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Radiology Questions

Explore questions in the Radiology category that you can ask Spark.E!

A .5 mm lead gonadal shield will reduce female gonadal exposure by approximately what percentage?A. 25%B. 50%C. 75%D. 99%

If a beam has a HVL of 2 mm Al, then 2 mm Al will reduce the quantity of the beam by

How can a fast film-screen combination reduce patient exposure?A. Requires less kVpB. Allows for smaller focal spot sizeC. Allows for a reduction in mAsD. Eliminates the need for a grid

Which of the following examinations would NOT allow male gonadal shielding?A. Intravenous urogramB. Pelvis examinationC. Knee arthrogramD. Voiding cystourethrogram

An embryo-fetus is limited to ____ mSv for the period

Which of the following effects will result from precise collimation?1. Less biological tissue is exposed2. Less scatter radiation is produced3. Radiographic quality is improved4. All of the above

What is the equivalent dose limit for an embryo-fetus?A. .1 mSv/monthB. .5 mSv/monthC. 1.5 mSv/monthD. 5.0 mSv/month

Which of the following has the greatest effect on the amount of radiation exposure to the patient?A. Focal spot sizeB. SIDC. Size of exposed areaD. Type of grid (linear or crossed)

Which of the following will reduce radiation exposure to the patient if done by the radiologist during a fluoroscopic study?A. Magnifying the fluoroscopic imageB. Intermittent exposuresC. Using the gridD. Increasing the field of view

how many rems during 2-8 weeks of pregnancy can cause abnormalities

Which of the following is a means of expressing the dose a patient has received from a radiographic examination?1. Skin dose2. Organ dose3. Whole body dose4. All of the above

A fetus is most vulnerable to radiation during which of the following time periods?A. First trimesterB. Second trimesterC. Third trimesterD. Fourth trimester

According to NCRP #102, when using over 70 kVp, the total beam filtration must be how much?A. 1.5 mm AlB. 2.5 mm AlC. 3.5 mm AlD. 4.5 mm Al

When using mobile radiographic equipment, the source-to-skin distance cannot be less than what?A. 12"B. 24"C. 36"D. 48"

Which of the following situations would cause the greatest skin dose to a patient?A. Short SIDB. Long SIDC. Small focal spot sizeD. Highest practical kilovoltage

Which of the following radiographic procedures will require gonadal shielding?A. ChestB. KneeC. Unilateral hipD. Skull series

Which type of gonadal shielding could be used for a patient having an exam requiring a sterile field?A. Lead sheetB. Lead apronC. Shadow shieldD. Pseudo shield

Which of the following is the best method for determining if a female patient is pregnant?A. 28 day ruleB. Determine her last menstrual cycleC. Urine pregnancy testD. Blood pregnancy test

what is the name of the filtration that is permanent part of the x-ray tube head 1. added filtration2. inherent filtration3. compensating filtration 4. stem filtration

Which of the following will reduce exposure to the patient as well as improve image contrast?A. Increase grid ratioB. Beam restrictionC. Increase kVpD. Decrease SID

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