Core Sonography Canada Exam/108 Q’s and
A’s (Formulas and some basics for the Core
Exam)
What is the Doppler Shift Formula? - -fd = f echo - f transmit
-*What is the formula for resistance?
*What are the units of Resistance - -Units: Pa*s/m^3 or Pa*s/cm^3
Alternate formula = 128nL/πD^4
-What is attenuation proportional to? - -Frequency
-Wavelength equals - -c/f
-1cc= - -1 cm3 = 1mL = 10 -3 L
-What 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?) - -
-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 the object
occupies
*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? - -*CDiff
Same as contact except extra housecleaning
-*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 and Contact?
*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
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