Rt Simulation Examination 3
This is a Simulated Examination for Gulf RT Examinations taken from Last Month's HAAD Feedbacks.
This examination contains 100 of the most UPDATED EXAMS from Abu Dhabi, KSA, and UAE.
Take this examination for 120 minutes. You need to get 86% to pass the HAAD. 60% to pass MOH, DHA, or Prometrics.
Please text 0919-286-29-29 in the Philippines or visit our website www. Rtonline. Weebly. Com THIS IS YOUR ASSESSMENT FOR ANY GULF RT EXAMINATIONS INCLUDING HAAD RT, SAUDI PROMETRICS, DUBAI DHA, AND UAE MOH. THE QUESTIONS HERE ARE TAKEN FROM THIS ACTUAL EXAMINATIONS, SO PASSING THIS Read moreASSESSMENT EXAM WILL GIVE YOU A HIGH PROBABILITY OF PASSING THE SAID EXAMINATIONS
Questions and Answers
- 1.
Define the Term ALARA
- A.
As low as reasonably achievable
- B.
As low as reliably achievable
- C.
As low as reasonably allowed
- D.
As lasting as reasonably allowed
Correct Answer
A. As low as reasonably achievableExplanation
ALARA stands for "As Low As Reasonably Achievable." This term is commonly used in the field of radiation protection to describe the principle of minimizing exposure to radiation and other hazards to the lowest possible level that is practical and achievable. The goal is to keep radiation doses and risks as low as reasonably possible, taking into account factors such as technology, economics, and social factors. This principle is applied in various industries and settings where radiation is present, such as nuclear power plants, medical imaging, and industrial radiography.Rate this question:
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- 2.
A concept that recommends some basic rules about Radiation
- A.
The 10 commandments
- B.
ALARA
- C.
RAD
- D.
Radiation
Correct Answer
B. ALARAExplanation
ALARA stands for "As Low As Reasonably Achievable" and is a concept that recommends minimizing radiation exposure to the lowest possible level. It suggests implementing safety measures and procedures to reduce radiation risks in various settings, such as medical facilities, nuclear power plants, and industrial sites. ALARA emphasizes the importance of using protective equipment, maintaining distance from radiation sources, and limiting exposure time. By following ALARA principles, individuals can ensure that radiation exposure is kept at the lowest level that is reasonably achievable, thus minimizing potential health risks.Rate this question:
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- 3.
Radiation exposure must have?
- A.
A high enough level to see all of the body
- B.
A low level
- C.
A specific benefit
- D.
A detriment
Correct Answer
C. A specific benefitExplanation
Radiation exposure must have a specific benefit. This means that there should be a clear and identifiable advantage or purpose for exposing the body to radiation. This could include medical procedures such as X-rays or radiation therapy, where the benefits of the procedure outweigh the potential risks of radiation exposure. Without a specific benefit, exposing the body to radiation would be unnecessary and potentially harmful.Rate this question:
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- 4.
All exposure should be kept as low as reasonable achievable
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement "All exposure should be kept as low as reasonably achievable" implies that it is important to minimize exposure to any potential risks or hazards. This means that every effort should be made to reduce exposure to harmful substances or situations to the lowest possible level that is practical and achievable. By keeping exposure low, the chances of adverse effects or harm can be minimized, promoting safety and well-being. Therefore, the correct answer is true.Rate this question:
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- 5.
Individual dose levels should remain?
- A.
At the max dose allowed
- B.
Below the maximum allowed
- C.
At 2000RAD's
Correct Answer
B. Below the maximum allowedExplanation
The correct answer is "below the maximum allowed." This means that the individual dose levels should be kept at a level that is lower than the maximum allowed dose. This is important to ensure the safety and well-being of individuals, as exceeding the maximum allowed dose could have harmful effects. By keeping the dose levels below the maximum allowed, the risk of adverse effects can be minimized.Rate this question:
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- 6.
Restricts the useful X-ray beam to part of body being imaged. sparing adjacent tissue from exposure
- A.
Filtration
- B.
Intensifying screen
- C.
Collimation
- D.
Protective apparel
- E.
Gonadal shielding
Correct Answer
C. CollimationExplanation
Collimation refers to the process of restricting the X-ray beam to a specific area of the body being imaged. This is achieved by using collimators, which are devices that shape and limit the size of the X-ray beam. By collimating the beam, adjacent tissues are spared from unnecessary exposure to radiation, resulting in a more focused and accurate image. This helps to minimize radiation dose to the patient and reduce the risk of potential harm to surrounding tissues.Rate this question:
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- 7.
Made of aluminum or copper and are inserted it to X-ray housing to absorb low energy X-rays before reaching the patient
- A.
Intensifying screen
- B.
Protective apparel
- C.
Filtration
- D.
Gonadal shielding
Correct Answer
C. FiltrationExplanation
Filtration is the correct answer because it involves the use of materials such as aluminum or copper to absorb low energy X-rays before they reach the patient. This process helps to remove unnecessary radiation and improve the quality of the X-ray image. Filtration is an important safety measure in radiology to reduce the patient's exposure to radiation and ensure accurate diagnostic results.Rate this question:
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- 8.
Lead impregnated material is used to fabricate this.This should be used with all patients of childbearing age when the gonads are in or near the xray beam
- A.
Filtration
- B.
Protective apparel
- C.
Intensifying screen
- D.
Gonadal shielding
- E.
Collimation
Correct Answer
D. Gonadal shieldingExplanation
Gonadal shielding is the correct answer because it is used to protect the reproductive organs (gonads) from radiation exposure during X-ray procedures. Lead impregnated material is used to fabricate the shielding, which helps to block the radiation and prevent potential harm to the patient's reproductive health. This precaution is particularly important for patients of childbearing age when the gonads are in or near the X-ray beam, as it reduces the risk of genetic damage and potential harm to future pregnancies.Rate this question:
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- 9.
Lead impregnated material is used to make apron and gloves worn by radiologists and technicians while performing radiographic procedures
- A.
Filtration
- B.
Protective apparel
- C.
Intensifying screen
- D.
Gonadal shielding
- E.
Collimation
Correct Answer
B. Protective apparelExplanation
Protective apparel is the correct answer because lead impregnated materials are used to make aprons and gloves worn by radiologists and technicians during radiographic procedures. These materials help to shield the wearer from the harmful effects of radiation exposure, providing a barrier between the individual and the radiation source. This protective apparel is essential in reducing the risk of radiation-related health issues for those working in the field of radiology.Rate this question:
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- 10.
Gonadal shielding must not interfere with the diagnostic value of the exam.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because gonadal shielding, which is used to protect the reproductive organs during medical imaging procedures, should not obstruct or hinder the clarity and accuracy of the diagnostic results. The purpose of shielding is to minimize radiation exposure to the gonads while still obtaining high-quality images for diagnosis. Therefore, it is important to ensure that the shielding does not interfere with the diagnostic value of the exam.Rate this question:
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- 11.
One of the cardinal principle of radiation protection states that the radionlogic technologist should minimize which of the following?
- A.
Distance
- B.
KVp
- C.
MAs
- D.
Time
- E.
Shielding
Correct Answer
D. TimeExplanation
The correct answer is Time. In radiation protection, minimizing the time of exposure to radiation is crucial to reduce the potential harm to the radionlogic technologist. The longer the exposure time, the higher the dose of radiation received. Therefore, it is important for the technologist to limit the time spent in close proximity to a radiation source to minimize the risk of radiation-related health issues.Rate this question:
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- 12.
Radiation dose-response relationship refers to:
- A.
Point where radiation make a connection between patient and the radiographer
- B.
Point of level where radiation exposure produces a response or reaction
- C.
Point where radiation make the part expose to glow
- D.
Point where radiation is very inoffensive to the patient
Correct Answer
B. Point of level where radiation exposure produces a response or reactionExplanation
The correct answer is "point of level where radiation exposure produces a response or reaction." The radiation dose-response relationship refers to the point at which the level of radiation exposure leads to a measurable response or reaction in the body. This relationship helps to understand the effects of radiation on the human body and determine safe levels of exposure.Rate this question:
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- 13.
The relationship between radiation and some biologic response is in:
- A.
Non Linear, non threshold relationship
- B.
Linear, threshold relationship
- C.
Linear, non threshold relationship
- D.
Non Linear, threshold relationship
Correct Answer
C. Linear, non threshold relationshipExplanation
In a linear, non threshold relationship, the biologic response to radiation is directly proportional to the dose of radiation received, meaning that as the dose increases, the response also increases. There is no threshold dose below which the response does not occur. This means that even very low doses of radiation can cause some level of biologic response.Rate this question:
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- 14.
TRUE OR FALSE: What it means the concept “linear, non threshold relationship” any amount of ionizing radiation no matter how small, may cause biologic effects(response)
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The concept of a "linear, non-threshold relationship" suggests that any amount of ionizing radiation, no matter how small, can potentially cause biological effects. This means that there is no threshold or safe level of exposure below which no harm will occur. Instead, the risk of harm increases linearly with the dose of radiation. Therefore, the statement "any amount of ionizing radiation no matter how small, may cause biologic effects" is true.Rate this question:
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- 15.
If we say that there is no amount of radiation exposure that is safe we are talking about
- A.
Linear, threshold relationship
- B.
Linear, non threshold relationship
- C.
Non Linear, non threshold relationship
- D.
Non Linear, threshold relationship
Correct Answer
B. Linear, non threshold relationshipExplanation
A linear, non-threshold relationship means that there is a direct correlation between the amount of radiation exposure and the risk of harm, even at very low levels of exposure. In other words, any amount of radiation exposure carries some level of risk, and there is no threshold below which it is considered safe. This is the opposite of a linear, threshold relationship, where there is a threshold below which no harm is expected. A non-linear, non-threshold relationship would imply that the relationship between radiation exposure and risk is not direct or predictable, while a non-linear, threshold relationship would suggest that there is a threshold below which no harm is expected, but above which the risk increases exponentially.Rate this question:
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- 16.
It is the unit of measurement that relates to the quantity of absorbed dose and is an important concept in radiation biology
- A.
Linear Energy Transfer (LET)
- B.
Relative Biological Effectiveness(RBE)
- C.
Absorbed Dose Equivalent (ADE)
- D.
Absolute Biological Effectiveness (ABE)
Correct Answer
A. Linear Energy Transfer (LET)Explanation
Linear Energy Transfer (LET) is the correct answer because it is the unit of measurement that relates to the quantity of absorbed dose and is an important concept in radiation biology. LET refers to the amount of energy transferred to the material as a charged particle passes through it, per unit length of the particle's track. It is a crucial parameter in understanding the biological effects of radiation, as higher LET radiation is more damaging to living tissue. Therefore, LET is an important concept in radiation biology and is directly related to the absorbed dose.Rate this question:
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- 17.
Is an indirect unit of measurement that relates to the quality of damage, and states that the Biological damage resulting from radiation interaction with tissues increases as radiation increases.
- A.
Linear Energy Transfer (LET)
- B.
Absolute Biological Effectiveness (ABE)
- C.
Absorbed Dose Equivalent (ADE)
- D.
Relative Biological Effectiveness(RBE)
Correct Answer
D. Relative Biological Effectiveness(RBE)Explanation
Relative Biological Effectiveness (RBE) is the correct answer because it is an indirect unit of measurement that relates to the quality of damage caused by radiation. It states that the biological damage resulting from radiation interaction with tissues increases as radiation increases. RBE is used to compare the effectiveness of different types of radiation in causing biological damage.Rate this question:
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- 18.
The point or level of radiation exposure(dose) at which a response or reaction first occurs.
- A.
Linear Energy Transfer (LET)
- B.
Relative Biological Effectiveness(RBE)
- C.
Dose-response Relationship
- D.
Absorbed Dose Equivalent (ADE)
- E.
Absolute Biological Effectiveness (ABE)
Correct Answer
C. Dose-response RelationshipExplanation
The dose-response relationship refers to the relationship between the level of radiation exposure (dose) and the biological response or reaction that occurs as a result. It describes how the magnitude of the response increases with increasing dose, and helps determine the threshold at which a response first occurs. This relationship is important in understanding the effects of radiation on living organisms and in setting radiation safety standards.Rate this question:
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- 19.
Method used to calculate the effective absorbed dos for all types of ionizing radiation is call
- A.
Relative Biological Effectiveness(RBE)
- B.
Linear Energy Transfer (LET)
- C.
Absorbed Dose Equivalent (ADE)
- D.
Absolute Biological Effectiveness (ABE)
- E.
Dose-response Relationship
Correct Answer
C. Absorbed Dose Equivalent (ADE)Explanation
The method used to calculate the effective absorbed dose for all types of ionizing radiation is called Absorbed Dose Equivalent (ADE). This method takes into account the different biological effects of different types of radiation and provides a standardized measure of the radiation dose that takes into consideration the relative biological effectiveness (RBE) of the radiation. The ADE is calculated by multiplying the absorbed dose by the radiation weighting factor (WR), which reflects the RBE of the radiation. The ADE is measured in sieverts (Sv) and is used to assess the potential health effects of radiation exposure.Rate this question:
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- 20.
The formula for Absorbed Dose-Equivalent:
- A.
AF x QD
- B.
AD x QF
- C.
AD/QF
- D.
AF/QF
Correct Answer
B. AD x QFExplanation
The correct answer is AD x QF. This formula calculates the absorbed dose-equivalent by multiplying the absorbed dose (AD) with the quality factor (QF). The absorbed dose represents the amount of energy deposited in a material by ionizing radiation, while the quality factor accounts for the different biological effects of different types of radiation. Multiplying these two factors gives the absorbed dose-equivalent, which is a measure of the potential biological harm caused by radiation exposure.Rate this question:
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- 21.
The ADE method of calculating considers the differences in radiation damage by using a modifying or
- A.
QF
- B.
AD
- C.
AF
- D.
MA
- E.
XT
Correct Answer
A. QFExplanation
The ADE method of calculating takes into account the differences in radiation damage by using a modifying factor. The modifying factor, denoted as QF, adjusts the dose received by different tissues or organs based on their relative sensitivity to radiation. This allows for a more accurate assessment of the overall radiation damage and helps in determining appropriate radiation therapy plans.Rate this question:
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- 22.
QF stands for:
- A.
Quantity Factor
- B.
Quality Factor
- C.
Quality Fusion
- D.
Quantity Fashion
Correct Answer
B. Quality FactorExplanation
The correct answer is "Quality Factor" because QF is commonly used as an abbreviation for Quality Factor in various fields, such as engineering, physics, and telecommunications. The Quality Factor represents the efficiency or effectiveness of a system or component, indicating its ability to perform its intended function without loss or degradation.Rate this question:
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- 23.
This factor is important as a measure biological damage an is used in calculation of the absorbed dose equivalent.
- A.
Quality Factor (QF)
- B.
Quantity Factor (QF)
- C.
Quality Fusion (QF)
- D.
Quantity Fashion (QF)
Correct Answer
A. Quality Factor (QF)Explanation
The quality factor (QF) is important as a measure of biological damage and is used in the calculation of the absorbed dose equivalent. It takes into account the different levels of harm caused by different types of radiation. By applying the quality factor, the absorbed dose can be adjusted to reflect the potential harm caused by the specific type of radiation, allowing for a more accurate assessment of the biological damage.Rate this question:
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- 24.
TRUE OR FALSE The term of LD 50/30 refers to the whole body dose of radiation that can be lethal to 50% of the exposed population within 30 days
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
LD 50/30 refers to the lethal dose of radiation that can cause mortality in 50% of the exposed population within a period of 30 days. This term is commonly used in radiation biology and toxicology to determine the potency of radiation and its effects on living organisms.Rate this question:
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- 25.
What it means that 50% of the exposed population will survive for 60 days due to medical intervention
- A.
LP 50/30
- B.
LG 50/20
- C.
LD 50/60
- D.
LH 30/30
Correct Answer
C. LD 50/60Explanation
The answer LD 50/60 indicates that 50% of the exposed population will survive for 60 days due to medical intervention. This means that out of the population that has been exposed to a certain condition or treatment, half of them will still be alive after 60 days. The LD value represents the "lethal dose" or the dose at which 50% of the population would die, and the 50/60 indicates the survival rate and duration.Rate this question:
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- 26.
Acute Radiation Syndrome include the following except
- A.
Gonadal dysfunction
- B.
Epilation (hair loss)
- C.
Depression of the white cells
- D.
Death
- E.
Cancer
Correct Answer
E. CancerExplanation
Acute Radiation Syndrome (ARS) is a condition caused by exposure to high levels of radiation over a short period of time. It typically affects the whole body and can result in various symptoms. The options provided are all potential effects of ARS, except for cancer. While radiation exposure can increase the risk of developing cancer in the long term, it is not considered a direct symptom of ARS. The other options, such as gonadal dysfunction, epilation, depression of white cells, and death, are all known manifestations of ARS.Rate this question:
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- 27.
Short term effects of radiation occur when
- A.
When patients receive greater amounts of radiation on a short period of time
- B.
When patients receive little amounts of radiation on a short period of time
- C.
When patients receive greater amounts of radiation on a long period of time
- D.
When patients receive constant amounts of radiation on a long period of time
- E.
When patients receive constant amounts of radiation on a short period of time
Correct Answer
A. When patients receive greater amounts of radiation on a short period of timeExplanation
Short term effects of radiation occur when patients receive greater amounts of radiation on a short period of time. This means that the effects are immediate and can be seen shortly after the exposure to high levels of radiation. These effects may include nausea, vomiting, hair loss, skin burns, and damage to the cells and tissues of the body. The intensity and severity of these short term effects depend on the dose of radiation received and the duration of exposure.Rate this question:
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- 28.
Long term effects of radiation occur when
- A.
When patients receive little amounts of radiation on a short period of time
- B.
When patients receive greater amounts of radiation on a short period of time
- C.
When patients receive greater amounts of radiation on a long period of time
- D.
When patients receive constant small amounts of radiation on a long period of time
- E.
When patients receive constant amounts of radiation on a short period of time
Correct Answer
D. When patients receive constant small amounts of radiation on a long period of timeExplanation
Constant small amounts of radiation over a long period of time can lead to long-term effects. This is because the cumulative effect of radiation exposure can gradually damage cells and tissues in the body, increasing the risk of developing radiation-related health issues such as cancer, genetic mutations, and organ damage. The body may have difficulty repairing the damage caused by constant exposure to radiation, leading to long-lasting health consequences.Rate this question:
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- 29.
Acute Radiation Syndrome (ARS) occurs when.
- A.
Humans receive large doses of ionization radiation to the entire body within a short time period
- B.
Humans receive small doses of ionization radiation to the entire body within a short time period
- C.
Humans receive large doses of ionization radiation in some body parts within a short time period
- D.
Humans receive large doses of ionization radiation to the entire body within a long time period
- E.
Humans receive small doses of ionization radiation to the entire body within a long time period
Correct Answer
A. Humans receive large doses of ionization radiation to the entire body within a short time periodExplanation
Acute Radiation Syndrome (ARS) occurs when humans receive large doses of ionization radiation to the entire body within a short time period. This explanation is supported by the fact that ARS is a condition caused by high levels of radiation exposure, specifically to the entire body. The term "acute" implies a sudden and severe onset, which aligns with the idea of a short time period. Additionally, the phrase "large doses" indicates that the radiation exposure is significant enough to cause this syndrome.Rate this question:
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- 30.
Late Somatic Effects appears when
- A.
After of period of months or years after the initial exposure at high doses
- B.
After a low doses but it repairs itself and the patient still receiving that radiation in short doses.
- C.
After a high doses but it repairs itself and the patient still receiving that radiation in short doses.
- D.
After a high doses and it does not repairs itself and the patient still receiving that radiation in short doses.
Correct Answer
C. After a high doses but it repairs itself and the patient still receiving that radiation in short doses.Explanation
Late somatic effects appear when a person is exposed to high doses of radiation, but the body is able to repair itself. However, the person continues to receive radiation in short doses. This can lead to long-term health effects that may manifest months or years after the initial exposure.Rate this question:
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- 31.
Is the most important late somatic effect and is difficult to verify statistically.
- A.
Carcinogenesis
- B.
Dementia
- C.
Alzheimer
- D.
Diarrhea
- E.
Loss of vision
- F.
Bleeding
Correct Answer
A. CarcinogenesisExplanation
Carcinogenesis is the process by which normal cells transform into cancer cells. It is considered the most important late somatic effect because it can lead to the development of various types of cancer. However, verifying the occurrence of carcinogenesis statistically can be challenging due to the complex nature of cancer development and the long time it takes for tumors to form.Rate this question:
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- 32.
It is an important to reduce the radiation to this gland because is very radio-sensitive and stores certain hormones that are very important for metabolism.
- A.
Liver
- B.
Pancreas
- C.
Thyroid
- D.
Pineal
- E.
Testes
- F.
Ovaries
Correct Answer
C. ThyroidExplanation
The thyroid gland is very radiosensitive and plays a crucial role in metabolism. It stores and produces hormones that regulate various bodily functions. Radiation exposure can disrupt the normal functioning of the thyroid gland and lead to hormonal imbalances. Therefore, it is important to reduce radiation to this gland to maintain its proper functioning and preserve overall metabolic health.Rate this question:
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- 33.
The Acute Radiation Syndrome presents the following major stages, except:
- A.
Prodromal stage
- B.
Early period
- C.
Latent period
- D.
Manifest illness
- E.
Recovery or death
Correct Answer
B. Early periodExplanation
The Acute Radiation Syndrome presents four major stages: prodromal stage, latent period, manifest illness, and recovery or death. The early period is not a recognized stage of the syndrome.Rate this question:
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- 34.
The ARS prodromal stage occurs when patient receive_____within hours after the whole body is exposed
- A.
0.5 Gy (50 rad)
- B.
1 Gy (100 rad)
- C.
1 to 10 Gy (100 rad to 1000 rad)
- D.
50 Gy or more(5000 rad or more)
Correct Answer
B. 1 Gy (100 rad)Explanation
In the prodromal stage of Acute Radiation Syndrome (ARS), patients typically experience symptoms within hours after being exposed to a high dose of radiation. The correct answer, 1 Gy (100 rad), falls within the range of doses that can cause symptoms to appear in this stage. This dose is significant enough to cause damage to the body's cells and initiate the onset of symptoms such as nausea, vomiting, and fatigue.Rate this question:
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- 35.
During the ARS manifest illness period symptoms the following systems are affected, except?
- A.
Osteomuscular
- B.
Hepatopoietic
- C.
Gastrointestinal
- D.
Cerebrovascular
Correct Answer
A. OsteomuscularExplanation
During the ARS (Acute Radiation Syndrome) manifest illness period, various systems in the body are affected due to radiation exposure. These include the hematopoietic system (which affects the production of blood cells), the gastrointestinal system (which affects the digestive tract), and the cerebrovascular system (which affects the blood vessels in the brain). However, the osteomuscular system (which includes the bones and muscles) is not typically affected during this period. Therefore, the correct answer is Osteomuscular.Rate this question:
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- 36.
There are three cardinal are cardinal principles of radiation protection: time,distance,and shielding (TDS) Related to the time reduction the responsibility of the radiographer is except?
- A.
Reduce the amount of time of exposition
- B.
Reduce the amount of time that the patient is exposed to radiation
- C.
Use fast exposure-time factor whenever possible
- D.
Use slow exposure-time factor whenever possible
Correct Answer
D. Use slow exposure-time factor whenever possibleExplanation
The correct answer is "Use slow exposure-time factor whenever possible." This is because the cardinal principle of time reduction in radiation protection emphasizes reducing the amount of time of exposure to radiation. Using a slow exposure-time factor would prolong the exposure time, which goes against the principle of minimizing the time of exposure. Therefore, the radiographer's responsibility is to use a fast exposure-time factor whenever possible, in order to reduce the amount of time the patient is exposed to radiation.Rate this question:
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- 37.
There are three cardinal are cardinal principles of radiation protection: time,distance,and shielding (TDS). If the patient is changed the double of the distance from its original to the source of radiation, how we compensate the intensity of the beam?
- A.
We increase the double of the mA in order to compensate the intensity
- B.
We increase kVp three times from its original
- C.
We increase the double of kVp from its original
- D.
We increase four times the amount of mAs from its original
Correct Answer
D. We increase four times the amount of mAs from its originalExplanation
When the distance from the source of radiation is doubled, the intensity of the beam decreases. To compensate for this decrease in intensity, we need to increase the amount of mAs (milliamperes per second) by four times from its original value. Increasing the mAs will result in a higher radiation output, which helps maintain the desired intensity of the beam even at a greater distance. Increasing the mA or kVp alone will not provide the necessary compensation for the change in distance.Rate this question:
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- 38.
There are three cardinal are cardinal principles of radiation protection: time,distance,and shielding (TDS) In shielding the degree to which the quantity and energy of the x-ray photon decreased depend upon several factors, except:
- A.
Original quantity and energy of the x-ray beam
- B.
The thickness of body part
- C.
Type of absorber material
- D.
Thickness of the absorber material
Correct Answer
B. The thickness of body partExplanation
The correct answer is the thickness of the body part. The degree to which the quantity and energy of the x-ray photon decreases depends on factors such as the original quantity and energy of the x-ray beam, the type of absorber material, and the thickness of the absorber material. However, the thickness of the body part itself does not affect the decrease in quantity and energy of the x-ray photon.Rate this question:
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- 39.
Three categories of radiation sources can be generated in the x-ray room, except:
- A.
Primary radiation
- B.
Bounce radiation
- C.
Scatter radiation
- D.
Leakage radiation
Correct Answer
B. Bounce radiationExplanation
The question is asking for the category of radiation sources that cannot be generated in the x-ray room. The three options provided are primary radiation, scatter radiation, and leakage radiation. Primary radiation refers to the direct beam of x-rays emitted from the x-ray tube. Scatter radiation is produced when primary radiation interacts with matter and changes direction. Leakage radiation is the small amount of radiation that escapes from the x-ray tube housing. Bounce radiation is not a recognized category of radiation in the x-ray room, making it the correct answer.Rate this question:
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- 40.
The sources of scatter and leakage radiation collectively are called primary radiation
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
There are called secondary radiationRate this question:
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- 41.
For equipment capable of operating up to 150 kVp, primary structural protective shielding should consist of ______inch lead and be has high as ____feet from the x-ray room floor.
- A.
1/5, 6
- B.
1/7, 7
- C.
1/10, 9
- D.
1/16. 7
- E.
1/12, 6
- F.
1/32, 7
Correct Answer
D. 1/16. 7Explanation
For equipment capable of operating up to 150 kVp, primary structural protective shielding should consist of 1/16 inch lead and be as high as 7 feet from the x-ray room floor.Rate this question:
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- 42.
For secondary structural protective shielding should consist of ______inch lead and be has high as,or extended to ____.
- A.
1/5, 6 inches high
- B.
1/7, 7 feet high
- C.
1/10, 9 meters high
- D.
1/32, extended to the ceiling
- E.
1/17, extended to the ceiling
Correct Answer
D. 1/32, extended to the ceilingExplanation
The correct answer is 1/32, extended to the ceiling. This means that the secondary structural protective shielding should consist of lead that is 1/32 inch thick and should extend all the way up to the ceiling. This ensures maximum protection from radiation.Rate this question:
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- 43.
Air measure of x-ray radiation is made by what units?
- A.
REM
- B.
RAD
- C.
Roentgen (R)
- D.
C/kg
- E.
Gray
- F.
Sievert (sv)
Correct Answer
C. Roentgen (R)Explanation
The correct answer is Roentgen (R). The Roentgen is the unit used to measure the amount of x-ray radiation in the air. It measures the ionization of air caused by x-rays or gamma rays. The other options listed, such as REM, RAD, C/kg, Gray, and sievert (sv), are also units used in radiation measurement, but they are not specifically used for measuring x-ray radiation in the air.Rate this question:
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- 44.
The radiation equivalent man is equal to? Correct answer required 3 choices.
- A.
REM
- B.
RAD
- C.
R
- D.
C/kg
- E.
Gray (Gy)
- F.
Sievert (sv)
- G.
Air radiation measure
- H.
Patient dose measure
- I.
X-ray tech dose
Correct Answer(s)
A. REM
F. Sievert (sv)
I. X-ray tech doseExplanation
The radiation equivalent man (REM) and sievert (sv) are both units used to measure the biological effects of radiation on humans. REM is the older unit, while sievert is the newer, internationally recognized unit. Both units take into account the type and energy of the radiation and the sensitivity of the tissue being irradiated. The x-ray tech dose refers to the dose of radiation received by an x-ray technician, which can be measured in REM or sievert. Therefore, REM, sievert (sv), and x-ray tech dose are all valid choices for the radiation equivalent man.Rate this question:
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- 45.
The radiation absorbed dose is equal to? Correct answer required 3 choices.
- A.
REM
- B.
RAD
- C.
R
- D.
C/kg
- E.
Gray (Gy)
- F.
Sievert (sv)
- G.
Air radiation measure
- H.
Patient dose measure
- I.
X-ray tech dose
Correct Answer(s)
B. RAD
E. Gray (Gy)
H. Patient dose measureExplanation
The radiation absorbed dose is a measure of the amount of radiation energy absorbed by a material or tissue. It is commonly expressed in units of RAD (radiation absorbed dose) or Gray (Gy). RAD is an older unit of measurement, while Gray is the SI unit. Patient dose measure refers to the amount of radiation absorbed by a patient during a medical procedure. Therefore, RAD, Gray (Gy), and Patient dose measure are all correct choices for the radiation absorbed dose.Rate this question:
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- 46.
The Coulomb per kilogram is equal to? Correct answer required 3 choices.
- A.
REM
- B.
RAD
- C.
Roentgen (R)
- D.
C/kg
- E.
Gray (Gy)
- F.
Sievert (sv)
- G.
Air radiation measure
- H.
Patient dose measure
- I.
X-ray tech dose
Correct Answer(s)
C. Roentgen (R)
D. C/kg
G. Air radiation measureExplanation
The Coulomb per kilogram (C/kg) is a unit used to measure the exposure of radiation in air. It quantifies the amount of ionization produced by X-rays or gamma rays in a specific volume of air. The Roentgen (R) is also a unit used to measure exposure to X-rays or gamma rays, specifically the amount of ionizing radiation required to produce one electrostatic unit of charge in one cubic centimeter of dry air at standard temperature and pressure. Therefore, both the Roentgen (R) and C/kg are units used to measure the same thing - the exposure to radiation in air. The term "Air radiation measure" is also used to describe this concept.Rate this question:
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- 47.
Intensifying screens reduce radiation exposure to patient by more than __%
- A.
60%
- B.
85%
- C.
95%
- D.
100%
Correct Answer
C. 95%Explanation
Intensifying screens are used in radiography to enhance the visibility of the image on the film or digital detector, thereby reducing the amount of radiation required to produce a diagnostic image. By intensifying the effect of the radiation, these screens can significantly decrease the exposure of the patient to radiation. The correct answer, 95%, indicates that intensifying screens can reduce radiation exposure by this percentage, making it a highly effective tool in minimizing the potential risks associated with excessive radiation exposure during medical imaging procedures.Rate this question:
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- 48.
What is sandwiched between intensifying screens in the xray cassette?
- A.
Film
- B.
Beam restrictor
- C.
Compressive material
- D.
Filter
Correct Answer
A. FilmExplanation
The correct answer is film. In an x-ray cassette, the film is sandwiched between intensifying screens. The purpose of the intensifying screens is to convert the x-ray photons into visible light, which then exposes the film. This helps to reduce the amount of radiation required to produce an image and improves the efficiency of the x-ray process. The film captures the image created by the intensified light and is later developed to produce the final x-ray image.Rate this question:
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- 49.
The intensifying screen acts as a/an ________ of the remnant radiation reaching the cassette.
- A.
Shield
- B.
Amplifier
- C.
Filter
- D.
Host
Correct Answer
B. AmplifierExplanation
The intensifying screen acts as an amplifier of the remnant radiation reaching the cassette. It enhances the intensity of the radiation, allowing for a clearer and more detailed image to be captured on the cassette.Rate this question:
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- 50.
Closest to xray film. 10-20 um thick.
- A.
Phosphor layer
- B.
Base
- C.
Protective layer
- D.
Reflexive layer
Correct Answer
C. Protective layerExplanation
The protective layer is the correct answer because it is the layer that is closest to the x-ray film and is typically around 10-20 um thick. The phosphor layer, base, and reflexive layer are not mentioned as being closest to the x-ray film in the given information.Rate this question:
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