Which combination lists all three duty areas for 4H0X1?

• A. Respiratory Therapy and Pulmonary Laboratory
• B. Cardiology Laboratory and Respiratory Therapy
• C. Respiratory Therapy, Pulmonary Laboratory, Cardiology Laboratory
• D. Pulmonary Laboratory only

Answer: (C)

The 4H0X1 role covers three duty areas: Respiratory Therapy, Pulmonary Laboratory, and Cardiology Laboratory. This means someone in this specialty works across patient breathing care, conducts or assists with pulmonary function testing, and supports activities in the cardiology lab. The only option that includes all three areas is the correct one, because it fully reflects the scope of duties. Choices that list only two areas or just one area leave out at least one part of what this specialty performs, which is why they aren’t the best match.