Mandela, 94, was hospitalised on 8 June to treat a recurring lung infection.
The presidency confirmed the incident but said Mandela’s health was not compromised and that his doctors were satisfied the former president suffered no harm.
CBS News correspondent Debora Patta also quoted sources as saying that the former president’s liver and kidneys are functioning at 50%. Mandela also apparently had to have a procedure to repair a bleeding ulcer and another to insert a tube.
“We also understand that Mandela family members are discussing just how much medical intervention is enough for an old and very sick man,” CBS News stated.
On Thursday, Madiba’s grandson, Ndaba Mandela, said his grandfather was looking well and was expected to be going home soon. Former president Thabo Mbeki was also quoted as saying that Mandela’s health was improving.