Hypersensitivity to Ultrasound Enhancing Agents: Update on ASE Recommendations on Safety and Echo Lab Policy - Pre Test Your participation matters to us! To help us provide the best possible educational programming, please complete the pre-test.1. Which of the following statements is true regarding polyethylene glycol (PEG) in ultrasound enhancing agents (UEAs)?* PEG is in all UEAs approved by the United States Food and Drug Administration PEG mediated UEA clearance by the liver and other reticuloendothelial organs PEG is incorporated in shell of some but not all lipid UEAs PEG inserts into the hydrophobic hydrocarbon domain of UEA shells PEG is necessary for the generation of acoustic signals in UEAs 2. Previous hypersensitivity to which of the following is considered a contraindication to using lipid-based UEAs approved by the US Food and Drug Administration?* Bowel preps used for colonoscopy PEG Miralax (macrogol) All of the above None of the above EmailThis field is for validation purposes and should be left unchanged.