Mock

What causes electrons to move from the cathode to the anode in an x-ray tube?

When scheduled for a routine GI exam, how should the patient prep?

a grid has lead strips which are 6 mm wide, 8 mm high, 12" long & spaced 0.5 mm apart. What is the ratio of the grid?

The most effecient devivce for reducing the amount of scattered radiation reaching the IR is the:

Which of the following is LEAST likely to demonstrate the odontoid process clearly?

Which study will MOST LIKELY demonstrate a meckel's diverticulum?

In digital image processing, the mapping function where all pixels are changed to a new gray value is called the:

Which of the these pathological conditions will MOST LIKELY require an increase in radiographic exposure for proper RE?

Which of these positions will demonstrate the intercondylar fossa of the femur?

The bucky slot cover & protective curtain used during fluoro procedures should have at least ___mm Pb equivalent.

Moire artifacts result from:

A readout on the fluoro monitor that indicates air kerma striking the surface of the patient is:

In digital imaging, graphical representation of signal intensity values correspond to a spectrum of pixel values called:

Sources of natural background radiation exposure include:

Computed radiography may be part of an integrated system of images and written data called:

For the same FOV, as the matrix size increases:

CXR has been ordered for placement of a Swan-Ganz catheter. The Swan-Ganz catheter is a(n):

Arrange the following in the correct sequence of scheduling:

Of the positions given, which will BEST demonstrate a fracture in the axillary portion of the left ribs?

The term used to describe the number of bits per pixel, which has a significant effect on gray scale, is?

For an AP axial Towne projection for the skull, the CR is directed:

A portable chest shows magnification; it can be reduced by:

Which of the following will influence geometric unsharpness?

The major concern of genetic damage in the ovaries/testes by irradiation is that it can affect:

Diagnostic primary barriers must contain a minimum thickness of ___ Pb equivalent.

When a lateral projection of the knee is performed, the knee should be:

Per federal standards, what max. exposure rate tabletop in general fluoro is permitted in absence of high level control?

In which of the following of the spine is a lordotic curve normally found:

Free radicals have an extremely reactive single entity as a result of the presence of:

Which of the following methods results in the elimination of all bacteria including disease producing organisms?

The most effective method used to prevent the spread of infection is:

The number of facial bones is:

Patient exposure may be reduced by all of the following EXCEPT:

For stationary diagnostic procedures, the SSD shall not be less than:

The highest spatial frequency that can be recorded by a digital detector, is half the number of pixels/mm?

When a patient is vomiting, the head is lifted and/or turned to the side in order to prevent:

If necessary to hold a critical patient durin x-ray, the LEAST acceptable person to assist would be:

The law of Bergonie & Tribondeau states that the most radiation sensitive cells in the body are:

When performing an IVP, the radiographer should:

The annual NID is:

The filament and the target of the anode in an x-ray tube are composed predominately of:

For females, flat contact shields reduce gonodal exposures only:

Occupational exposure limits are stated in the NCRP Report #:

Bedside exams require a wide range of SID/ positioning adaptations, which grid ratio is LEAST likely give grid cutoff?

The head of the radius is best demonstrated free of superimposition in which of the following?

When dealing w/ a trauma patient, which of the following is not advisable for the radiographer to do?

Patient in LPO w/ CR directed 20 degrees cephalic & enters at level of thyroid cartilage, best shown in profile is:

What is the BEST position/projection to demonstrate the longitudinal arch of the foot?

the site of needle insertion in knee arthrography is:

All the energy of primary photon is dislodged in an inner-shell electron, What effect is this?

Which of the following is the best device to use to measure in-air exposures in fluoro rooms?

Which substance should be given when a diabetic pt suddenly starts experiencing weakness, sweating, tremor and hunger?

The device in the x-ray circuit which allows the technologist to select a variable kilovoltage is the:

In order to place the neck of the femur parallel w/plane of the film w/patient supine, it is necessary to:

To reduce natural lordosis of the spine & demonstrate the intervertebral spaces of the lumar spine in AP, one should:

The source of radiation with the greatest RBE is:

As sampling frequency increases, what happens to spatial resolution?

In myelography, the contrast medium is generally injected into the:

In order to demonstrate the ankle mortise correctly in profile w/o overlapping of adjacent structures, which is the best

Which of the following may result in occupational exposure for a radiographer?

Which of the following is NOT designed to lessen patient dosage?

Per federal standards, techs should wear a protective apron during fluoro that has a MINIMUM Pb equivalent thickness of:

Which tissue is LEAST sensitive to ionizing radiation:

Which radiographic examination requires filming during micturition?

A digital image is composed of rows and columns known as:

For a submento-vertical projection of the skull, the CR enters:

Where should the CR be directed for an AP Pelvis?

When performing lateral studies of the foot or ankle, the foot should be placed in:

How is the CR directed for a tunnel view of the knee?

Nosocomial infections are those that are contracted by an individual:

Which of the following would best demonstrate a small pneumo-thorax in the left thoracic cavity?

Movement of a patient in pain should be:

Which personnel monitoring device is the most sensitive & accurate?

The manubrial notch is approximately at the same level as the:

Which of these is not a property of x-rays?

Which of the following is not dependent on the wavelength of the x-rays?

Injection of iodinated contrast media is contraindicated if BUN exceeds ___mg/dl & creatinine is above __mg/dl

Which of the following tissues is assigned the highest tissue weighting factor?

The interaction with matter that produces secondary or characteristic radiation is the:

For fixed fluoroscopes, the SID shall not be less than:

Misalignment of the light field & radiation must not exceed __%

Which unit of measurement is used for effective dose limits?

Quantom mottle is caused by:

Excessive prep time (stage one) in using the x-ray exposure switch is most likely to lead to:

Which of the following would NOT reduce the amount of secondary/scatter radiation that is produced w/in a body part?

National standards recommend that the minimum amount of total filtration at settings higher than 70 kVp be:

"Ten Day Rule"; performing a radiation study on a femal patient w/in childbearing age should be limited to the 10 days:

The SI unit of absorbed dose is the:

What is another name for "nosocomial infection"?

The absorption of useful radiation by a grid is called:

Which of the following are both needed to measure blood pressure?

If unable to perform routine Townes for occipital area, what can be substituted?

Protective (reverse) isolation is most likely to be used for patients with:

Which of the following would be within the normal range of respiration for an adult at rest?

When disposing of the contaminated needles, they are placed in special containers in which of the following manners?

When performing a clavicle supine, the clavicle is projected away from overlying ribs BEST by:

The phosphor which emits the yellow-green luminescence of a conventional fluoroscopic screen is typically:

When using the Water's position, the CR enters the top of the head and exits at the"

Which is the MOST APPROPRIATE for radiography in the operating room?

Which of these studies is most likely to deonstrate evidence of a herniated nucleus pulposis?