A doctor has been found guilty of instructing her nurses to change dosages and give an injection without the knowledge of the attending doctor who took over her duties while she was on leave. The Medical Council yesterday ordered that Chow Po-wah, an owner of three clinics, be removed from the medical register for one month. The council heard that Chui Hau-yu, who mainly worked for Dr Chow's Tsuen Wan clinic in 2003, covered for Dr Chow in a Tin Shui Wai clinic from October 23 to 25 in 2003, while Dr Chow was on vacation. On October 25, 2003, a woman visited Dr Chui for a contraceptive injection, but Dr Chui said she could not give her an injection until the patient took a pregnancy test. Dr Chui said a clinical assistant then told her that she would give the patient the injection if Dr Chui refused to do it herself. But clinical assistant Joey Lam later said she had given the patient an injection. Later that day, Dr Chui checked other medical records and found some of them had been changed by others. Dr Chui said she had prescribed diluted Panadol to three toddlers on October 24 and 25 in 2003, but she later found that the level of dilution had been crossed out without her knowledge. She heard from Ms Lam that assistants had been instructed to change Dr Chui's prescription to Dr Chow's usual practice if discrepancies arose. Ms Lam told the council that she had called Dr Chow to consult about the Panadol dosage and contraceptive injection issues before making the changes. But according to the telephone record of Dr Chow's husband, she received one call from Hong Kong at 4.08pm on October 25, 2003, lasting for about 5 minutes, in Thailand. However, council chairwoman Felice Lieh Mak said that did not exclude the possibility that Dr Chow had made calls by using other phones to make orders to her nurses as she had declined to give evidence in the hearing. Professor Mak said it was entirely unacceptable that Dr Chow, who had not seen the patient face to face, had overridden the attending doctor's judgment without Dr Chui's knowledge.