jackie25 said:
Thanxs buddy,
Hi had some more questions plzzzzzzzz help me solving them
1] Relation between REM and millirem
2] Using "B" speed film exposure to patient at 3 feet is 1 roentgen. What would exposure be with "D" spped film at 6 feet
answer} 1/8 R
3]If intensity of a beam of radiation is 12 at a point 12 inches from the target , the intensity of beam at 24 inches is?
ans} 3
4] An exposure of 2 roentgens is recorded at 8 inches from target of Xray machine.In same machine beam, exposure at 4 inches would be?
ANS} 8R
5] Hey I also wanted to know , how much bone shuld be present for implant to be effective.
6} In asda they have shown a pano and there is unerupted premolar covered by bone and they ask how long will it take for the premolar to erupt?{ so how u calculate this depending on the thickness of the bone covering the unerupted premolar}
7] ALso plzz just wanted to be sure , on 1st day of CBT part 2 we will have how many questions and on 2nd day how many questions we will have?
Thanxs a lot .............
1)REM:
An acronym for Roentgen Equivalent Man. A unit which measures radiation in terms of the energy involved (the same as RAD), weighted by a factor related to the type of radiation. For the types of radiation used in radiologic procedures this factor is equal to one, so the REM is equivalent to the RAD.
REM =10 to the power of -6 milli REM.
2) they r related inversely and square times.
so E1/E2=d2/d1 whole square
1/E2= (6/3)(6/3)
E2=1/4 is the answer
I think the answer is wrong.....please if I am wrong correct me.
3) I1/I2=d2/d1 square times
(twelve)12/I2=(24/12)(24/12)
I2=3
4) same formula as answer 2 and u will get the correct answer 8R
5) I am not sure about the exact amount if someone know please let us know.
6) when u r given a pano u can see all the adjacent tooth position and guess the age of patient and cane expect how long will it take for the eruption.
If all r erupted and its impacted,I think u have to guess
Hey if anyone know any info about this please let us know
7)First day of exam 400 questions and 2nd day will be 100 questions.
Friends I too have a doubt....
In CPR,how many compressions do we actually have to do per minute???
Decks its 80 to 100 per minute and in asda papers its 60(one per second)per minute...
goodluck jakie.
