It is possible to hold a baby after a C14 test. The C14 test is a method used to detect Helicobacter pylori. It uses the radioactivity of C14 to label the urease enzyme produced by Helicobacter pylori to diagnose the presence of Helicobacter pylori infection in the digestive tract. Since the radioactivity of the C14 test is relatively small and has little effect on the surrounding area, it is possible to hold a baby after the test, and the effect on the child is relatively small. However, it is described in the C14 test precautions that pregnant and lactating women should try not to do this test to avoid affecting the fetus and baby. If you have a C14 test, it is not a big impact to hold the baby for a little while, and if you are a baby mama who needs to breastfeed, try to avoid doing this test.