Which of the following is NOT a specific attribute of ICD-10-PCS?

When a P wave originates in the SA node, it is expected to be smooth, rounded, and ________ in Lead II

A) inverted B) upright C) notched D) biphasic

To find out if a rhythm is regular or irregular, measure the ________ across the entire strip

A) R-R intervals B) QRS complexes C) PR intervals D) PR segments