Proofreading. Clean up the following sentences by identifying and correcting misspellings and misused/incorrect words.

QUESTION

1.The patient's distented abdomen over the cholecystetomy incision was a source of discomfort.

ANSWER:

The patient's distended abdomen over the cholecystectomy incision was a source of discomfort.

* distended, cholecystectomy corrected spelling-
My Concern: is it: incision was or incision were

Since the subject is "abdomen" (not "incision"), you need "was" because both are singular forms.