plasma drug level

例句：

1. 1. The researchers found that the plasma drug level in the patient's blood was significantly lower than normal.
   研究人员发现，患者血液中的等离子体药物浓度显著低于正常值。
2. 2. The treatment for this disease is based on the plasma drug level, which can be adjusted according to the patient's condition.
   这种疾病的治疗基于等离子体药物水平，可以根据患者的病情进行调整。
3. 3. The plasma drug level monitoring system has been widely used in clinical practice, providing valuable information for drug dosage adjustment.
   血浆药物水平监测系统在临床实践中得到了广泛应用，为药物剂量调整提供了有价值的信息。