URR

Sensitivity CORRECT ANSWERS: ability of a test to detect disease when it IS present Specificity CORRECT ANSWERS: ability of a test to rule out disease when it is NOT present Positive Predictive Value (PPV) CORRECT ANSWERS: Calculates how often a positive study is correctly diagnosed: ability of an exam to predict the presence of disease (# true positive tests / total # positive tests) Negative Predictive Value (NPV) CORRECT ANSWERS: Calculates how often a negative study is correctly...

what is an artifact CORRECT ANSWERS: echo that do not correspond actual with anatomy, not in right location, size or shape, Too bright or dark, missing from image completely. propagation artifacts CORRECT ANSWERS: occur due to bending (refraction), redirection (reflection) or reverberation of sound.` what is degraded in propagation artifacts CORRECT ANSWERS: lateral resolution reverberation is CORRECT ANSWERS: caused by repeated reflection of ultrasound back and forth between two cl...

All of the following are contraindications for a liver transplant, EXCEPT: a) Hepatitis C b) Current alcohol abuse c) Extrahepatic malignancy d) Cholangiocarcinoma CORRECT ANSWERS: Hepatitis C Which of the following requires health care providers and organizations to develop and follow procedures that ensure the confidentiality and security of protected health information? a) Stark Law b) ALARA principle c) Health insurance portability and accountability act d) Informed consent ...

B. Dampen soft cloth to cleanse probe with mild liquid soap *You need to remove probe cover and use running water to remove any debris or gel. Dry probe with soft cloth or paper towel. CORRECT ANSWERS: Which of the following is correct referring to cleaning a transducer as part of a high level disinfection procedure? A. Dry probe with toilet paper B. Dampen soft cloth to cleanse probe with mild liquid soap C. Rinse probe with alcohol D. Use just running water to remove any debris or gel...

TumFactive sludge can be found in CORRECT ANSWERS: Gallbladder Which of the following should be performed on the patient with suspected acute renal failure CORRECT ANSWERS: Evaluate the post void bladder volume A patient presents for an abdominal ultrasound exam due to recent general pain in the abdomen. While reviewing the patient chart, you know that they have a CT of the abdomen with contrast that is scheduled immediately after the ultrasound appointment. How should you proceed CORRE...

A right adrenal mass will displace the IVC CORRECT ANSWERS: Medially What can be used to alter the display and brightness of the image after it has been stored in the memory? CORRECT ANSWERS: Postprocessing You are evaluating an obese patient with a known AAA. While using color Doppler to assess flow within the aneurysm, minimal flow is detected in the anechoic lumen. You decrease the color scale and increase the color gain but there is no improvement. Which of the following adjustments ...

If a renal artery Doppler exam demonstrates normal flow, but stenosis is identified on angiography evaluation, the US results are described as: a.) False negative b.) False positive c.) True negative d.) True positive CORRECT ANSWERS: a.) False negative What information from an angiography report can be correlated with the ultrasound results? a.) Diameter stenosis b.) Areas of turbulent flow C.) Area stenosis D.) Flow velocity CORRECT ANSWERS: a.) Diameter stenosis *Angiography ...