Negative sweat test results

Eden

New member
My DS's sweat test results were given to me by his GI specialist the same day he had the test done. One arm was inconclusive because they couldn't get enough sweat and the other arm was a 10. Super low. When the lady doing the test took off the little disk thingy, she said "I think we've got enough sweat." She is apparently the lady that they have do all of the tests because they had to call her in from another department at the hospital (UVA and they do have a CF clinic). Hopefully it is accurate and we can move on to diagnose and treat whatever is going on with him. I'm going to have to start looking into other possibilities. He has an appointment with a pulmonologist on Sept. 10th so hopefully we can get down to the root of his persistant cough, which seems to be getting worse.

A couple of things I find funny 1) he sweats all the time (while playing, from just a little bit of sun, while sleeping) so why didn't he sweat very much with the sweat test? 2) Since a few days after his colonoscopy, his stomach and stools have been better. I'm thinking maybe the prep (miralax and liquid diet for two days) helped for some strange reason. He's never gone this long without having horrible loose bm's (2 weeks!), although he still complains of tummy aches, no clue. 3) He lost weight since his appt. 2 months ago, not much, about a half a pound. The GI doc says he wants to take a "wait and see" approach and when he gave me the sweat test reults he just said they were negative. I asked for the number and he told me 10. He never mentioned that the other arm was inconclusive, I found that out by having the results emailed to me. I could tell I wasn't going to get anywhere with him so I figured I'd talk more with the pulmo on the 10th.

I just keep questioning myself, I feel like there is definately something going on with DS, but then I'll doubt myself and think it's just allergies and his asthma and he has a sensitive stomach so therefore he doesn't eat as much as he should and that's why he's not gaining weight. I'm starting to think that it's probably not CF considering the negative sweat test. Also, when he had his hernia/hydrocele surgery the doctor never mentioned the absence of the vas deferrens. Maybe I'm just overreacting. I wish you all the best and thanks for all your support. I'll let you know what happens at the pulmo.
 

Eden

New member
My DS's sweat test results were given to me by his GI specialist the same day he had the test done. One arm was inconclusive because they couldn't get enough sweat and the other arm was a 10. Super low. When the lady doing the test took off the little disk thingy, she said "I think we've got enough sweat." She is apparently the lady that they have do all of the tests because they had to call her in from another department at the hospital (UVA and they do have a CF clinic). Hopefully it is accurate and we can move on to diagnose and treat whatever is going on with him. I'm going to have to start looking into other possibilities. He has an appointment with a pulmonologist on Sept. 10th so hopefully we can get down to the root of his persistant cough, which seems to be getting worse.

A couple of things I find funny 1) he sweats all the time (while playing, from just a little bit of sun, while sleeping) so why didn't he sweat very much with the sweat test? 2) Since a few days after his colonoscopy, his stomach and stools have been better. I'm thinking maybe the prep (miralax and liquid diet for two days) helped for some strange reason. He's never gone this long without having horrible loose bm's (2 weeks!), although he still complains of tummy aches, no clue. 3) He lost weight since his appt. 2 months ago, not much, about a half a pound. The GI doc says he wants to take a "wait and see" approach and when he gave me the sweat test reults he just said they were negative. I asked for the number and he told me 10. He never mentioned that the other arm was inconclusive, I found that out by having the results emailed to me. I could tell I wasn't going to get anywhere with him so I figured I'd talk more with the pulmo on the 10th.

I just keep questioning myself, I feel like there is definately something going on with DS, but then I'll doubt myself and think it's just allergies and his asthma and he has a sensitive stomach so therefore he doesn't eat as much as he should and that's why he's not gaining weight. I'm starting to think that it's probably not CF considering the negative sweat test. Also, when he had his hernia/hydrocele surgery the doctor never mentioned the absence of the vas deferrens. Maybe I'm just overreacting. I wish you all the best and thanks for all your support. I'll let you know what happens at the pulmo.
 

Eden

New member
My DS's sweat test results were given to me by his GI specialist the same day he had the test done. One arm was inconclusive because they couldn't get enough sweat and the other arm was a 10. Super low. When the lady doing the test took off the little disk thingy, she said "I think we've got enough sweat." She is apparently the lady that they have do all of the tests because they had to call her in from another department at the hospital (UVA and they do have a CF clinic). Hopefully it is accurate and we can move on to diagnose and treat whatever is going on with him. I'm going to have to start looking into other possibilities. He has an appointment with a pulmonologist on Sept. 10th so hopefully we can get down to the root of his persistant cough, which seems to be getting worse.
<br />
<br />A couple of things I find funny 1) he sweats all the time (while playing, from just a little bit of sun, while sleeping) so why didn't he sweat very much with the sweat test? 2) Since a few days after his colonoscopy, his stomach and stools have been better. I'm thinking maybe the prep (miralax and liquid diet for two days) helped for some strange reason. He's never gone this long without having horrible loose bm's (2 weeks!), although he still complains of tummy aches, no clue. 3) He lost weight since his appt. 2 months ago, not much, about a half a pound. The GI doc says he wants to take a "wait and see" approach and when he gave me the sweat test reults he just said they were negative. I asked for the number and he told me 10. He never mentioned that the other arm was inconclusive, I found that out by having the results emailed to me. I could tell I wasn't going to get anywhere with him so I figured I'd talk more with the pulmo on the 10th.
<br />
<br />I just keep questioning myself, I feel like there is definately something going on with DS, but then I'll doubt myself and think it's just allergies and his asthma and he has a sensitive stomach so therefore he doesn't eat as much as he should and that's why he's not gaining weight. I'm starting to think that it's probably not CF considering the negative sweat test. Also, when he had his hernia/hydrocele surgery the doctor never mentioned the absence of the vas deferrens. Maybe I'm just overreacting. I wish you all the best and thanks for all your support. I'll let you know what happens at the pulmo.
 

jpetersen

New member
a) do a full-panel genetic blood test
b) run him around like a wild animal outside before another sweat test

Since sweat tests aren't 100% correct either way, might as well get the genetic test.
 

jpetersen

New member
a) do a full-panel genetic blood test
b) run him around like a wild animal outside before another sweat test

Since sweat tests aren't 100% correct either way, might as well get the genetic test.
 

jpetersen

New member
a) do a full-panel genetic blood test
<br />b) run him around like a wild animal outside before another sweat test
<br />
<br />Since sweat tests aren't 100% correct either way, might as well get the genetic test.
 

hmw

New member
I am not 100% sure by how you worded it, but did you mean that your son has no vas deferens and you found out just by looking at medical paperwork, etc rather than by being told? That plus ANY pulmonary symptoms, regardless of sweat test scores, merits a comprehensive genetic test. Absence of vas deferens is rare enough to want to know why, esp since this is the case with the vast majority of men w/CF (over 95% I believe.)

Be sure you get the Ambry test (CF Amplified.) It's the most comprehensive genetic test available and will catch mutations none of the other genetic sequencing tests out there will. This is an important thing to do before discarding CF as a possibility.

eta> and yes, run him around before/during another sweat test. It's possible there may have been barely enough sweat for the other arm either.
 

hmw

New member
I am not 100% sure by how you worded it, but did you mean that your son has no vas deferens and you found out just by looking at medical paperwork, etc rather than by being told? That plus ANY pulmonary symptoms, regardless of sweat test scores, merits a comprehensive genetic test. Absence of vas deferens is rare enough to want to know why, esp since this is the case with the vast majority of men w/CF (over 95% I believe.)

Be sure you get the Ambry test (CF Amplified.) It's the most comprehensive genetic test available and will catch mutations none of the other genetic sequencing tests out there will. This is an important thing to do before discarding CF as a possibility.

eta> and yes, run him around before/during another sweat test. It's possible there may have been barely enough sweat for the other arm either.
 

hmw

New member
I am not 100% sure by how you worded it, but did you mean that your son has no vas deferens and you found out just by looking at medical paperwork, etc rather than by being told? That plus ANY pulmonary symptoms, regardless of sweat test scores, merits a comprehensive genetic test. Absence of vas deferens is rare enough to want to know why, esp since this is the case with the vast majority of men w/CF (over 95% I believe.)
<br />
<br />Be sure you get the Ambry test (CF Amplified.) It's the most comprehensive genetic test available and will catch mutations none of the other genetic sequencing tests out there will. This is an important thing to do before discarding CF as a possibility.
<br />
<br />eta> and yes, run him around before/during another sweat test. It's possible there may have been barely enough sweat for the other arm either.
 

JennifersHope

New member
I am sorry to say but no vasdeferens, persistant cough and failure to gain weight most likely do equal CF.... Not 100 percent but very likely..

You must get genetic testing done, don't wait....Insist on it
 

JennifersHope

New member
I am sorry to say but no vasdeferens, persistant cough and failure to gain weight most likely do equal CF.... Not 100 percent but very likely..

You must get genetic testing done, don't wait....Insist on it
 

JennifersHope

New member
I am sorry to say but no vasdeferens, persistant cough and failure to gain weight most likely do equal CF.... Not 100 percent but very likely..
<br />
<br />You must get genetic testing done, don't wait....Insist on it
 

Eden

New member
Thanks everyone. I think I miss worded the vas deferens part, sorry. I was trying to say that my son had a hernia/hydrocele surgery at about 1 1/2 yo and a hernia repair surgery again at about 3 yo. The doctor never told me if the vas deferens were absent, so as far as I know they are present. I was thinking it probably isn't cf because isn't that something the doctor would have noticed during hernia surgery?
His pulmo visit has been rescheduled for tomorrow, phew! His cough is now out of control, horrible stuffy nose which then leads to a bloody nose and therefore coughing up blood. He has pink eye in both eyes which I'm treating with antibiotic eye drops. I rescheduled the pulmo appt. because I didn't want to go to his ped and have her put him on oral antibiotics that would temporarily stop the cough just in time for the pulmo visit. I don't know if that is the right thing to do, but I want the pulmo to see what his normal cough turns into every other month. I was lucky they had a cancellation for tomorrow morning.
 

Eden

New member
Thanks everyone. I think I miss worded the vas deferens part, sorry. I was trying to say that my son had a hernia/hydrocele surgery at about 1 1/2 yo and a hernia repair surgery again at about 3 yo. The doctor never told me if the vas deferens were absent, so as far as I know they are present. I was thinking it probably isn't cf because isn't that something the doctor would have noticed during hernia surgery?
His pulmo visit has been rescheduled for tomorrow, phew! His cough is now out of control, horrible stuffy nose which then leads to a bloody nose and therefore coughing up blood. He has pink eye in both eyes which I'm treating with antibiotic eye drops. I rescheduled the pulmo appt. because I didn't want to go to his ped and have her put him on oral antibiotics that would temporarily stop the cough just in time for the pulmo visit. I don't know if that is the right thing to do, but I want the pulmo to see what his normal cough turns into every other month. I was lucky they had a cancellation for tomorrow morning.
 

Eden

New member
Thanks everyone. I think I miss worded the vas deferens part, sorry. I was trying to say that my son had a hernia/hydrocele surgery at about 1 1/2 yo and a hernia repair surgery again at about 3 yo. The doctor never told me if the vas deferens were absent, so as far as I know they are present. I was thinking it probably isn't cf because isn't that something the doctor would have noticed during hernia surgery?
<br />His pulmo visit has been rescheduled for tomorrow, phew! His cough is now out of control, horrible stuffy nose which then leads to a bloody nose and therefore coughing up blood. He has pink eye in both eyes which I'm treating with antibiotic eye drops. I rescheduled the pulmo appt. because I didn't want to go to his ped and have her put him on oral antibiotics that would temporarily stop the cough just in time for the pulmo visit. I don't know if that is the right thing to do, but I want the pulmo to see what his normal cough turns into every other month. I was lucky they had a cancellation for tomorrow morning.
<br />
 
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