Radiosensitivity - Samenvattingen, Aantekeningen en Examens

ARRT CT Registry Exam Practice Questions and 100% Correct Verified Answers| 2023/2024 Newly Updated During CT arthrography, iodinated contrast media is injected directly into the: Answer: Joint space QUESTION Which of the following is considered one of the iso-osmolar contrast media? Answer: Iodixanol QUESTION A common site for the IV administration of iodinated contrast media is the anterior recess of the elbow, otherwise known as the Answer: antecub...

LRA 215 Wk. 1 Ch 3: Quiz | Latest Update | 2024/2025 | Graded A+ Humans are most radiosensitive during _____. Fetal stages 3 multiple choice options Radiation induced genetic damage follows a ________ dose-response relationship. Linear - Nonthreshold 3 multiple choice options The (RBE) of diagnostic x-rays is equal to _____. 1 3 multiple choice options The (LET) of diagnostic x-rays is ____ keV/ym. 3.0 3 multiple choice options ________ is a measure of the rate that energy is...

What is used to account for the differences in tissue sensitivity to ionizing radiation when determining effective dose E Choose all that apply 1. Tissue weighting factors Wt 2. Radiation weighting factors Wr 3. Absorbed dose - ANS 1. Tissue weighting factors Wt Bushong 8th edition page 556 The _______ represents the relative tissue _______ of irradiated material examples muscle vs intestinal epithelium vs bone 1. Tissue weighting factors Wt/radiosensitivity 2. Radiatio...

RADIATION PROTECTION ARRT | STUDY GUIDE QUESTION BANK EXAM | QUESTIONS EXPERT VERIFIED WITH GUIDED BOOK RATIONALES | 100% VERIFIED | 2024 What is used to account for the differences in tissue sensitivity to ionizing radiation when determining effective dose E Choose all that apply 1. Tissue weighting factors Wt 2. Radiation weighting factors Wr 3. Absorbed dose - 1. Tissue weighting factors Wt Bushong 8th edition page 556 The _______ represents the r...

A. Lymphocytes Lymphocytes are white or colorless blood cells derived from lymphatic tissues. Because of their rapid cell division they are more susceptible to the affects of radiation.` correct answersWhich of the following types of blood cells is the most sensitive to radiation? A. Lymphocytes B. Granulocytes C. Thrombocytes D. Erythrocytes A. Radiosensitivity will increase Well oxygenated cells will be 2 to 3 times more radiosensitive. This is important in the radiation treatment of ...

Which cell types have the lowest radiosensitivity: nerve cells muscle cells spermatids lymphocytes - Answer nerve cells (except in fetal life, they are highly radiosensitive) Which cells are the most radiosensitive in the body - Answer lymphocytes Which interaction between x-ray photons and matter involves a high energy photon and the ejection of an outer shell electron? photoelectric effect coherent scatter Compton scatter pair produciton - Answer Compton scatter What is ...

RADT 1200 Final Exam Questions and Answers All Correct What is the end result of photointegration? - Answer-one nuclear fragment What is the law od Bergonie & Tribondeau? - Answer-states that cells are most radiosensitive when they are: Stem Young High metabolic activity High proliferation rate What are physical factors affecting radiosensitivity? - Answer-LET- Linear energy transfer RBE- Relative biologic effectiveness What is LET? - Answer-a measure of the rate at which ioniz...

Which position of the shoulder demonstrates the lesser tubercle in profile medially? - ANSWER- Internal rotation In which position of the shoulder is the greater tubercle seen superimposed on the humeral head? - ANSWER- Internal rotation Which carpals are best demonstrated by ulnar deviation/flexion? - ANSWER- Lateral carpals, scaphoid The long. flat structures that project posteromedially from the pedicles are the - - ANSWER- Laminae - ANSWER- Where do the electrons that travel across the ...

Which cell types have the lowest radiosensitivity: nerve cells muscle cells spermatids lymphocytes CORRECT ANSWER-nerve cells (except in fetal life, they are highly radiosensitive) Which cells are the most radiosensitive in the body CORRECT ANSWER-lymphocytes Which interaction between x-ray photons and matter involves a high energy photon and the ejection of an outer shell electron? photoelectric effect coherent scatter Compton scatter pair produciton CORRECT ANSWER-Compton scatter...

CT Registry Review Questions and Correct Answers Iothalamate meglumine - Correct Answer aka Conray; Ionic radiopaque contrast media (RCM) An average range for activated PTT - Correct Answer 25-35 seconds Which of the following is the correct angle of insertion for placing a butterfly needle into a vein for intravenous of a contrast agent - Correct Answer 15 degrees A total volume of 125mL of an iodinated contrast agent is administered intravenously via automatic injector in 50 seconds....