Which medical imaging modality exposes the patient to some of the highest radiation dosages in diagnostic radiology?
Show answer Hide answer
Answer: A. CT-Scan
Explanation
A computed tomography scan exposes patients to higher radiation dosages than standard diagnostic X ray imaging. This medical imaging modality combines multiple X ray measurements taken from various angles around the body. The resulting computer processed cross sectional images require significantly greater radiation exposure levels. Diagnostic radiology uses various forms of ionizing and nonionizing radiation to visualize internal body structures. Radiation dosage from medical scans is measured in units such as millisieverts to quantify patient exposure. Radiologists carefully weigh the clinical diagnostic benefits against potential radiation risks for every patient.
CT scans are invaluable medical tools for quickly diagnosing internal injuries strokes and complex tumors. Healthcare providers use low dose scanning protocols whenever possible to minimize patient radiation exposure risks. Alternative imaging methods like ultrasound and MRI do not use ionizing radiation and avoid these exposure concerns. Ultrasound imaging uses high frequency sound waves and does not expose patients to any ionizing radiation. MRI machines utilize powerful magnetic fields and radio frequency pulses rather than X ray radiation. Standard X ray procedures use much lower radiation doses than comprehensive multi slice computed tomography scans.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Which chemical element holds the position of second highest percentage by mass within the human body?
Show answer Hide answer
Answer: D. Carbon 18%
Carbon accounts for approximately eighteen percent of the total mass within the human body. Organic molecules built on carbon backbones form the structural foundation of all biological tissues. This high percentage makes...
Q2. Which cardiac chamber is responsible for pumping fully oxygenated blood into the aorta for systemic distribution:
Show answer Hide answer
Answer: D. Left Ventricle
The left ventricle features thick muscular walls designed to generate the high pressure required for systemic circulation. It receives oxygen-rich blood from the left atrium through the bicuspid valve before forceful con...
Q3. Which canine breed is famous for having a distinctive black-colored tongue?
Show answer Hide answer
Answer: A. Chow Chow
Chow Chow dogs are internationally famous for possessing a rare and distinctive blue-black pigmented tongue. Genetics determine this unusual dark coloration, which appears shortly after puppies are born. Breed standards...
Q4. Which element is commonly utilized as a neutron moderator inside nuclear reactors?
Show answer Hide answer
Answer: D. Heavy water
Heavy water contains deuterium atoms that slow down fast neutrons effectively inside nuclear reactors. This moderation process increases the probability of sustaining controlled nuclear fission chain reactions. Deuterium...
Q5. Which chemical element ranks third in percentage composition by mass in the human body?
Show answer Hide answer
Answer: C. Hydrogen 10%
Hydrogen accounts for approximately ten percent of the total mass composition of a standard human body. It is present in immense quantities because water molecules and organic macromolecules are rich in hydrogen atoms. O...
Q6. Which of the listed options functions as an electrical insulator rather than a conductor?
Show answer Hide answer
Answer: D. All are conductors
Graphite, aluminum, and gold are all electrical conductors, so none of the listed options function as an insulator.