FREE AND STUDY GAMES ABOUT CHAPTER 4 QUIZ EXAM

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FREE AND STUDY GAMES ABOUT CHAPTER 4 QUIZ EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -25 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Radiation injuries that are not seen in the person irradiated but that occur in

future generations are termed:

Answer:

genetic effects

Question 2: Which traditional unit does not have an SI equivalent?

Answer:

The roentgen is a traditional unit that does not have a direct SI equivalent; it measures the exposure of x-rays or gamma rays in air.

Question 3: The latent period in radiation biology is the time

Answer:

exposure to x-radiation and clinical symptoms

Question 4: Which radiation unit is determined by the quality factor (QF)?

Answer:

rem (roentgen equivalent man)

Question 5: true or false? X-radiation is not harmful to living tissues.

Answer:

statement is incorrect

Question 6: Which is most susceptible to ionizing radiation?

Answer:

small lymphocyte (a type of white blood cell) are the most sensitive to ionizing radiation because they are rapidly dividing cells.

Question 7: What is the greatest contributor to artificial radiation exposure?

Answer:

medical radiation Question 8: What is the dose at which leukemia induction is most likely to occur?

Answer:

Leukemia induction is most likely to occur at higher radiation doses, typically around 5000 mrad (0.05 Gy).Question 9: The sensitivity of tissues to radiation is determined by:

Answer:

The sensitivity of tissues to radiation is influenced by mitotic activity (how frequently the cells divide), cell differentiation (how specialized the cells are), and cell metabolism (how active the cells are).

Question 10: Which conversion is correct?

Answer:

. 1 R = 2.58 × 10^-4 C/kg

Question 11: Which is used only for x-rays?

Answer:

The roentgen is specifically used to measure x-ray and gamma ray exposure in the air.Question 12: The traditional unit for measuring x-ray exposure in air is termed:

Answer:

The roentgen (R) is the traditional unit used to measure x-ray exposure in the air.

Question 13: A free radical:

Answer:

all of the above Question 14: The unit for measuring the absorption of x-rays is termed:

Answer:

The rad (radiation absorbed dose) measures the amount of radiation absorbed by tissue.

Question 15: Which statement is correct?

Answer:

. Long-term effects are seen with small amounts of radiation absorbed in a long period.Question 16: Indirect radiation injury occurs when:

Answer:

x-ray photons pass through the cell Question 17: An organ that, if damaged, diminishes the quality of an individual's life is termed:

Answer:

critical

Question 18: What is the approximate average dose of back-

ground radiation received by an individual in the United States?

Answer:

100 mrem/1.0 mSv Question 19: Direct radiation injury occurs when:

Answer:

. x-ray photons hit critical targets within a cell Question 20: The amount of radiation exposure an individual receives varies depending on:

Answer:

Radiation exposure can vary depending on the type of receptor used (e.g., film vs. digital), the collimation (which affects beam size), and the technique (e.g., exposure time, settings).

Question 21: Which relationship describes the response of tissues to radiation?

Answer:

linear, nonthreshold Question 22: A single intraoral image using a digital sensor results in an effective exposure

dose of:

Answer:

A single intraoral image using a digital sensor typically results in an effective dose of about 0.002 millisieverts (mSv).

Question 23: Which conversion is correct?

• R = 2.58 × 10^-4 C/kg
• Gy = 100 rad
• Sv = 100 rem
• rem = rad × QF

Answer:

all of them

Question 24: Which is considered radioresistant?

Answer:

mature bone cells

Question 25: Which factor(s) contributes to radiation injury?

Answer:

Total dose, dose rate, cell sensitivity, and age all contribute to the extent of radiation injury