Certified Respiratory Therapist Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Which method is recommended for disinfecting a reusable breathing circuit after use for a patient with pneumonia?

Boiling

Wiping with alcohol

Pasteurization

Disinfecting a reusable breathing circuit after use for a patient with pneumonia involves ensuring that all pathogens are effectively killed or inactivated to prevent cross-contamination with future patients. Pasteurization is an effective method for this purpose, as it involves heating the equipment to a temperature that destroys most bacteria and viruses without compromising the integrity of the materials in the circuit.

In particular, pasteurization can be performed using hot water or vapor at a specific temperature for a set period, which is optimal for disinfecting healthcare equipment while ensuring that the materials remain undamaged and safe for use. This method is widely recommended in healthcare settings for items that may come into contact with respiratory secretions or pathogens.

The other methods present certain limitations in this context. For example, boiling can sterilize but may not be practical for every item due to the risk of damaging sensitive components. Wiping with alcohol may not achieve adequate disinfection levels for all pathogens, especially in the presence of organic materials like mucus, which can protect bacteria. Immersion in vinegar is not an effective method for ensuring complete disinfection against all pathogens, particularly in a healthcare setting focused on rigorous infection control.

Thus, pasteurization stands out as the recommended choice for disinfecting a reusable breathing circuit after use

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Immersion in vinegar

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