Correct Answer: D

Rationale: The correct answer is D, as exercise and a weight reduction diet are essential components in managing type 2 diabetes. Exercise helps lower blood glucose levels and improves insulin sensitivity. Weight reduction reduces insulin resistance. Choice A is incorrect because maintaining blood glucose levels between 180-200mg/dl is too high and can lead to complications. Choice B is incorrect as complete smoking cessation is crucial for overall health and diabetes management. Choice C is incorrect because eye examinations should be done annually, not every 2 years, to monitor for diabetic retinopathy. In summary, choice D is the best option as it directly addresses the management of type 2 diabetes.

Correct Answer: C

Rationale: The most pertinent nursing diagnosis for the patient with a right femur fracture stabilized in a full leg cast is "Acute pain" (Choice C). The rationale for this is as follows: 1. The patient is experiencing moderate discomfort due to the fracture and immobilization in the cast, indicating a need for pain management. 2. Acute pain is a priority in this situation as it can impact the patient's comfort, mobility, and overall recovery. 3. Managing pain effectively is crucial for promoting healing, preventing complications, and improving the patient's quality of life. 4. Posttrauma syndrome (Choice A) may be a consideration in the long term but is not the immediate priority. Constipation (Choice B) is not the most pertinent nursing diagnosis in this scenario. Anxiety (Choice D) may be present but addressing pain is more urgent and directly related to the patient's current condition.

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: A

Rationale: The correct answer is A: Norepinephrine. Norepinephrine is the primary neurotransmitter that mediates the sympathetic response. It is released by sympathetic nerve endings and acts on adrenergic receptors in various target organs to initiate the "fight or flight" response. Prostaglandin, acetylcholine, and serotonin do not directly mediate the sympathetic response and are involved in different physiological processes.

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.