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19-08-2014 17:33 #91
20-08-2014 12:44 #92
Akakura: How are you doing Luv?? Was your scan scheduled for today??
20-08-2014 14:50 #93Senior Member
- Join Date
- Feb 2009
20-08-2014 15:26 #94
Ok I'll work it out gimme a minute.
20-08-2014 15:30 #95
Ok it's 99.2% out or more but the 500 Ovidrel is equivalent to 13400 of HCG level so worst case scenario you still have 100 of HCG left in your system and anything above 20-25 will trigger a positive. It could be much lower than that but don't rule out the possibility of a false positive.
20-08-2014 15:42 #96
*disclaimer I am neither a doctor nor a mathematician - these are calculations I worked out based on things I read on the inter webs...
20-08-2014 15:48 #97
20-08-2014 17:18 #98Senior Member
- Join Date
- Feb 2009
20-08-2014 20:40 #99
Well my working out is based on the information for practitioners leaflet I found somewhere on the Ovidrel website. It said that usually Ovidrel leaves the body at a rate of halving every 29hours plus or minus 6 hours. So I do all my calculations based on 35hrs although actually it could be much quicker.
It goes like this:
If you last injected Ovidrel ten days ago then that's 10x24hrs = 240hrs.
240/35 (slowest possibly elimination rate) = 6.8 lots of halving,
Here's the halving chart remember each lot is 29-35 hours - it's not days:
1 50% out
2 75% out (25% less)
3 87.5% out (12.5% less)
4 93.75 out (6.25% less)
5 96.875% out (3.125%)
6 98.4375% out (1.5625% less)
7 99.21875% out (.78125% less)
8 99.609375% out (.390624% less)
I also read online that 250 Ovidrel has the same *effect* as 6700 HCG (some website say slightly less than this so better to be cautious).
Sooooo..... You work out how many days since injecting, times that by 24hrs, divide by 35 (or 29 to work out the average) then look at that list. Once you get to 8 lots of elimination, you're getting pretty close - because there's only 0.39% of the HCG left.
If your dose was 250 Ovidrel (aka 6700) then you simply calculate 0.39% of 6700 which is 26 - and that's only barely enough to trigger a positive on a POAS so by then you are starting to see real positives.
20-08-2014 20:43 #100
Therefore, @littlekiwi injected 500ovidrel equivalent to 13,400 HCG on 9/8 which was 11 days ago.
11 days x 24hrs = 264 hrs.
Divided by the average of 29hrs and you get a bit over 9 times that her dose has halved and only 0.195312% of it is still in her system. 0.195312% of 13,400 is 26 which as above is only barely going to trigger a First Response Early Result, so a decent line at this point really will be a line).
I.e. The HCG is pretty much gone from her system, assuming she has an average elimination rate.
So she can POAS anytime she likes
But being cautious she might wait another day.
Last edited by ScubaGal; 20-08-2014 at 20:48.
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