Questions and Answers
Radiographic recorded detail is inversely related to _____ and _____?
OID, imaging-system speed
SID affects recorded detail in which of the following ways?
The Heimlich maneuver is used if a patient is _____?
choking
Which of the following is an inappropriate manner of speaking to a patient?
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Secondary radiation barriers usually require the following thickness of shielding: _____?
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Which of the following statements regarding film badges is (are) correct?
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Conditions in which there is a lack of normal bone calcification include _____?
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Results from a deficiency of vitamin D and usually is found affecting the growing bones of young children?
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The pain experienced by an individual whose coronary arteries are not conveying sufficient blood to the heart is called _____?
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Slow heart rate is called _____?
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Rapid heart rate is called _____?
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Angina pectoris may be relieved by the drug _____?
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A small container holding several doses of medication is termed _____?
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Is a small container that usually holds a single dose of medication?
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Is a narrow-mouthed container?
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Backscatter on a digital image can cause an artifact called a _____?
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Types of gonadal shielding include which of the following?
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Which of the following is considered the unit of exposure in air?
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Radiation absorbed dose is referred to as _____?
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Radiation-equivalent man is termed _____?
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Is used to determine biologic damage in living tissue _____?
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Which of the following radiation situations is potentially the most harmful?
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Which of the following personnel radiation monitors will provide an immediate reading?
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According to the National Council on Radiation Protection and Measurements (NCRP), the gestational dose-equivalent limit for embryo/fetus of a pregnant radiographer is _____?
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All the following statements regarding mobile radiographic equipment are true except:
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The device used to test the accuracy of the x-ray timer is the _____?
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QA was being performed on a three-phase, full-wave-rectified x-ray unit. A synchronous spinning-top test was performed using 300 mA, 60 ms, and 70 kVp, and a 22-degree arc is observed on the test film. Which of the following statements regarding these results is most correct?
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The reduction in x-ray photon intensity as the photon passes through a material is termed _____?
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In order to avoid background radiation artifacts when using CR, it is important to: _____?
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All the following positions are likely to be employed for both single- and double-contrast examinations of the large bowel except:
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For an AP projection of the knee on a patient whose measurement from ASIS to tabletop is 21 cm, which CR direction will best demonstrate the knee joint?
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The CR should be directed to the center of the part of greatest interest to avoid _____?
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Study Notes
Radiographic Principles
- Radiographic recorded detail is inversely related to OID (Object-to-Image Distance) and imaging-system speed.
- SID (Source-to-Image Distance) is directly related to recorded detail.
Medical Procedures
- The Heimlich maneuver is employed when a patient is choking.
- Inappropriate communication with patients includes remarks like “I have several other patients, so please change quickly.”
Radiation Safety
- Secondary radiation barriers must have a minimum thickness of 1/32-inch lead.
- Film badges should remain at the workplace and measure both the quantity and quality of radiation exposure.
Bone Disorders
- Rickets and osteomalacia are conditions characterized by a lack of normal bone calcification.
- Rickets is particularly associated with vitamin D deficiency, impacting the growing bones of young children.
Cardiovascular Terms
- Angina pectoris refers to chest pain from inadequate blood flow to the heart.
- Bradycardia indicates a slow heart rate, while tachycardia signifies a rapid heartbeat.
- Nitroglycerin is a medication that can relieve angina pectoris.
Medication Containers
- A vial is a small container holding several doses of medication.
- An ampule contains a single dose of medication, while a carafe is a narrow-mouthed container.
Image Artifacts
- Backscatter on a digital image may result in a phantom image artifact.
Gonadal Shielding
- Types of gonadal shielding include flat contact, shaped contact (contour), and shadow.
Radiation Measurement Units
- Roentgen (C/kg) is the unit of exposure in air.
- Rad (Gy) is the unit for radiation absorbed dose, and rem is the unit for radiation-equivalent man.
- RBE (Relative Biological Effectiveness) measures biological damage in living tissue.
Radiation Exposure Risks
- A large dose of radiation to the whole body all at once is potentially the most harmful radiation situation.
- Pocket dosimeters provide immediate readings for personnel radiation monitoring.
Pregnancy and Radiation
- NCRP specifies a gestational dose-equivalent limit of 0.5 mSv for the embryo/fetus of a pregnant radiographer.
Mobile Radiography
- Mobile radiographic equipment requires that exposure switches must be the two-stage type for safety.
X-ray Technology
- The spinner top is used for testing the accuracy of the x-ray timer.
- A satisfactory QA test result is observed with a 22-degree arc on the synchronous spinning-top test under specific conditions.
X-ray Interactions
- Attenuation refers to the reduction of x-ray photon intensity as it passes through material.
CR Image Management
- To avoid background radiation artifacts in CR (Computed Radiography), erase image plates after 48 hours of non-use or if there’s uncertainty regarding their usage history.
Radiographic Positioning
- The right and left lateral decubitus abdomen positions are not commonly used for both single- and double-contrast examinations of the large bowel.
- For an AP projection of the knee with an ASIS-to-tabletop measurement of 21 cm, the CR should be directed at 0 degrees (perpendicular) to best demonstrate the joint.
- Direct the CR to the center of the area of interest to prevent rotation distortion.
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Description
Test your knowledge on key concepts of radiographic principles, medical procedures, and radiation safety. This quiz also covers bone disorders and cardiovascular terms. Perfect for students in health and medical fields.
