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Post by southpaw on Sept 23, 2015 10:18:13 GMT -5
Hey guys, I have done 3 studies and my QT interval number ranged from 438 to 449 but recently it has spiked up to the 470's and 480's. I am not sure what has caused this to happen but I am thinking it is dietary. What changes can I make to lower the number. Does magnesium have an impact on ECG the way it does on blood pressure? Any info and help would be much appreciated!
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Post by southpaw on Sept 23, 2015 11:46:38 GMT -5
Because the people on this forum have specific experience with screening for clinical trials and have encountered many of the same issues and some have been able to rectify these issues through certain means.
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Post by southpaw on Sept 23, 2015 18:48:01 GMT -5
Thanks! I wish someone had the answer lol.
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Post by vark on Sept 24, 2015 7:35:29 GMT -5
I've wondered this for years and not gotten a good answer. I would say that a good night's sleep the night before doesn't hurt. I sometimes splurge on a cheap hotel room instead of showing up for the screening after driving all night. It used to be that anything under 450 was ok, but then the fda tightened up and sometimes they want 430 and under, and half the time I miss that target.
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Post by southpaw on Sept 26, 2015 9:48:49 GMT -5
I've wondered this for years and not gotten a good answer. I would say that a good night's sleep the night before doesn't hurt. I sometimes splurge on a cheap hotel room instead of showing up for the screening after driving all night. It used to be that anything under 450 was ok, but then the fda tightened up and sometimes they want 430 and under, and half the time I miss that target. Thanks man. A good night's sleep is definitely good advice. From my research since I posted this, an increase in potassium appears to be directly related to lowering that number because potassium helps improve the electrical mechanism of the heart. I didn't know if anyone else had this issue and did soing to resolve it. I am in the process of eating foods high in potassium and modifying my diet in general.
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Post by Venepuncture on Feb 5, 2017 12:50:36 GMT -5
Melatonin is a great natural sleep supplement, but I am not sure if it is detectable in screening tests. Anyone know?
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Post by respect on Feb 6, 2017 21:26:37 GMT -5
Melatonin is a great natural sleep supplement, but I am not sure if it is detectable in screening tests. Anyone know? The body makes melatonin. The only way it would be a problem is if they were testing for this hormone and supplementing caused it to be out of range!
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Post by respect on Feb 6, 2017 21:31:48 GMT -5
Hey guys, I have done 3 studies and my QT interval number ranged from 438 to 449 but recently it has spiked up to the 470's and 480's. I am not sure what has caused this to happen but I am thinking it is dietary. What changes can I make to lower the number. Does magnesium have an impact on ECG the way it does on blood pressure? Any info and help would be much appreciated! Athletes have tighter qtcf ranges. It's a sign of cardio conditioning. The less time you lay around in studies and more time you spend on the beach the better your heart function. Over hydration can also cause electrolytes imbalance which affects the heart.
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Post by puntkicker on Feb 14, 2017 22:29:22 GMT -5
Melatonin is a great natural sleep supplement, but I am not sure if it is detectable in screening tests. Anyone know? It doesnt seem to work well for me, but it is one thing I like to have with me when traveling to screen, as sometimes falling asleep under those circumstances isnt the easiest for me. As you note, I wouldnt see there being much likelihood of it being detectable. I'd actually be interested if anyone has ever been banned for any sort of vitamin of supplement, and wouldnt mind sharing about it? Thanks
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