If the ultrasound measurements are in agreement and differ from menstrual dates by more than one week prior to 20 weeks a new estimated due date should be calculated and recorded.
Measurements in the beam axis are more accurate than those made across the axis. Crown-Rump Length (CRL) and femur length) should be measured across the axis.Check mild interactions to serious contraindications for up to 30 drugs, herbals, and supplements at a time.At the first trimester scan they confirm that the fetus is alive, they assess the gestational age by measuring the crown-rump length and will look for any major problems.The articles assist in the understanding of the anatomy involved in treating specific conditions and performing procedures.They can also facilitate physician-patient discussions. Drug Monographs More than 7100 monographs are provided for prescription and over-the-counter drugs, as well as for corresponding brand-name drugs, herbals, and supplements. Drug Interaction Checker Our Drug Interaction Checker provides rapid access to tens of thousands of interactions between brand and generic drugs, over-the-counter drugs, and supplements.