Re: Nasal Potential Difference

[Guest guest]

What does the Nasal Potential Differene test involve, and at what age can it

be performed. My daughter is still suspected but unconfirmed of having CF

after 2 negative sweat tests and an inconclusive DNA test. She has a history

of unusual chest problems that are usually associted with CF. She is nearly

8 years old.

Re: Question about PICC lines and bronchospcopies

>

>> My next question, is it uncommon to have CF diagnosed at a later

>> age? My daughter is " nearly nine " and does not follow the typical

>> CF pattern...no GI complications, no trouble with weight, just a

>> touch of asthma that began a few years ago (confirmed with allergy

>> testing/PFT's). Additionally, there is no family history of this

>> disease on either side of the family. This has totally caught us

>> off guard.

>

>Hi Polly

>

>My name is Barbara and I have a daughter Kristy (now 13) who was

>finally diagnosed with 'mild' CF last year at age 12. She certainly

>didn't follow the typical pattern either.

>

>Kristy has had 2 negative sweat tests in the past...one at 4 months

>and one at 9 - we were assured both times she definitely did not

>have cf. She was finally diagnosed based on symptoms and it was

>confirmed by a nasal potential difference test. She had chest

>problems ongoing from mid 2000. Kristy is also asthmatic...she was

>diagnosed with that at 2.

>

>>

>> My final question (for now) is do you have yourselves and your

>other

>> children tested after confirmation of a CF diagnosis? I would

>> gather that this is a " no brainer " and expect the answer to be

>yes.

>> If so, sweat vs. DNA?

>

>My elder daughter had blood tests which we were told no not show any

>of the common identified cf genes, however, she does suffer chest

>problems too. My husband and I were tested when Kristy was 4 months

>because she carries one identified gene (508) only and one of us

>carries that gene too.

>

>Barbara (Australia)

>mum to Kristy 13 - wcf

>

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>-------------------------------------------

>The opinions and information exchanged on this list should IN NO WAY

>be construed as medical advice.

>

>PLEASE CONSULT YOUR PHYSICIAN BEFORE CHANGING ANY MEDICATIONS OR

TREATMENTS.

>

>------------------------------------

>

>

>

[Guest guest]

I think that a description is still on the Stanford Cystic Fibrosis Center

website; if not, just type in to your bowser, whichever one you use:

nasal potential difference test, cystic fibrosis--that should bring it up.

n, who is running like mad, and expecting a delivery, or would

find the link and send it to you.

Sorry, your friendly floppy, salty cfer list member