Early and late tissue effects due to excessive radiation exposure are best described as which type of effects?

Early and late tissue effects due to excessive radiation exposure are best described as which type of effects?

• A. Probabilistic
• B. Negative
• C. Deterministic
• D. Stochastic

Answer: (C)

Deterministic effects are those that occur only after a threshold dose and whose severity grows with the amount of radiation received. Early tissue effects from excessive exposure, such as skin erythema, epilation, or acute radiation symptoms, appear only when the dose passes a certain level and become more severe as the dose increases. Late effects like cataracts, fibrosis, or organ atrophy similarly show dose-dependent severity and have practical thresholds. In contrast, stochastic or probabilistic effects (like cancer or genetic changes) have no true threshold and concern the probability of occurrence rather than predictable severity with dose. Negative isn’t used in this context. So, early and late tissue effects from excessive exposure are best described as deterministic effects.

Deterministic effects are those that occur only after a threshold dose and whose severity grows with the amount of radiation received. Early tissue effects from excessive exposure, such as skin erythema, epilation, or acute radiation symptoms, appear only when the dose passes a certain level and become more severe as the dose increases. Late effects like cataracts, fibrosis, or organ atrophy similarly show dose-dependent severity and have practical thresholds. In contrast, stochastic or probabilistic effects (like cancer or genetic changes) have no true threshold and concern the probability of occurrence rather than predictable severity with dose. Negative isn’t used in this context. So, early and late tissue effects from excessive exposure are best described as deterministic effects.