Questions Robyn Boman/Genevieve Carbonatto What is the normal heart rate range for 1st trimester pregnancy at 6 weeks, 9 weeks and  after 9 weeks and how would you measure it? 2. Discuss the reasons for not using colour Doppler or power Doppler in the 1st trimester. 3. Describe the sonographic appearance of a subchorionic haemorrhage Read more about 1st trimester Quiz[…]