.

5. During the cellular stage of acute inflammation, which type of cells arrive first and in great numbers?

• A. Basophils
• B. Lymphocytes
• C. Neutrophils
• D. Platelets

Correct answer: C

Rationale: During the cellular stage of acute inflammation, neutrophils are the first responders. Neutrophils arrive at the site of injury in large numbers to combat pathogens and remove debris. Basophils and lymphocytes are also involved in the inflammatory response, but they are not the first to arrive. Platelets play a role in hemostasis and blood clotting, rather than being the primary cells involved in the initial inflammatory response.

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