A sound beam emitted by a probe returned after 78 microseconds. What is the depth to the reflector?

What is the approximate attenuation coefficient of 1 MHz U/S in soft tissue?

What statement is/are true when the reflector/s is/are much smaller than the beams wavelength

A sound pulse travels from one medium to another at an angle of 45 degrees. If the prop speed of Medium 1 >than that of Medium 2 then

All of these  are the conditions for  refraction EXCEPT? a) angle of incidence not equal to 90 deg b) prop speed mismatch c) Impedance  mismatch d) Angle of transmission not equal to angle of incidence

What is the value of attenuation coefficient in soft tissue if frequency=10MHz?

What is the total distance if go return time is 65 microsecs

Which probe has superior radial resolution? a) 4 mm spatial pulse length b) 0.5mm beam width c) 0.4mm wavelength d) 9mm spatial pulse length

In the Incident Management System, what is the Incident Commander responsible for?

You are presented with a pt who suffered a GSW to the leg. There is spurting blood from an open wound.Direct pressure is ineffective. What action should the paramedic take next?