Core Sonography Canada Practice Exam with Answers (170 Solved Questions)

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Core Sonography Canada ExamWhat is the Doppler Shift Formula?fd = f echo-f transmit*What is the formula for resistance?*What are the units of ResistanceUnits: Pas/m^3 or Pas/cm^3Alternate formula = 128nL/πD^4What is attenuation proportionalto?FrequencyWavelength equalsc/f1cc=1 cm3 = 1mL = 10-3 LWhat is the formula for Frame Rate?What is the formula for Pulse Period?What is the Formula for Spatial Pulse Length?What is the Formula for Doppler Frequency? (with Velocity)What is the formula for Velocity (for Doppler Imaging?)

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What are some other versions of the Doppler Velocity Formula?What is the formula for Pulse Repetition Frequency?*What is Volume?*What are the Units of Volume?*Volume is the amount of space theobject occupies* CC = cm3, mL, L, mm3, oz, gallons, m3*What is the formula for flow?*What law is this regarding?Poiseuille's Law*What diseases are contact precautions?*What precautions are taken?*CDiff, MRSA, Lice, Scabies, CPO, VRE*Gloves, gown, [face and eye protection as per risk assessment]. Hand hygiene.-Sign on door-Door may remain open.What diseases are Contact Plus?*What extra precautions are taken compared to regular contact?*CDiffSame as contact except extra housecleaning

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*What diseases are Droplet?*What precautions are taken?*Meningitis, mumps, pertussis (whooping cough).*Mask, eye protection, hand hygiene,-Sign on door. 2 m separation between patients.-Door can remain open.*What diseases are both Droplet andContact?*What precautions are taken?*Flu, strep, rubella.*Gloves, gown, mask, eye protection, hand hygiene-Sign on door. 2 m separation between patients.-Door can remain open.*What diseases are airborne?*What precautions are taken?*TB, measles.*N95 Respirator.-Sign on door. Private neg pressure room with private bathroom.-Door closed.*What diseases are both airborne and contact?*What precautions are taken?*Chicken Pox*N95 Respirator, gown, gloves, hand hygieneSign on door. Private neg pressure room with private bathroom.-Door closed.Increasing your frequency results in:(list as many things as you can think of)*Shorter period*Shorter pulse duration*Shorter spatial pulse length*A potentially greater bandwidth (depending on transducer design)*Potentially better longitudinal resolution (axial)*Potentially better lateral resolution (more pencil like beam)*Loss of penetration (more attenuation)

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*What is the formula for Density?*What are the units of Density?*mass/volumekg/m^3= Pas^2/m^2*What does the coefficient of Viscocity measure?*What are it's units?*How much internal friction a fluid hasPas*What is the formula for Pressure?*What are the units?*Force/Area*N/m2 = Pa, dynes/cm2, lbs/in2 = psi, lbs/ft2Torr =mmHg, atmospheres*What are the values for one atmosphere?(1 atmosphere = ________)760 Torr = 760 mmHg = 101.3 kPa = 14.7 psiWhat is the formula for Intensity Reflection Coefficient?What is the formula for Snell's law (refraction)?What two thingsmust you have for refraction to take place?*Must have an oblique angle of incidence*Speeds of sound in each medium must be different*What is the formula for intensity?*What are the units for Intensity?*Energy/(Time)(Area) = Power/Area*W/m2, mW/cm2

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*What is the formula we use for determining decibels?(relative intensity)*What is the formula for Near Field Length?*What is another name for the Near Field?Fresnel Zone*What is the formula for the Divergence angle?*What area of the beamis the divergence angle in?*Far field Aka: Fraunhofer zone*What is the formula for Gauge pressure?Is the difference between the absolute pressure and one standard atmosphereWhat is the approx pressure amplitudes of Diagnostic Ultrasound waves?5.0-6.0 MpaUltrasound is:A longitudinal mechanical wave with a frequency greater than 20 kHzWhat is Pascal's Principle?When a force is exerted on a CLOSED fluid, the pressure within the fluid increasesEQUALLY throughout the fluid.What is the formula for acceleration of gravity?g = 9.81 m/s2The formula for pressure at height, h is:

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