A nurse is reviewing the medical record of a client who has schizophrenia and is taking clozapine.
Which of the following findings should the nurse identify as a contraindication to the administration of clozapine?

Choice A rationale:

Taking antibiotics when having a virus is not a correct understanding of infection prevention. Antibiotics are ineffective against viruses and should only be used for bacterial infections under the guidance of a healthcare provider. This statement indicates a misunderstanding of infection prevention.

Choice B rationale:

Washing hands for at least 20 seconds with soap and water is the recommended practice for infection prevention. Washing hands for 10 seconds may not be sufficient to remove all germs effectively. This statement does not demonstrate a proper understanding of hand hygiene.

Choice C rationale:

Cleaning a cat's litter box during pregnancy is not recommended due to the risk of contracting toxoplasmosis, a parasitic infection that can harm the fetus. Pregnant individuals should avoid handling cat litter to prevent exposure to this infection. This statement indicates a lack of awareness regarding infection prevention during pregnancy.

Choice D rationale:

Waiting 5 days after the chickenpox sores have crusted before visiting a person with chickenpox demonstrates an understanding of infection prevention. Chickenpox is highly contagious, and individuals should avoid close contact until the sores have fully healed and crusted over. This statement reflects appropriate knowledge about preventing the spread of contagious diseases during pregnancy.

The correct answer is Choice C, the system is working properly.

Choice A rationale: The lung has re-expanded is incorrect. If the lung has re-expanded, there would be no tidaling in the water seal chamber, as the pleural space would be restored to its normal negative pressure.Tidaling indicates that there is still air or fluid in the pleural space that needs to be drained

Choice B rationale: There is a loop of tubing below the drainage system is incorrect. A loop of tubing below the drainage system would not cause tidaling in the water seal chamber, but it could cause fluid accumulation in the tubing, which could impair the drainage and increase the risk of infection.The tubing should be straight and free of kinks or loops

Choice C rationale: The system is working properly is correct. Tidaling in the water seal chamber means that the water level rises and falls with the patient’s respirations. This is normal and expected, as it indicates that the chest tube is patent and connected to the pleural space, and that the drainage system is airtight and preventing air or fluid from entering the pleural space.Tidaling should stop when the lung is fully re-expanded or the chest tube is clamped

Choice D rationale: The tubing is partially obstructed by clots is incorrect. If the tubing is partially obstructed by clots, there would be no tidaling in the water seal chamber, as the chest tube would not be able to drain the air or fluid from the pleural space. The water level in the water seal chamber would be stagnant, and the patient may experience respiratory distress.The tubing should be checked regularly for clots and milked gently if needed