After she was freed from weeks of captivity, Redding mother Sherri Papini screamed for help so hard she coughed up blood, her husband said.

In his first interview since his wife was found on the side of Interstate 5  in Yolo County on Thanksgiving morning, Keith Papini told ABC’s “20/20” that his wife was constantly chained to objects so she couldn’t escape and tried desperately to stop passing cars once she was free.

“She screamed so much, she’s coughing up blood from the screaming trying to get somebody to stop,” Papini said in the interview scheduled to air Friday. “And again just another sign of how my wife is, she’s so wonderful. She’s saying, ‘Well maybe people aren’t stopping because I have a chain that looks like I broke out of prison,’ so she tried to tuck in her chain under her clothes.”

Bruised, emaciated and unsure of where she was, Papini still had a chain around her waist when she managed to successfully flag down a driver. Her hair had been cut off, she had been branded with a “message,” and her nose was broken, her husband and Shasta County sheriff’s officials said.

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