Correct Answer: C

Rationale: The correct answer is C: unfreezing. Unfreezing is the initial stage in Lewin's planned change model where individuals become open to change by recognizing the need for it. During this stage, the nurse identifies the need for change, plans strategies to implement it, and works on overcoming resistance by ensuring that the driving forces (reasons for change) outweigh the restraining forces (barriers to change). Refreezing (A) is the final stage where the changes are reinforced and integrated into the organization. Movement (B) is the stage where actual change occurs, and in activism (D) is not a recognized stage in Lewin's model.

Correct Answer: A

Rationale: Correct Answer: A: To help control the intra-ocular pressure Rationale: 1. Eye surgery can lead to increased intra-ocular pressure. 2. Instilling eye drops can help reduce this pressure post-surgery. 3. Controlling intra-ocular pressure is crucial for proper healing and preventing complications. 4. Eye drops for infection (B) or pupil dilation/constriction (C, D) are not primary concerns post-eye surgery.

Correct Answer: B

Rationale: The correct answer is B: Neglect. Failure to supervise a child adequately falls under the category of neglect, which is the failure to provide for a child's basic needs such as supervision, food, shelter, and medical care. In this scenario, the lack of proper supervision constitutes neglect as it puts the child at risk of harm or danger. Emotional abuse (A) involves harming a child's emotional well-being through actions like verbal abuse. Sexual abuse (C) involves inappropriate sexual behavior towards a child. Physical abuse (D) involves causing physical harm or injury to a child. In this case, the failure to supervise the child adequately is best categorized as neglect, making choice B the correct answer.

Correct Answer: B

Rationale: The correct answer is B: Disseminated intravascular coagulation (DIC). In DIC, there is widespread activation of coagulation leading to consumption of clotting factors, resulting in prolonged PT and aPTT, low fibrinogen levels, and elevated D-dimer. This pattern matches the laboratory findings in the patient. In liver cirrhosis (choice A), there is a decrease in clotting factors synthesis, leading to prolonged PT but not aPTT. Hemophilia A (choice C) is a genetic disorder that affects specific clotting factors, typically leading to prolonged aPTT but not PT. Vitamin K deficiency (choice D) impairs the synthesis of clotting factors, leading to prolonged PT but not aPTT and low levels of factors II, VII, IX, and X.

Correct Answer: A

Rationale: The correct immediate action is to inform the surgeon and anesthesiologist (Choice A) because a sudden decrease in oxygen saturation during surgery is a critical situation that requires prompt attention from the entire surgical team. The surgeon and anesthesiologist need to be made aware of the situation so that they can assess the patient's condition and make any necessary adjustments to the surgical procedure or anesthesia delivery. Increasing the flow rate of oxygen (Choice B) may help temporarily but does not address the underlying cause of the oxygen desaturation. Checking the endotracheal tube placement (Choice C) is important but may not be the immediate priority in this critical situation. Assessing the patient's respiratory status (Choice D) is important but should be done after informing the surgeon and anesthesiologist to ensure coordinated and timely interventions.