摘要目的 培养学生独立思考和分析与解决问题的能力,提高教学质量.方法 以25名2008级医学检验本科生为研究对象实施基于案例的“以问题为基础的学习”(Problem-based learning,PBL).教学步骤分为课前动员、提出问题、自学解疑、课堂讨论、点评总结5个阶段.采用问卷调查评价教学效果.结果 学生认为,自身的学习积极性(83.3％)、自学及获取文献信息能力(79.2％)、分析与解决问题能力(79.2％)、临床思维与推理能力(79.2％)得到明显提高；对采用基于案例的PBL教学满意率达95.8％.结论 基于案例的PBL取得较好教学效果,值得推广.

abstractsObjective To train medical students' competence of independent thinking and problem solving and to improve the quality of teaching.Methods The case-based PBL teaching model was introduced to teaching practice for 25 undergraduates majoring in medical laboratory.The teaching process included pre-class mobilization,question,self-study,discussion and summary.Effectiveness of teaching was evaluated with questionnaire.Results For these medical students,the enthusiasm of learning ( 83.3％ ),ability of self-learning and information seeking ( 79.2％ ),ability of discussing and problem solving ( 79.2％ ),ability of scientific thinking and clinical reasoning ( 79.2％ ) were significantly improved.Teaching satisfaction rate of case-based PBL teaching model was up to 95.8％.Conclusion Better results of teaching were achieved and the case-based PBL teaching model is worth spreading.