Final answer:
The diagnostic yield of Zio XT is reportedly multiple times greater than that of Holter monitors, as Zio XT can detect cardiac arrhythmias more effectively according to certain studies.
Step-by-step explanation:
The question asks about the diagnostic yield of Zio XT compared to traditional Holter monitors. Diagnostic yield refers to the effectiveness of a medical device in detecting clinical events or abnormalities. Statistical studies suggest that Zio XT has a higher diagnostic yield than Holter monitors, often cited to be multiple times greater. For example, a study published in the American Journal of Medicine found that Zio XT detected cardiac arrhythmias significantly more often than a 24-hour Holter monitor. However, to provide the exact figure for how many times greater the diagnostic yield is, specific study results or data are needed.