Does the use of a nuclear fluid and a lipid hormone via the blood to examine the liver and gallbladder invalidate the fast?

What a fasting person takes, whether it be therapeutic injections or intravenous fluids, falls into two categories: First, what nourishes the body and breaks the fast, because it is in the meaning of eating and drinking. Second, what does not nourish the body and does not break the fast, and is not in the meaning of eating and drinking. Semen samples and hormones belong to the second category, unless it is proven by a specialist doctor that they nourish the body. It is more cautious to postpone them until after breaking the fast.