A school nurse is planning primary prevention activities for the school year. Which of the following actions should the nurse plan to take?

Explanation: Heroin is a central nervous system depressant that can cause various physiological effects on the body. Dilated pupils are a common sign of heroin use, along with a decrease in blood pressure, respiratory rate, and heart rate. The pupils will appear larger than usual because heroin depresses the parasympathetic nervous system, which controls the size of the pupils.

Tachypnea, or rapid breathing, is not typically associated with heroin use, as it is a central nervous system depressant. Euphoria, or a feeling of intense pleasure or happiness, is a common effect of heroin use, but it is not the most reliable sign of heroin use, as other drugs can also produce this effect. Nystagmus, an involuntary movement of the eyes, is not a common sign of heroin use. Dilated pupils are a reliable sign of heroin use and should be documented in the client's medical record. It is important for the nurse to assess for other signs of drug use and to provide appropriate care and support to the client, which may include referrals for substance abuse treatment. The nurse should also follow agency policies and procedures for reporting drug use and abuse to appropriate authorities.

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The correct answer is choice D. Agricultural workers who are exposed to pesticides are at risk for dizziness, headache, nausea, and vomiting. Dizziness is a common acute effect of pesticide exposure. Hypoglycemia is not a common effect of pesticide exposure, although it can occur in some cases of organophosphate poisoning. Oliguria is a decrease in urine output, and diplopia is a condition where an individual experiences double vision, neither of which is commonly associated with acute pesticide exposure.