Given the following major radiation response stages. Which of the following orders do the Acute Radiation Syndrome (ARS) presents in humans?
1. Manifest illness
2. Recovery or death
3. Prodromal
4. Latent period - ANSWER 3,4,1,2
AnswerFor which of the following, the acronym ALARA stand? - AN...
NHRA 7/8 EXAM QUESTION ANSWERS
Given the following major radiation response stages. Which of the following orders do
the Acute Radiation Syndrome (ARS) presents in humans?
1. Manifest illness
2. Recovery or death
3. Prodromal
4. Latent period - ANSWER 3,4,1,2
AnswerFor which of the following, the acronym ALARA stand? - ANSWER As low as
reasonably achievable
AnswerWhich of the following is the recommended lead thickness for wall protection of
the typical diagnostic X-ray room? - ANSWER 2mm
AnswerWhich of the following is the recommended leakage radiation from the X-ray
tube according to NCRP regulations? - ANSWER 100 mR/hour
AnswerWhich of the following is the unit of absorbed dose? - ANSWER Gray
AnswerWhich of the following is the primary purpose of the radiographic machine filter?
- ANSWER Reduces skin absorption
AnswerGiven the following CT protocol parameters: - ANSWER pitch
AnswerIn C-arm fluoroscopy, why is it preferred to have the positioning of the X-ray
tube under the table and the image intensifier over the table? - ANSWER Results in
lower dose exposure to personnel
AnswerWhich of the following is the primary source of scattered radiation in compton
interaction process? - ANSWER patient
AnswerWhich of the following is the effect of increase in focus-to-film distance while the
film exposure is kept constant? - ANSWER Reduces the geometric non-sharpnes
Answercholecystography scan reveals delayed visualization of the gallbladder and
biliary tree after 4 hours following the injection of 99mTc DISIDA. Which of the following
would best explain the findings? - ANSWER Acute cholecystitis
Answerthyroid scintigraphy scan images reveals a cold nodule. Which of the following
conditions explains the finding? - ANSWER Thyroid carcinoma
AnswerWhich of the following processes helps to restrict the detected emitted radiation
to the given area of interest? - ANSWER Collimation
, AnswerWhich of the following cavity articulates with the femoral head? - ANSWER
Acetabulum
AnswerWhich of the following cavity articulates with the humerus head? - ANSWER
glenoid
Answerpatient with possible lower GIT pathology has come for a barium study series.
The physician requests a special view to show the rectosigmoid segments with less
overlapping of sigmoid loops. Which of the following projection best shows the specific
area? - ANSWER AP axial oblique
AnswerWhich of the following human cells are most radiosensitive? - ANSWER
Embryonic
AnswerWhich of the following facial bones articulates with the maxillary, temporal,
frontal, and sphenoid bones? - ANSWER Zygomatic
AnswerWhich of the following best relates to the end of a long bone? - ANSWER
Epiphysis
AnswerThe first cervical vertebra is known as which of the following? - ANSWER atlas
AnswerWhich of the following vertebral levels corresponds to the lower costal margin? -
ANSWER l2-l3
AnswerWhich of the following is the pathway of the urine flow through the urinary tract?
- ANSWER Pelvis of the kidney → ureter → bladder → urethra
AnswerWhich of the following 2 bones articulates with the ethmoid bone? - ANSWER
Frontal and sphenoid
AnswerWhich of the following is the most anteriorly located heart chamber? - ANSWER
Right ventricle
AnswerWhich of the following describes a normal kidney that fails to ascend into the
abdomen but rather remains in the pelvis? - ANSWER Ectopic
AnswerWhich of the following needles comes with ultrasound enhancement to increase
its visibility under ultrasound? - ANSWER Chiba
AnswerWhich of the following defines Flux gain in fluoroscopy? - ANSWER Number of
output light photons divided by number of input X-ray Photons
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