A nurse is reinforcing teaching with a client who is dependent on nicotine and wishes to discontinue smoking. The nurse should inform the client that which of the following is a manifestation of nicotine withdrawal?

A. Weight loss: Nicotine withdrawal typically leads to increased appetite and potential weight gain rather than weight loss. The absence of nicotine alters metabolism and hunger signals, often causing individuals to consume more food, especially carbohydrates, as a substitute for smoking. B. Insomnia: Disruptions in sleep patterns are a common symptom of nicotine withdrawal. Nicotine is a stimulant that affects neurotransmitters, and its sudden absence can cause difficulty falling asleep, frequent nighttime awakenings, and restless sleep. Sleep disturbances can persist for several weeks after smoking cessation. C. Diarrhea: Nicotine withdrawal is more commonly linked to constipation rather than diarrhea. Nicotine stimulates gut motility, and when discontinued, bowel movements may slow down, leading to temporary constipation rather than increased bowel activity. D. Diaphoresis: While withdrawal can trigger irritability and autonomic symptoms such as mild sweating, excessive sweating is not a primary sign. More common symptoms include mood swings, restlessness, headaches, increased cravings, and difficulty concentrating as the body adjusts to the absence of nicotine.