Correct Answer: A

Rationale: The correct answer is A because during the first phase of the nursing process (assessment), the nurse collects a comprehensive database of information about the patient's health status and needs. This data forms the foundation for identifying nursing diagnoses, planning interventions, and evaluating outcomes. Choices B, C, and D involve actions that occur in the subsequent phases of the nursing process (diagnosis, planning, and evaluation), not in the initial assessment phase. Therefore, A is the correct choice for the first phase.

Correct Answer: C

Rationale: The correct answer is C: Halos around lights. This symptom is specific to acute angle-closure glaucoma due to increased intraocular pressure causing corneal edema. Halos around lights are caused by light diffraction through edematous cornea. Flashing lights and lens opacity are not typically associated with acute angle-closure glaucoma. Flashing lights may be seen in retinal detachment, while lens opacity is more commonly seen in cataracts.

Correct Answer: D

Rationale: The correct answer is D: Immediately stop the transfusion, infuse normal saline solution, notify the blood bank. Rationale: 1. Stop the transfusion immediately to prevent further complications from the hemolytic reaction. 2. Infuse normal saline solution to maintain adequate hydration and support kidney function. 3. Notify the blood bank to report the adverse reaction and to return the blood products for further investigation and testing. Summary of other choices: A: Incorrect because infusing dextrose 5% in water (D5W) is not indicated for treating a hemolytic reaction. Calling the physician is important, but stopping the transfusion and notifying the blood bank are more critical. B: Incorrect because slowing the transfusion may not be sufficient to manage the acute hemolytic reaction effectively. C: Incorrect because administering antihistamines is not the appropriate treatment for a hemolytic reaction. Stopping the transfusion and notifying the blood bank are more urgent actions.

Correct Answer: C

Rationale: The correct answer is C: Slowing ventilation. The lungs regulate acid-base balance by controlling carbon dioxide levels through ventilation. Increasing ventilation helps expel excess carbon dioxide, thus regulating pH. Slowing ventilation would lead to CO2 buildup and an imbalance in acid-base levels. Excreting HCO3- into the blood (choice A) helps maintain pH, while increasing ventilation (choice D) aids in removing excess CO2. Therefore, slowing ventilation is the exception as it would disrupt the acid-base balance by not effectively regulating carbon dioxide levels.

Correct Answer: C

Rationale: Step-by-step rationale for choice C: Angioedema differs from urticaria as it involves deeper swelling in the dermis and subcutaneous tissue, leading to a more profound and firm texture. This contrasts with urticaria, which presents as superficial, raised wheals on the skin. Therefore, option C is correct. Summary of other choices: A: Angioedema is not typically associated with intense itching, so it is not more pruritic than urticaria. B: Angioedema does not have small, fluid-filled vesicles like in allergic contact dermatitis. D: Angioedema tends to last longer than urticaria, making this statement incorrect.