It's that time again! Jim Cramer rang the lightning round bell, which means he gave his take on caller favorite stocks at rapid speed:

AMN Healthcare Services: "I talk to Susan Salka [CEO] pretty regularly. I don't think anything is wrong with the stock. I think it's terrific at hospital staffing. Medical staffing is the place to be, I would be a buyer of what Susan Salka is doing."

MiMedx Group: "It is on my list for companies to look at. I am not there yet. You know I like the medical device companies. Let me do more work and come back."

Randgold Resources: "We own Rangold. Why do we own Randgold? You own Randgold to have exposure to gold. Gold has been rocky. The last two quarters, Dr. Bristow [CEO] has not delivered. How do I know that? Because he would tell you. Do I still want to be with him? They are the fastest growing large gold cap in the world. I think that it's a good time to hold on to it and buy more ... I would buy some right here."

Pacific Ethanol Inc: "Not a fan, not a fan. Too speculative for me. I just don't think it's a good enough situation."

Hartford Financial Services Group: "Undervalued. Now, just understand that my favorites in the group are more inclined towards much broader AIG, but I do like HIG. A lot of people think it's a good takeover name. I think you just own it for earnings."

Consolidated Edison: "Con-Ed below $70."

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