Patient Safety in Computed Tomography Answers to Common Questions
5 views 0 purchase
Course
Patient Safety in Computed Tomography
Institution
Patient Safety In Computed Tomography
Patient Safety in Computed Tomography Answers to Common Questions
The ____________ measures the amount of radiation in the surrounding air. - CORRECT ANSWER -
roentgen
The _______ is the measurement of how much radiation is absorbed. - CORRECT ANSWER - rad
The _______ is used for monitoring per...
Patient Safety in Computed Tomography Answers to Common Questions
The ____________ measures the amount of radiation in the surrounding air. - CORRECT ANSWER -
roentgen
The _______ is the measurement of how much radiation is absorbed. - CORRECT ANSWER - rad
The _______ is used for monitoring personnel radiation dose. - CORRECT ANSWER - rem
The _________ _________ of ________ or SI units is the standardized measurement of radiation
exposure established by the international community. - CORRECT ANSWER - International System of
Units
The rad has been replaced by the ________ and the rem has been replaced by the _________ in SI units.
- CORRECT ANSWER - gray (Gy)
Sievert (Sv)
Convert the following radiation units to SI units:
A. 500 rad:
B.300 rem: - CORRECT ANSWER - 5 Gy
3 Sv
The CT dose index (CTDI) is used to measure the radiation exposure for a _________-________ scanner.
- CORRECT ANSWER - single-slice
The ________ __________ _________ is the most accurate dose index for Computed Tomography. -
CORRECT ANSWER - Dose Length Product (DLP)
, What is the DLP equation? - CORRECT ANSWER - DLP = CTDIvol x Scan Length
What does ALARA stand for? - CORRECT ANSWER - As Low As Reasonably Achievable
How is the patient shielded when a CT scan is performed? - CORRECT ANSWER - Shielding is applied 360
degrees around the patient because radiation comes from all directions in CT
_______ controls the ability of the x-ray beam to penetrate tissue and controls __________ on the
image. - CORRECT ANSWER - kVp
contrast
________ controls the number of x-ray photons produced by the CT x-ray tube. - CORRECT ANSWER -
mAs
An increase in mAs will result in ___________ noise and __________ radiation exposure to the patient. -
CORRECT ANSWER - decreased
increased
CT Scanners use a type of automatic exposure control called ______ _____________. - CORRECT
ANSWER - mA modulation
What mA modulation is called for a:
A. GE Scanner:
B. Siemens Scanner: - CORRECT ANSWER - auto mA
Care dose
The CT technologist changes mA based on what 3 patient factors? - CORRECT ANSWER - A. Body habitus
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 Labsolutions. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.99. You're not tied to anything after your purchase.
