ESSENTIALS EXAM 2025 | QUESTIONS|
WITH 100% VERIFIED ANSWERS!! 2024 -
2025 LATEST UPDATE
, Power injecting - ANSWERcontrols volume, contrast, flow rate, linear rise, pounds per
square inch (psi) of pressure for each injections
Flow rate - ANSWERFlow rate = volume of fluid over time (sec)
ex: 30 mL contrast (v) to inject at 15mL/s for 2 sec
Catheter flow rate - ANSWERDepends on length, diameter & # of side holes
ex: longer; greater resistance, lower flow rate
larger inner diameter catheters have less resistance, better flow so high injection rates
the window level controls - ANSWERdensity (brightness/darkness)
the window width controls - ANSWERcontrast (differences)
what occurs when the mask and the series images are not alligned -
ANSWERmisregistration
the diameter of a guidewire is measured and expressed in units of -
ANSWERmillimeters or fractions of an inch (.018, 0.35)
the control film used in subtraction radiography is also referred to as - ANSWERzero
film or base film
Polyethylene or polyvinyl catheters - ANSWERincrease friction between interior of
catheter and contrast
-needs low flow rate
Teflun catheters - ANSWERdecreased friction w/ contrast
-high flow rate
True or false: increasing contrast viscosity increases resistance, so must have a lower
flow rate - ANSWERTrue
Rate rise - ANSWERaka "linear rise" when contrast volume reaches peak delivery
-gradually increases PSI instead of all at once
-decreases liklihood of catheter recoil
ringers solution contains - ANSWERsodium, potassium, calcium, chloride
french refers to outer diameter
1 Fr = - ANSWER1/3 mm or .33mm
the wall stent is what type of stent - ANSWERself expanding stent