welcome to another MedCram comm board

vitals question so this one’s a pretty simple one this is a dose response curve

for radiation and the question is is which of the following dose response

curves represents a linear threshold response to radiation so the key here is

the words linear threshold response and so what we’ve got here is we’ve got four

different choices a B C and D what we’re looking for is a threshold and a linear

response to that I think the first thing that we can eliminate here is curve D

which is this one right here because of the fact that it’s not linear so then

the next question becomes is it a B or C and again we’re looking for a linear

threshold response and so what we’re looking for is a dose above which a

certain threshold gives us a response and you can see here that with curve a

we already have a response even before we’ve been given a dose so that can’t be

the right answer with B as soon as we have the first photon of dose we start

to see a response so that would be like ionic radiation even to just one photon

okay that’s not the right answer if we look at C we can see that there is a

dose that occurs up to a certain threshold which is what we’re looking

for and then above that threshold we get a linear response to the dose thanks for

joining us you

thanks for the info

See Dr. Seheult solve 14 other exam questions free at: https://www.medcram.com/courses/medical-board-questions-explained-clearly

Incorrect answer. The answer is "b". Line is "C", but the answer here is "b". This is how people lose points, please pay attention.

No worries, and thank you for great videos

So statistically speaking, how much a risk of radiation induced cancer from a single CT scan?