Royal doctors have performed a haemodialysis on His Majesty the King and used drugs to control his blood pressure, according to the 36th announcement issued by the Royal Household Bureau.
The bureau said that on Saturday, the doctors carried out the haemodialysis to purify his blood and changed a tube that drains excess cerebrospinal fluid in His Majesty's lateral ventricles from 2pm to 4.40pm.
After that procedure, his blood pressure occasionally dropped. Medicine was administered and doctors put him on a ventilator to bring his blood pressure back to normal levels.
At 3am on Sunday, the king’s pulse was faster and the blood pressure issue subsided. An inspection found higher levels of acid in the blood.
An echocardiogram found a sharp drop in blood injected into the lower left chamber of his heart as a result of high blood pressure in the lungs.
At 3pm, medicines were administered to enlarged blood vessels in the lungs. The pulse and blood pressure improved after that.
"The medical team are watching his symptoms and giving treatments carefully because the overall symptoms of his sickness are still not stable," the statement said.