Flow measurement is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive-displacement flow meters accumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow.
The following herbs have been rated Likely Safe or Possibly Safe for use during pregnancy:4. 1  Red Raspberry Leaf â Rich in iron, this herb has helped tone the uterus, increase milk production, decrease nausea, and ease labor pains. 2  Peppermint Leaf â Helpful in relieving nausea/morning sickness and flatulence.
Probably, but be careful. Many women avoid all drugs during pregnancy, including caffeine, alcohol, nicotine, and prescription and over-the-counter medicines, but then think nothing of drinking cup after cup of herbal tea. There is very little evidence on the safety of the use of herbal teas during pregnancy. A general guideline is to always drink tea made with a filtered teabag and it is always a good idea to drink herbal teas in moderation.