Q 15 A doctor using 3 MHz ultrasound measures a 6500 Hz frequency shift as the ultrasound reflects from blood ejected from the heart through the aorta. Assuming that blood inside the heart is essentially at rest and the patient is lying down, what is the difference in blood pressure between the inside of the heart and the aorta? Treat blood as an ideal fluid. A. 1.8 X 10³ Pa (14 mm Hg) B. 9.0 X 10² Pa (7 mm Hg) C. 1.5 X 10³ Pa (11 mm Hg) D. 3.1 X 10³ Pa (23 mm Hg) High pressure Aorta Low pressure Heart
Q 15 A doctor using 3 MHz ultrasound measures a 6500 Hz frequency shift as the ultrasound reflects from blood ejected from the heart through the aorta. Assuming that blood inside the heart is essentially at rest and the patient is lying down, what is the difference in blood pressure between the inside of the heart and the aorta? Treat blood as an ideal fluid. A. 1.8 X 10³ Pa (14 mm Hg) B. 9.0 X 10² Pa (7 mm Hg) C. 1.5 X 10³ Pa (11 mm Hg) D. 3.1 X 10³ Pa (23 mm Hg) High pressure Aorta Low pressure Heart
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Transcribed Image Text:Q15 A doctor using 3 MHz ultrasound measures a 6500 Hz frequency shift as the
ultrasound reflects from blood ejected from the heart through the aorta.
Assuming that blood inside the heart is essentially at rest and the patient is lying
down, what is the difference in blood pressure between the inside of the heart
and the aorta? Treat blood as an ideal fluid.
A. 1.8 X 10³ Pa (14 mm Hg)
B. 9.0 X 102 Pa (7 mm Hg)
C. 1.5 X 10³ Pa (11 mm Hg)
D. 3.1 X 10³ Pa (23 mm Hg)
High
pressure
Aorta
Low
pressure
Heart
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