A patient in the radiolo - Study guides, Class notes & Summaries

1. Introduction The term “placenta” originates from the Greek word plakuos, which means “flat cake”. Indeed, placenta is the “cake” for the fetus, as it is responsible for its nutrition and its respiratory and excretory function. Prenatal evaluation of the abnormal placenta is a “hot” topic for both gynecologists and radiologists; early identification of invasive placenta and accurate preoperative diagnosis regarding the degree of myometrial invasion and extrauterine...

Units of radiation absorbed in the air? Gya The change in the x-ray beam as it travels through a patient? attenuation photon tissue interaction that makes radiology possible because of it's creation of contrast? photoelectric interaction (fully absorbed = contrast) Unit of radioactivity? becquerel unit of effective dose? Sievert Linear energy transfer ... varies for different types of radiation unit of Bq would be used in what imaging modality? N...

Which type of contrast agent is preferred for low risk and low cost for a patient diagnosed with a possible perforated bowel? Ionic, water soluble, diluted with juice. A patient in the radiology department suddenly develops a nosebleed. The radiographer instructs the patient to lean forward and pinch the affected nostril against the midline nasal cartilage, but the bleeding does not stop. What should the radiographer do next? Apply a moist compress. Which position should a patien...