A nurse is assisting with the care of a client who is receiving a continuous IV infusion. Which of the following findings indicates fluid volume overload?

A. Handling cat feces: Toxoplasmosis is most commonly transmitted through exposure to Toxoplasma gondii, a parasite found in cat feces. Handling contaminated litter, soil, or sand without proper hygiene can lead to infection, making this the correct response.

B. Drinking contaminated water: While contaminated water can transmit various infections, toxoplasmosis is primarily associated with exposure to cat feces or undercooked meat, not typically with drinking water.

C. Eating shellfish: Eating shellfish can expose individuals to other types of infections, such as hepatitis A or certain bacterial infections, but it is not a known source of toxoplasmosis.

D. Touching body fluids: Toxoplasmosis is not spread through casual contact with body fluids like saliva, blood, or urine. It is mainly transmitted through ingestion of the parasite from contaminated sources.

• alcohol intoxication: Although the client consumed one beer, this small amount is unlikely to cause unresponsiveness, respiratory depression, or the need for naloxone administration. Alcohol intoxication alone does not explain the profound sedation and pinpoint pupils observed.
• alcohol withdrawal: Alcohol withdrawal typically presents with signs like agitation, tremors, hallucinations, and seizures, not sedation, miosis, and depressed respiratory drive. The client’s symptoms are inconsistent with alcohol withdrawal.
• hallucinogen intoxication: Hallucinogen use usually leads to agitation, paranoia, hallucinations, and dilated pupils (mydriasis), not the sedated state, respiratory depression, and miotic pupils that this client is exhibiting.
• opioid intoxication: The client's unresponsiveness, respiratory depression, and pinpoint pupils, combined with a positive response to naloxone, are classic indicators of opioid intoxication. These findings directly align with the expected effects of opioid overdose.
• opioid withdrawal: Opioid withdrawal presents with signs like agitation, mydriasis, diarrhea, piloerection, and flu-like symptoms. The client’s current state of sedation and miotic pupils contradicts what would be seen during opioid withdrawal.
• amount of alcohol consumed: The small amount of alcohol (one beer) does not correlate with the severity of the client’s clinical presentation. Thus, alcohol consumption is not the primary factor contributing to the current state.
• breath sounds: Breath sounds are clear and equal bilaterally, indicating that the lungs are not the source of the client's critical condition. There is no evidence of respiratory infection or pulmonary complications.
• abdominal findings: Decreased bowel sounds are common in opioid intoxication due to decreased gastrointestinal motility. However, while supportive, this finding is less definitive than the hallmark sign of pupil constriction.
• pupil characteristics: The presence of pinpoint pupils (miosis) is a hallmark sign of opioid intoxication. Miotic pupils, especially in an unresponsive client who improved after naloxone, strongly support opioid overdose as the primary diagnosis.
• current temperature: The client's temperature is within normal limits, providing no significant diagnostic clue toward explaining the cause of unresponsiveness or respiratory depression.