Ctrl + F is the shortcut in your browser or operating system that allows you to find words or questions quickly.
Ctrl + Tab to move to the next tab to the right and Ctrl + Shift + Tab to move to the next tab to the left.
On a phone or tablet, tap the menu icon in the upper-right corner of the window; Select "Find in Page" to search a question.
Share UsSharing is Caring
It's the biggest motivation to help us to make the site better by sharing this to your friends or classmates.
A non-invasive technique that uses strong magnetic fields and radio waves to generate detailed images of a body's internal structures for diagnostic purposes.
When and how often should you be fit tested for an N-95 mask?
With a smaller OID there is better recorded detail.
What is beam quality?
THE SIGNAL INDUCED IN A RECEIVER COIL IMMEDIATELY FOLLOWING AN RF EXCITATION PULSE IS KNOWN AS THE
Magnets that utilize direct current applied to a coil of wire, and are submerged in liquid helium or cryogen to cool the wires.
How does Filtration remove patient exposure?
When is a sharps container considered full?
If 256 frequency samples are collected and the readout or sampling period is 8 ms, the receiver bandwidth would be
What are other words used for Recorded Detail?
How is the best image obtained?
RF SHIELDING IS KNOWN AS A
When a patient comes for an exam who has had a nuclear medicine study within 48 hours you should:
A narrow bandwidth allows for _slices
Which of the following constitute and infection control hazard? (check all that apply)
What is a major infulence on the size and sharpness of an image?
When performing examination on patient who is on "droplet precautions", what precautions should be taken?
WHEN DOES PHASE ENCODING TAKE PLACE
What controls beam quality?
How is Beam Modification used?
Wires are aligned side by side to create magnet field
Raising the KVp by 15% will?
These substances exhibit positive suseptibility, but when placed in an external magnetic field they will remain magnetized when external magnetic field is removed
For Infection Control and Prevention those working with patients should wear nothing below the:
Permanent magnets have field strengths of
Code ________ indicates Fire.
What areas are contrast used in?
The degree of blackening an image?
Daisy arrives for work in x-ray in open, mesh-type sandals. What does her supervisor direct her to do prior to starting duty?
What are some exposure factors? (aka Technique)
What does the Remnant beam do?
Staff should notify their supervisor of all safety concerns.
What does KVp control?
If you lower you KVp, what happens to your image?
Substances that exhibit a slight increase in the magnetic field when placed in an externally applied magnetic field. They have low and positive susceptibility.
Magnets made of blocks or slabs or naturally occurring ferrous material.
The gyromagnetic ratio of h+ in 1 T is
This magnet can be used in horizontal or vertical field system, and have strengths up to 0.3 T, and can be turned off.
The __ Shift person is to check each room for safe working conditions each morning.
If the KVp is increased what kind of image do you get?
The majority of superconducting magnets are __ in design and exhibit a (horizontal or vertical) magnetiic field.
If you have been poked by a used needle you should:
THE FID CAN BE ALTERED BY
THE CHEMICAL SHIFT BETWEEN FAT AND WATER AT 1.5 T IS __, OR H + WATER WILL PRECESS THIS MUCH FASTER THAN THE H+ IN FAT
What is the source of x-rays?
This gradient coil varies the intensity of the magnetic field in the head to foot direction
Decreasing the KVp by 15% will?
What specialty department uses Film/Screen Combinations?
SLICE THICKNESS IS DETERMINED BY THESE 2 THINGS
More radiaiton makes an image
Film/Screen Combinations are also used to produce a particular scale of contrast
Contrast is need to view the visibility of detail.
10000 gauss = _ Tesla
Major components of Fluoroscopic Image?
What do the stream of electrons need to do in order to produce an x-ray?
Step 1 for needle poke, cut or bite includes which of the following: (check all that apply)
What are (6) characteristics of x-rays?
Fuzzy border of an object on a radiograph?
What happens when scatter radiation reaches the IR, what will it do?
IF A THICKER SLICE IS DESIRED
A way to express the gradient performance referring to the acceleration of the gradient magnetic field to its maximum amplitude, expressed in units of T/m/s.
What is under the direct control of the radiographer to produce quality radiographs?
Staff should wear their identification badges:
What is responsible for the production of densities of the radiograph?
Superconductive magnets are limited to _ T in clinical MRI by the FDA.
How often should work surfaces be disinfected?
This type of magnetic shielding uses other magnets and their associated magnetic field to confine the field of the main magnet
Changing either mA or S will cause a change in the degree of blackening?
What does KVp do?
A Film/Screen Combinations are cassettes with intensifying screens that emit a specific color of light and the x-ray film that is sensitive to that same color of light
If the KVp has more energy what does it have?
What is a latent image?
When may employees who do not get immunized during the Immunization Program, but decide to get immunized when an outbreak occurs, return to work?
The receiver bandwidth is determined by the number of
The receiver gandwidth represents the range of frequencies sampled during the
THE OUTER LINES OF K SPACE HOLD
Allow for increased area of coverage without the reduction in SNR, have multiple coils and receivers.
Less radiation makes an image?
How does distance affect density?
These substances exhibit positive suseptibility , are stronger than paramagnetic substances, but are weaker than ferromagnetic substances, and are used as T2 contrast agents
A higher ratio of lead strips will give a better clan up of scatter ratio
This type magnetic shielding uses metal, usually steel, in the scan room walls to contain the fringe field
Require the use of solenoid coils due to the orientation of the B0, more effiecient than linear coil, and can be combine with other coils electronically to improve signal uniformity through a region of interest.
Attenuation is a process by which the primary beam is reduced in energy as it passes through the patient (Absorbed)
How can object unsharpness be lessened? Correct use of:
Main controlling factor of contrast?
What is the basis for radiographic contrast that attenuate the primary beam to differing degrees?
How can voluntary motion be controlled?
What is size distortion most affected by?
THE PHASE ENCODING GRADIENT REPRESENTS
What can under or over development in the chemical processing do?
How can involuntry motion be controlled?
Changing the mAs will have an effect on the beam
THE DIFFERENCE IN PRECESSIONAL FREQUENCY OF THE HYDROGEN IN FAT AND WATER IS KNOWN AS
THE ONLY WAY THE SPATIAL RESOLUTION CAN INCREASED IS TO
The main purpose of the gradient subsystem is to
This gradient coil varies the intensity of the magnetic field in the right to left direction
Where is the x-ray safety manual located? (choose most correct)
If you are with a patient in Room 3 and you hear Code Red paged over head, you should: (check all that apply)
What results with a fast film speed (Less Radiation) ?
When does Attenuation vary?
The true border of an object as seen on a radiograph?
WHEN IS THE SLICE SELECTION GRADIENT APPLIED
What does KVp INDIRECTLY control? (15% rule)
Motion is NOT the most common cause of radiographic unsharpness
The slice location is determined by the
THE DIFFERENCE IN PRECESSIONAL FREQUENCY, DUE TO THE CHEMICAL/MOLECULAR ENVIRONMENT, IS KNOWN AS
What are types of Beam Limitations?
What DIRECTLY controls the energy/penetrating ability of the primary beam?
THE MIDDLE LINES OF K SPACE CONTAIN OVER 90% OF THE
The chemicals for processing must be at proper?
Gadilinium is an example of a _ substance
TO EVALUATE IMAGES WITH T2* CONTRAST _ IMAGES ARE REQUIRED
To result in equivalent mAs values, mA & time must change in the opposite direction by the same factor; If you raise one you have to lower the other
These coils utilize additional loops and circiutry to improve the efficiency with which the MR signal is induced in the coil, and increase SNR approximately 40% over the coil of the same size.
What are the steps taken to turn "Latnet Images" into visible images?
What is a Grid Ratio?
What are Grids?
What consists of many lead strips separated by a radiolucent material placed between the patient and the IR?
These substances exhibit a very slight negative or repelling effect when placed in externally applied magnetic field. They have low and negative susceptibility.
System Speed is an arbitrary number given to a specific system. Average speed = 100
What do Beam Modification result in?
A difference of attenuation causes a formation of the image?
The visible difference between adjacent radiographic densities?
What will happen if you lower KVp?
MRSA stands for:
What are the major types of image receptors?
Heartbeat & Peristalsis CAN be controlled by the patient
What is needed to cause the e-stream to accelerate at an extremely high speed from the cathode to the anode?
What happens if you increase KVp?
Static Images are Spot Films cassettes that are exposed by the remnant beam
To keep up this site, we need your assistance. A little gift will help us alot.
Donate- The more you give the more you receive.
Related SubjectMammography
Diagnostic Cardiac Sonography
Photography
Inquiries Investigations and Immersion
Adipose Tissue
Fundamentals of Nursing Practice
Health Assessment
Physical Therapist Assistant
Public Health
Paramedic
Phlebotomy
Medical Assistant
Medical Office Administration
Nursing: Registered Nurse
Health Sciences
Health Care Office Manager
Dietetic Internship
Emergency Medical Services
Cannabis Science and Therapeutics
Microbiology and Parasitology
Introduction to Psychology
Massage Machines
Knowledge Management
Office Assistant
Maintenance Technology
Engineering
Drone Technlogy and Applications
Education
Electronics Engineering Technology
Computer Information Systems
Audio and Video Arts Technology
The Contemporary World
Technology for teaching and learning in Elementary Grades
Teaching Math in the Intermediate Grades
Science Technology and Society
Living in the Information Technology Era
Information Technology Capstone Project
Earth Science
Shopee Helmet
Shopee 3D Floor
Lazada Smart TV Box