CSAC: All urine samples at UFC 184 clean
All competitors from the Feb. 28 event also submitted blood samples, marking the first time the commission has urine and blood tested an entire card.

Today the California State Athletic Commission revealed that all twenty-two fighters on the UFC 184 were subject to urine drug tests and passed:
California State Athletic Commission Executive Director Andy Foster confirmed the results with Sherdog.com on Friday. In addition, Foster confirmed that one carbon isotope ratio (CIR) test was performed, and that result came back clean as well.
All competitors from the Feb. 28 event also submitted blood samples, marking the first time the commission has urine and blood tested an entire card. Foster said he expects to receive the blood test results early next week.
