护士抽血做血液检查以检测血糖水平。

The nurse took a ___blood sample to check my sugar levels.

医生建议我每年做一次血检来检查胆固醇水平。

The doctor advised me to get a ___blood test yearly to check my cholesterol levels.

医生建议他每三个月做一次血液检查以追踪治疗效果。

The doctor recommended getting a ___blood test every three months to track the treatment progress.