There is a newer device using ultrasound as a bedside test with ultrasonic waves in a test tube which is being studied.

有一种新型设备正在进行研究，就是在床旁通过检测管应用超声波检测凝血功能。

youdao

The test takes 15 minutes and can be carried out almost anywhere, from a hospital bedside to an outpatient clinic, with the patient either sitting or lying down.

这种测试需要15 分钟，且可以在从医院床边到门诊的几乎任何地方进行，测试时患者坐立或躺下。

youdao

The approach is so exotic that it should have taken eight years to move from the test tube to the bedside.

FORBES: Do-It-Yourselfer