Question 1: X-ray imaging is commonly used in medical settings for various purposes. Which of the following statements best describes the principle behind X-ray imaging?
X-rays produce sound waves that create images of internal structures.
X-rays use magnets to create images of bones and soft tissues.
X-rays use ionizing radiation to penetrate tissues and create images.
X-rays emit radio waves to visualize organs and blood vessels.
The Correct Answer is C
X-ray imaging uses ionizing radiation, which has high energy and can penetrate tissues. When X-rays pass through the body, they are absorbed differently by various tissues, creating an image that allows visualization of bones and soft tissues.
a. X-rays do not produce sound waves; they use ionizing radiation to create images, as mentioned in the correct explanation.
b. X-rays do not use magnets; magnetic resonance imaging (MRI) uses magnets to create images of bones and soft tissues.
d. X-rays do not emit radio waves; magnetic resonance imaging (MRI) and computed tomography (CT) use radio waves to visualize organs and blood vessels.
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Related Questions
Correct Answer is A
Explanation
Metal objects, including jewelry and accessories, can interfere with the X-ray image quality. Instructing the client to remove these items ensures accurate results.
b. "Consume a full meal before the procedure." This choice is incorrect because it is generally recommended to fast for a certain period before an X-ray, especially if contrast dye will be used. Eating a full meal could affect the accuracy of the images.
c. "Drink a large amount of water before the procedure." This choice is incorrect because drinking a large amount of water is not typically required for a standard X-ray procedure. However, specific instructions may be given if a contrast dye is used.
d. "Avoid taking any pain medications before the procedure." This choice is incorrect because taking pain medications is not typically contraindicated before an X-ray. Pain medications may be taken as needed and should not significantly affect the procedure.
Correct Answer is D
Explanation
When performing X-ray imaging on pediatric patients, it is crucial to use pediatric-sized lead aprons or shields to protect sensitive tissues and organs from unnecessary radiation exposure.
a. Using lead aprons only for the healthcare providers is not sufficient to protect pediatric patients from radiation exposure. Both the patient and the healthcare providers should wear appropriate protective equipment.
b. Adjusting the X-ray machine to deliver higher radiation doses is not safe for pediatric patients. The radiation dose should be minimized while maintaining image quality.
c. Reducing the use of immobilization techniques can result in suboptimal image quality due to motion artifacts. Proper immobilization techniques should be used to ensure clear images.
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