Final answer:
The correct method to amend a written PCR is to draw a single line through the erroneous information, write the correction next to it, and initial the amendment for accountability.
Step-by-step explanation:
The appropriate method when correcting an error on a written PCR (Patient Care Report) is to draw a single line through the error, write the correct information beside it, and initial the change. This method ensures the original content is still legible, which is important for maintaining the integrity of the document and for any subsequent audit or legal review. This approach allows for a clear understanding of what was corrected and who made the correction.