ct scan…

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what the risks are --> ct scan, cat scan, computed axial tomography, cat, scan, computed tomography, ct, a method of body imaging, a thin x-ray beam rotates around the patient, small detectors measure the amount, x-rays that make it, the patient, particular area of interest, a computer analyzes the data to construct a cross-sectional image, images, stored, viewed on a monitor, printed on film, three-dimensional models of organs, created by stacking the individual images, "slices", asked, lie on a narrow table that slides, center, the scanner, depending on the study performed, lie on stomach, side, contrast dye, administered, an iv, small vein of a hand, arm, standard photographic cameras, motion make causes, blurred images in ct, operator, give instructions, an intercom on, hold breath, the exam takes place, table, advance small intervals, the scanner, modern "spiral" scanners, perform the exam in one continuous motion, generally, complete scans, take a few minutes, additional contrast-enhanced, higher-resolution scans, add, scan time, newest multidetector scanners, image entire body, head to toe, in less than 30 seconds, asked, drink contrast, ct scan, 4 to 6 hours beforehand, contrast non-reactive, chalky-tasting barium sulfate, eventually pass, in the stools, absorbable clear gastrografin solution, asked, fast, no solids, liquids, 4 to 6 hours, contrast dye, ct scanner has a weight limit, prevent damage to its internal mechanisms, have the health care provider contact the scanner operator, weigh more than 300 pounds, x-rays have difficulty passing, metal, remove jewelry, wear a hospital gown, study, x-rays, painless, primary discomfort, need to lie still on the table, intravenous contrast dye is given, initially feel a slight burning sensation, the injected arm, a metallic taste, in the mouth, a warm flushing, sensations, reside, a few seconds, ct provides rapid, detailed cross-sectional imaging, the patient, reconstructed into three-dimensional models, intravenous contrast enhanced scans allow, evaluation of vascular structures, further evaluation of masses, tumors, ct, utilized, in the trauma setting to evaluate the brain, chest, abdomen, ct, guide interventional procedures, biopsies, placement of drainage tubes, ct scans, x-rays, monitored, regulated, the minimum amount, radiation exposure needed to produce the image, ct scans provide low levels of ionizing radiation which has the potential to cause cancer, heritable defects, risk associated, individual scan is small, risk increases, numerous additional studies, pregnancy, an abdominal ct scan, not recommended, due to risk, exposed fetus, developmental malformations, childhood cancers, pregnant should speak, first take a pregnancy test, choose an appropriate alternative imaging modality, risk, fetus, ultrasound, most common intravenous contrast dye is iodine based, a person who is allergic to iodine, seafood allergies, experience nausea, sneezing, vomiting, itching, hives, contrast administration is essential, the prior reactions, choose to pre-medicate the patient, the scan, a short course of immune-suppressing steroids, benadryl, contrast media, imaging modalities, ultrasound, mr, dye, anaphylaxis, a life-threatening allergic response, manifested by swelling, in the airway, patient is instructed, scan to notify the technologist via the intercom, he/she has difficulty breathing, such a rare reaction does take place, exam, rapidly treated, special medication, closely monitored by a physician, iodine-based contrast is primarily filtered out, the bloodstream by the kidneys, patients, diabetes, renal disease, require continuous hydration, close monitoring of kidney function, diabetics on certain a glucose-lowering medication, glucophage/metformin, renal dialysis patients should speak, physician regarding stopping the medication, proper scheduling, the scan in conjunction, dialysis, respectively, consent, designated guardian must be obtained, use of intravenous contrast, why the test is performed, abnormal results, specific ct topics, orbit ct scan, cranial ct scan, lumbosacral spine ct scan, thoracic ct scan.