RATIONALE: Phencyclidine is an anesthetic with severe psychological effects. It blocks the reuptake of dopamine and directly affects the midbrain and thalamus. Nystagmus and ataxia are common physical findings of PCP use. Dilated pupils are evidence of LSD ingestion. Paranoia and altered mood occur with both PCP and LSD ingestion.NURSING PROCESS STEP: AssessmentCLIENT NEEDS CATEGORY: Physiological integrityCLIENT NEEDS SUBCATEGORY: Physiological adaptationCOGNITIVE LEVEL: Knowledge