Correct Answer: A

Rationale: The correct answer is A. Cocaine is a stimulant drug that typically leads to symptoms such as dilated pupils, pacing, and psychomotor agitation. Dilated pupils occur due to increased catecholamines. Pacing and psychomotor agitation are common behaviors associated with cocaine use. Unsteady gait and aggressiveness (Option B) are more characteristic of alcohol intoxication. Pupil constriction, lethargy, apathy, and dysphoria (Option C) are typical symptoms of opioid use. Constricted pupils, euphoria, and decreased temperature (Option D) are more indicative of opioid use as well.

Correct Answer: D

Rationale: The correct answer is D: discuss how the patient's food choices may affect her health and that of her baby. This is the most appropriate response because it addresses the potential impact of the patient's current diet on her health and the health of her baby during pregnancy. By discussing the implications of her food choices, the nurse can educate the patient on the importance of a balanced and nutritious diet for a healthy pregnancy. This approach promotes awareness and empowers the patient to make informed decisions for her and her baby's well-being. Incorrect choices: A: This option does not provide guidance or education on improving the patient's diet, which is crucial for a healthy pregnancy. B: Focusing on weight gain rather than nutritional content may not address the underlying issue of poor dietary choices. C: Assuming the patient's ability to cook or go grocery shopping may not address the immediate need for dietary education and guidance.

Correct Answer: A

Rationale: The correct answer is A. Cocaine is a stimulant drug that typically leads to symptoms such as dilated pupils, pacing, and psychomotor agitation. Dilated pupils occur due to increased catecholamines. Pacing and psychomotor agitation are common behaviors associated with cocaine use. Unsteady gait and aggressiveness (Option B) are more characteristic of alcohol intoxication. Pupil constriction, lethargy, apathy, and dysphoria (Option C) are typical symptoms of opioid use. Constricted pupils, euphoria, and decreased temperature (Option D) are more indicative of opioid use as well.

Correct Answer: A

Rationale: The correct answer is A: Administer oxygen. This is the priority intervention to address severe shortness of breath, ensuring the client receives adequate oxygenation. Administering oxygen helps improve oxygen saturation levels and supports respiratory function. Encouraging deep breathing (B) may exacerbate the client's distress. Elevating the head of the bed (C) can help improve breathing but does not address the immediate need for oxygen. Administering antibiotics (D) is not indicated for shortness of breath unless there is an underlying infection causing it.

Correct Answer: A

Rationale: The correct answer is A: Administer IV fluids. In acute renal failure, maintaining adequate hydration is crucial to support kidney function and prevent further damage. IV fluids help improve renal perfusion and promote urine output. Hemodialysis may be necessary in severe cases but initial intervention is fluid resuscitation. Administering pain relief or morphine is not the priority in acute renal failure as addressing hydration status takes precedence over pain management.