What does it mean a a test is abnormal of a X-ray of small bowel?

Small bowel. A vague question gets a vague answer, consult your dr.
Non specific finding. Many possibilities include bowel obstruction, partial or complete, bowel wall thickening possibly inflammation, edema , or other. Bottom line: this finding must be interpreteted in conjunction with symptoms, history, and laboratory results.
Follow up. You need to get detailed information from your doctor regarding the test, the abnormality, and what further investigation if any is expected.
Need more info. Was this a small bowel series or just a x-ray. What was the abnormal finding? This is not a question that can be accurately answered.