Jenelle Evans' first husband suffered an apparent overdose at his home in North Carolina ... and his wife's frantic call to dispatchers is chilling.
TMZ obtained audio of the 911 call Courtland Rogers' wife placed Aug. 28 from their home in Wilmington, and she says Courtland is showing signs of an overdose ... describing him as being naked on the toilet while making concerning gurgling sounds.
Courtland's wife says he locked himself in the bathroom while she was out of the house with their kids ... but she broke down the door to find him unresponsive.
The dispatcher tells Courtland's wife to try getting him off the toilet, and lay him flat on his back on the floor, but he's too heavy for her to move and she resorts to trying CPR.
As Courtland's wife desperately tries to revive him, she screams for him to wake up ... and tells the dispatcher she's unsure what drugs he took and there's no Narcan available to resuscitate him.
Ultimately, paramedics arrive ... and that's when the call stops.
Our law enforcement sources say Courtland survived, and no drugs or paraphernalia were found on scene when authorities arrived.
Courtland -- who was married to the former "Teen Mom" star from 2012 to 2014 -- has been open in the past about his drug abuse ... estimating he's overdosed 5 times, and admitting heroin's ruined his life.