Beth Chapman was placed in a medically-induced coma on Saturday and is 'not expected to recover,' according to TMZ.
The 51-year-old wife of
Dog the Bounty Hunter was hospitalized at the Queen's Medical Center after experiencing 'difficulty breathing' while battling stage four lung cancer.
Beth's mother flew to Honolulu and her children and grandchildren are also 'gathering at her bedside' as sources reported there's 'not a lot that can be done' for her at this point.
The family is also 'making medical decisions with the help of her doctors.'
He posted a bedside tribute on Monday night to his wife, tweeted a touching photo of Beth's right hand with a rhinestone manicure.
'You all know how she is about HER NAILS !!' wrote Duane, who rang in his 13th wedding anniversary with Beth this May.
The reality star - who has struggled with throat cancer for years - was reportedly in a lot of pain and required oxygen last week.
He pleaded with his fans on Twitter late Saturday night to 'please say your prayers for Beth right now.'
In a statement, Duane and his family 'humbly ask everyone to please pray for Beth.'
Beth underwent successful surgery for throat cancer in 2017.
However, the cancer returned last year and doctors removed a tumor from her throat after an emergency surgery in November.
At the time, their family attorney Andrew Brettler said that while the family was staying strong, the surgery was 'serious.'
'But she has excellent doctors who are evaluating her treatment options,' he assured their friends and fans.
The Chapmans rose the ranks of reality television with their hit show based around the family bail bond business based in downtown Honolulu.
Viewers caught a small glimpse at the intricate world of bounty hunting, with Dog at the helm as the family sought out and arrested people who broke terms of their bail agreements.
The A&E network first picked up the show in August 2004 and canceled the series after eight seasons in May 2012.
The power couple starred in a spin-off series, Dog and Beth: On the Hunt in August 2015, and a two-hour special called Dog and Beth: Fight of Their Lives just recently in November.