The dobutamine stress echo test involves the injection of a medication called dobutamine while you are closely monitored. The medication stimulates your heart in a similar way as exercise. Important: If you have a pacemaker/defibrillator, it must be checked at Cleveland Clinic before your dobutamine stress echo test.
Your Baby During the Second Trimester. The second trimester is normally considered to be from the beginning of the fourth month to the end of the sixth month. This works out in weeks to start from about the thirteenth week of pregnancy.
How long does pregnancy last and how is the pregnancy divided? Pregnancy lasts about 40 weeks and is divided into 3 trimesters,which are about 12-14 weeks long each. The first trimester ends around week 13, the second ends aroundweek 26, â¦ and the third trimester ends anywhere between week 38 and42, depending on when the baby is born.