Correct Answer: A

Rationale: Step-by-step rationale: 1. Digoxin toxicity can be potentiated by hypokalemia due to the risk of enhanced cardiac toxicity. 2. Hypokalemia can lead to increased sensitivity of cardiac cells to digoxin. 3. Low potassium levels can disrupt the sodium-potassium ATPase pump, enhancing digoxin's effects. 4. The nurse should recognize hypokalemia as a predisposing factor for digoxin toxicity. Summary: A: Hypokalemia is the correct answer as it enhances digoxin toxicity by affecting cardiac function. B: Hyponatremia does not directly predispose to digoxin toxicity. C: Hyperkalemia is not a predisposing factor and can actually counteract digoxin's effects. D: Hypernatremia is not directly related to digoxin toxicity.

Correct Answer: B

Rationale: The correct answer is B because changing habits and customs that predispose the individual to cancer is crucial in preventing cancer. This includes lifestyle changes such as quitting smoking, maintaining a healthy diet, exercising regularly, and avoiding excessive sun exposure. By modifying behaviors that increase cancer risk, individuals can significantly reduce their chances of developing cancer. A: Increasing governmental control of potential carcinogens is not the first step towards effective cancer control as individual behaviors have a more direct impact on cancer risk. C: Conducting more mass screening programs is important but not the first step as prevention through lifestyle changes takes priority. D: Educating the public and professionals about cancer is essential but changing habits is the initial crucial step in effective cancer control.

Correct Answer: B

Rationale: The correct answer is B: Discuss the negative feelings with the client. This is the most appropriate action as it allows the nurse to address and manage their own biases and attitudes towards the client in a professional and constructive manner. By acknowledging and discussing these feelings with the client, the nurse can work towards providing non-judgmental care and fostering a therapeutic relationship. A: Sharing these feelings with the client is not appropriate as it can harm the nurse-client relationship and potentially lead to discrimination. C: Developing a written interview form is not addressing the immediate issue of the nurse's negative attitude towards the client. D: Avoiding eye contact with the client is unprofessional and does not address the underlying issue of the nurse's negative feelings.

Correct Answer: A

Rationale: The correct answer is A: Post-trauma syndrome related to being attacked. This diagnosis accurately reflects the client's symptoms of reliving the traumatic event, crying uncontrollably, and expressing fear. "Post-trauma syndrome" encompasses the psychological and emotional distress following a traumatic event. Choice B: Psychological overreaction simplifies the client's experience and does not capture the severity or ongoing nature of the trauma symptoms. Choice C: Needs assistance coping with attack is vague and does not provide a specific diagnosis or acknowledge the clinical presentation of the client. Choice D: Mental distress related to being attacked is too broad and does not specify the specific syndrome or symptoms experienced by the client.

Correct Answer: D

Rationale: Step 1: Monitoring Mrs. GC's color, pulse, and respiration is important to assess for any signs of distress during the procedure. Step 2: Labeling all laboratory specimens in numerical order ensures accurate identification and prevents errors in specimen handling. Step 3: Positioning Mrs. GC on her side with knees drawn up to her chest helps maintain proper spinal alignment and reduces the risk of complications. Summary: Option D is correct because all the interventions mentioned are crucial for ensuring patient safety and procedural success. Options A, B, and C are incorrect individually as they each address only one aspect of the procedure, whereas the correct answer encompasses all necessary interventions.