A nurse is assessing a client who is taking methamphetamines. Which of the following findings should the nurse identify as an adverse effect of methamphetamines?

A. Hypotension: Methamphetamines are central nervous system stimulants that typically cause hypertension and tachycardia due to increased sympathetic activity, rather than low blood pressure. B. Weight loss: Methamphetamines suppress appetite and increase metabolism, which can lead to significant weight loss. This is a common adverse effect associated with chronic use. C. Somnolence: Stimulant effects of methamphetamines generally cause insomnia and hyperactivity rather than excessive sleepiness. Somnolence is not a typical adverse effect. D. Lethargy: Methamphetamine use initially produces energy and euphoria. Lethargy may occur only during withdrawal, not as a direct adverse effect of active use.