Unit 1 (History, Atoms, and PrineFactors) Factors Prime
Studied by 0 people
View linked note
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/31
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
32 Terms
Q: What was Wilhelm Conrad Roentgen studying when he accidentally discovered x-rays?
A: Cathode rays
Q: What body part did Wilhelm Conrad Roentgen x-ray on his wife?
A: Hand
Q: What year were x-rays discovered by Wilhelm Roentgen?
A: 1895
Q: Who invented the fluoroscope?
A: Thomas Edison
Q: Which of the following is NOT located in the nucleus of an atom?
A: Electrons
Q: What is the smallest unit of an element?
A: Atom
Q: The acquisition or loss of an electron by an atom is called what?
A: Ionization
Q: Electrons give what type of charge?
A: Negative
Q: Which statement about electrons is true?
A: They orbit the nucleus
Q: What is made up of protons and neutrons?
A: Nucleus
Q: Do electrons have a large amount of mass or weight?
A: False
Q: Electrons have what type of charge?
A: Negative charge
Q: Protons have what type of charge?
A: Positive charge
Q: All of the following are elements commonly used in radiography EXCEPT which one?
A: Mercury
Q: What does PACS stand for?
A: Picture archiving and communication system
Q: True or False: ALARA (as low as reasonably achievable) is used in radiography to help keep patients and healthcare workers safe.
A: True
Q: Which exposure factor determines the total quantity of x-rays produced during an exposure?
A: mAs
Q: The effect of mA on receptor exposure is:
A: Directly proportional
Q: Which factor controls the quality (penetrating ability) of the x-ray beam?
A: kVp
Q: Which prime factor controls the number (quantity) of photons reaching the image receptor?
A: mAs
Q: Calculate the mAs: 600 ext{ mA} at 0.02 ext{ sec}
A: 12 ext{ mAs}
Q: Calculate the mAs: 500 ext{ mA} at 0.4 ext{ sec}
A: 200 ext{ mAs}
Q: If the mA is 200 and the time is 0.15 ext{ sec}, what is the mAs?
A: 30 ext{ mAs}
Q: Calculate the mAs: 300 ext{ mA} at 0.05 ext{ sec}
A: 15 ext{ mAs}
Q: Calculate the mAs: 300 ext{ mA} at \frac{1}{3} ext{ sec}
A: 100 ext{ mAs}
Q: 200 ext{ mA} at what time equals 5 ext{ mAs}?
A: 0.025 ext{ sec}
Q: Calculate the mA: ____ mA at 0.05 ext{ sec} = 20 ext{ mAs}
A: 400 ext{ mA}
Q: Calculate the mAs: 400 ext{ mA} at 0.02 ext{ sec}
A: 8 ext{ mAs}
Q: Calculate the mAs: 400 ext{ mA} at 0.025 ext{ sec}
A: 10 ext{ mAs}
Q: Which of the following describes electrons?
A: They orbit the nucleus
Q: Which exposure factor determines image quantity?
A: mAs
Q: Which of the following is true regarding electrons?
A: Electrons orbit the nucleus