Question

which observation tool allows shauna’s doctor to monitor her blood circulation in real-time?
○ a microscope
○ a telescope
○ an x-ray
○ an ultrasound

Explanation:

• A microscope is used to view small objects like cells, not for real - time blood circulation monitoring.
• A telescope is for observing distant objects in space or far - away landscapes, not related to blood circulation.
• An X - ray is mainly for imaging bones and some internal structures but not for real - time monitoring of blood flow.
• An ultrasound (specifically Doppler ultrasound) can be used to monitor blood circulation in real - time by detecting the movement of blood cells.

Answer:

D. an ultrasound