An investigation has been launched into the death of a patient at Kwong Wah Hospital after a claim by his family that an urgently needed brain scan was delayed for hours. Yik Cheung, 71, was admitted to the geriatric ward shortly before 1 pm on August 12 after he suffered a stroke at home and his right side was paralysed. A doctor who examined him said Yik was in critical condition and would urgently need a brain scan to pinpoint the cause and extent of the stroke. However, daughter Yik Wai-king claimed he was made to line up for more than four hours for the brain scan after other patients with prior appointments. He died the next morning from a brain haemorrhage. 'Crucial hours and minutes were lost while hospital staff and equipment, which could have been used to diagnose the cause of his ailment, were devoted to attending other patients whose appointments were booked in advance,' Ms Yik said. 'A nurse said sarcastically, 'you think yours is an emergency case. But there are many emergency cases in the hospital.' ' A spokesman for the Hospital Authority said because the case involved complicated medical procedures and diagnosis, the medical body would monitor the hospital's review of Yik's medical records and the alleged sequence of events. The hospital admitted there were no guidelines to judge who should have priority in being given brain scans. 'To determine the urgency of using a CAT scan at hospital, there is no hard and fast rule,' a hospital spokesman said. 'The clinician would discuss with the radiologist [in charge of the scan unit]. If it is agreed to perform an urgent CAT scan, it would be arranged very quickly, but the exact timing would depend [on the circumstances].' Dr So Hing-yu, the director of Yan Chai Hospital's intensive care unit, said the earlier a brain scan was administered in urgent cases, the better. But he added that Yik's stroke appeared to have been a severe haemorrhage, and his chances of survival were not good even with an early scan.