A contraction stress test (CST) is performed near the end of pregnancy to determine how well the fetus will cope with the contractions of childbirth. The aim is to induce contractions and monitor the fetus to check for heart rate abnormalities using a cardiotocograph.
If your USB drive is not being recognized by Windows, or is not formatting properly, there may be problems with either Windows or the USB drive itself. If the problem is on Windows' end, you can usually solve it by reinstalling the USB drivers.. Click. OK to start formatting the drive. This may take a while, but if the format is successful, the drive should appear in Windows. If the format process doesn't work, try the next section. 1  Formatting will delete all of the data on the USB drive.
To format an external drive on a Mac: 1  Open Finder and go to /Applications/Utilities and double-click on Disk Utility. 2  Select your drive in the left-hand sidebar and go to the Erase tab. 3  Under the Format menu, choose the file system you want to use. 4  Give your drive a name and click the Erase button.