Rad Bio Part 2 (SLewis)

Which of the following cell types are likely to express radiation injury after a D0 dose of radiation is received?

When oxygen is present, the cell is:

The TD 5/5 indicates the dose required to cause a 5% chance of injury to people irradiated within __ following exposure:

What organ has a TD 5/5 of 23 Gy?

At what dose (Gy) are cataracts initially observed?

Epilation may initially be observed in patients at an approximate dose of:

Which of the following is a more accurate representation of cell radiosensitivity?

What is the name of the largest saliva gland?

The TD 5/5 for the whole brain using standard fractionation is approximately:

When ionizing radiation interacts with a key molecule, the sensitive area is termed target. Name this theory:

When ionization events occur in the target it is termed:

The onset of dose for wet desquamation during standard fractionation is ___ Gy:

What are the 4 major classes of organic compounds?

Without medical intervention, a person exposed to a single whole body dose of _____ may die within 10 days.

The TD 5/5 for the ovary is ____________ than the TD 5/5 for the lung.

Which of the following would be a stochastic or late radiation response?

Irradiation of the salivary glands may lead to permanent xerostomia above doses of

If 1/3 of the esophagus receives a dose of 6500 cGy, what would most likely be the effect?

What type of cell fate is traced by chromosome damage?

What does the term interphase death mean?

Reddening of the skin is:

What is the TD 5/5 for stomach?

If a cell is hypoxic it is:

Which of the following is a characteristic of a heavy charged particle?

In RNA, what nitrogenous base replaces Thymine?

Which acute radiation syndrome would occur after a radiation dose of 1,000 cGy to the entire body?

The loss of hair is:

At doses above _____ Gy, you may see latent stricture in the espohagus during standard fractionation.

What is the TD 5/5 for the bladder in Gy?

Which of the following terms is used to describe radiation damage to a cell that is not sufficient to kill the cell?

Which phase of the cell cycle occurs between the two gap phases, G1 and G2?

The TD 5/5 for the colon is ________ than the TD 50/5 of the colon.

What is the typical oxygen enhancement ratio (OER) value for sparsely ionizing radiation?

Which of the following is an effect of radiation on DNA?

If the same cell type replaces cells within this organ, what has occurred?

Dry mouth is:

Tolerance dose to 3/3 of the kidney according to Emami et al?

Which of the 4 Rs of biologic effectiveness is least desirable for malignant cells?

The TD 5/5 is ______________ for immature bone than for mature bone.

Protracted or fractionated doses are better tolerated by tissue than single doses because:

What type of radiation consists of photons that were naturally produced from the nucleus?

At 20 Gy, what may initially be observed in patients receiving radiation under standard fractionation scheme?

After a dose of 300 cGY to the tetes, sterility is most likely

A well-differentiated cell is:

What is the most potent radiosensitizer?

At what dose would we expect reddening of the skin?

Which of the following is not a nitrogenous base found in DNA?

A fistula is likely at what dose to the colon?

If a different type of cell type replaces cells within this organ, what has occurred?

As LET __________, Dq on the cell survival curve becomes ___________:

What is the most abundant molecule in the body?

Permanent sterility occurs at ____ cGy:

The four Rs of radiation biology are:

Which somatic effect does NOT have a threshold?

Protracted or fractionated doses are better tolerated by tissue than single doses because:

The TD 5/5 is ______________ for bone marrow irradiated in a single dose than a fractionated dose.

What cell structure is known as the “Power Plant” and is responsible for energy production?

As LET __________, Dq on the cell survival curve becomes ___________:

Normal tissue healing following radiation occurs by:

What percentage of radiation induce damage occurs as a result of indirect ionization?

Which term describes certain chemicals or drugs that enhance the response of cells to radiation?

Conventional fractionation was based on the experiments performed to:

What is the threshold dose to the lens needed to cause blindness?

When does permanent epilation occur?

Exceeding the TD 5/5 for the spinal cord may lead to:

Erythematous skin reactions during fractionated radiation therapy are seen as a result of:

The most radiation-sensitive target molecule.

On a cell survival curve, if the Do measures small, it will:

Which somatic effect depends on the severity of the radiation dose?

If a cell is aerobic it is: