yīshēng / jiànyì / tā / zài / shǒushù qián / jiǎnchá / níngxuèméiyuán / shíjiān / yǐ / pínggū / níngxuè / gōngnéng

医生建议他在手术前检查凝血酶原时间，以评估凝血功能。

The doctor recommended that he have his prothrombin time tested before surgery to assess his blood-clotting function.