床边血糖检测 (又称即时血糖检测)，实质是将用于自我血糖监测（SMBG）的设备和方法应用到院内床边。是一种测量血糖水平的方法。

POCT测量血糖的便于及时诊断，可用于紧急情况。在急诊室、急救车等众多条件有限、但仍然需要迅速得出检测结果的场景运用。但是其也可能受到血球压积异常、多种干扰物质、操作误差以及血糖试纸本身生产精确度产生的误差所带来的影响。一些较为先进的血糖检测系统采用了定标质控系统，从而促进了精确度的提升。

Point-of-care testing (POCT), or bedside testing is defined as medical diagnostic testing at or near the point of care—that is, at the time and place of patient care. This contrasts with the historical pattern in which testing was wholly or mostly confined to the medical laboratory, which entailed sending off specimens away from the point of care and then waiting hours or days to learn the results, during which time care must continue without the desired information.