Doppler ultrasound can be used to display
A: Fetal heart beat
B: Rear artifacts
C: Blood flow
A: Fetal heart beat
B: Rear artifacts
C: Blood flow
举一反三
- What can not produce Doppler effect in human body ( ) A: Fetal heart B: Heart valve C: Stationary liver tissue D: Blood flow
- If the _______ stops beating, no blood can flow through the body.() A: heart B: lungs
- How is the embolism of a thrombotic stroke formed? ① Blood flow slows down. ② A sudden change in heart rhythm prevents the upper chambers of the heart from contracting normally. ③ Platelets, clotting factors, and fibrin stick together. ④ The clot can be carried up towards the arteries and blood vessels supplying the brain until it can’t squeeze through. A: ②④③① B: ②①③④ C: ②①④③ D: ①②④③
- 9. Ultrasound can be used to locate tumors. A: True B: False
- Which of the following is not the ultrasound features of portal hypertension? A: Portal vein dilated B: The direction of blood flow in portal vein is toward liver C: ascites D: Esophageal varices