ASRT - Seal Exam 2 Questions with 100% Verified Correct Answers
17 views 0 purchase
Course
ASRT
Institution
ASRT
ASRT - Seal Exam 2 Questions with 100% Verified Correct Answers
The ________ of the syringe holds the medication for injection.
barrel
plunger
bevel
cap - Correct Answer barrel
The barrel is covered with the printed calibration markings and holds the medication.
MOST cell damage from ion...
ASRT - Seal Exam 2 Questions with 100%
Verified Correct Answers
The ________ of the syringe holds the medication for injection.
barrel
plunger
bevel
cap - Correct Answer barrel
The barrel is covered with the printed calibration markings and holds the medication.
MOST cell damage from ionizing radiation occurs when x-rays interact with:
free radicals.
DNA.
water molecules.
electrons. - Correct Answer water molecules
Most damage occurs when x-rays interact with water molecules. This is because the human body is
approximately 80% water. Irradiation of water atoms results in free radicals.
All of the following affect patient dose, EXCEPT for:
If the exposure rate for a fluoroscopic procedure is 2.5 mGy/hr, the total exposure for a procedure
with 3 minutes of fluoroscopy time would be ______ mGy.
,0.75
0.25
0.125
0.075 - Correct Answer Total exposure is the product of exposure rate and time. 3 minutes is equal to
0.05 hours (3 min/60 min per hr). Exposure = 2.5 mGy/hr x 0.05 hr = 0.125 mGy.
A malignant primary tumor of bone is a(n):
chondrosarcoma
enchondroma
metastasis
osteosarcoma - Correct Answer osteosarcoma
A malignant, primary tumor of bone is an osteosarcoma. Osteo- means bone and -sarcoma means
malignant tumor.
What change produced the differences in the 2 emission spectra below?
( this is the graph with the peak at the right hand side, two lines)
, Focal spot size affects the spatial resolution of an image, not tube output.
Target material and kVp affect x-ray production efficiency which, in turn, affects tube output.
Filtration affects tube output because it attenuates lower energy x-rays.
Radiodermatitis is a local tissue effect of the ________ system.
integumentary
gastrointestinal
hematopoietic
central nervous - Correct Answer integumentary
Types of gonadal shielding include all of the following EXCEPT:
flat contact.
shaped (contour) contact.
shadow.
Ferlic filter. - Correct Answer Ferlic filter.
The Ferlic filter is a type of compensating filter.
If a patient's exposure at a distance of 2 meters is 24 mGy, the exposure at 8 meters would be
________ mGy.
1.5
6
12
18 - Correct Answer According to the inverse square law (I1/I2 = d22/d12), if the distance is doubled,
the exposure decreases to one-fourth of the original value. In this case, the distance was doubled
twice; therefore, the exposure was reduced to one-sixteenth of the original value (2 meters to 4
meters = 6 mGy; then 4 meters to 8 meters = 1.5 mGy).
An acceptable image is produced using 72 kVp, 5 mAs, no grid, and 40-inch SID. If the image is
repeated using a 12:1 grid, ________ mAs would be needed to maintain receptor exposure.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Winfred. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
