yán / jiū / rén / yuán / zhèng / zài / jiǎn / cè / xuè / yè / zhōng / de / ròu / jiǎn / shuǐ / píng / yǐ / liǎo / jiě / huàn / zhě / de / dài / xiè / qíng / kuàng研究人员正在检测血液中的肉碱水平,以了解患者的代谢情况。Researchers are testing the carnitine level in the blood to understand the patient's metabolism.