On a computer, the radiologist will watch the progress of the radioactive tracer through your body. In some cases, you might need additional imaging within 24 hours if original images aren't satisfactory. After the procedure. In most cases, you can go about your day after your scan. The small amount of radioactive tracer will lose its reactivity or pass through your urine and stool over the next day or two.
Amniotic Fluid Origin and Production. The fluid is produced by the motherâs placenta during the first trimester and the early part of the second trimester, until the babyâs kidneys are mature enough to take over the task.
Shortly after the kidneys start to produce urine, the fetal swallowing commences. Amniotic fluid is 98% water and 2% salts and cells from the baby. Until the fetal kidneys start working during month four, amniotic fluid is made by the motherâs body. But after month 4, the fetus starts to make his contribution to the amniotic fluid by urinating into it (Penn Medicine).