High or Fluctuating Chromogranin A Level: What does it mean?

The only person who suggested anything was my Allergist. He wants me to try a bunch of medications to see if I feel better. I’m not really comfortable with this approach.

I’ve been reading studies about that. No one seems to know how much of an effect it would have on the test. Even oncologist was unsure. They want me to go off the nexium for one week before having another blood test but I’m concerned about that. I take Nexium for a reason.

Taking a break for the test makes sense. I hope you sail through ok.

@eljay1

You might ask your doctor if you can substitute a non-PPI med, like Pepcid, for the week you need to be off the Nexium and see what the doctor says. Pepcid is not as effective as Nexium, but it might provide some relief for a week.

I hope you get answers soon. As someone who recently had a lung NET I know the waiting can be very hard. I leaned into my faith and that helped me. Continue to advocate for yourself.

I take a lot of ppi daily I have never been told to stop them before testing and I have asked if I should. They test for Gastrin at the same time if tumors are progressing they go up together if tumors shrink after a treatment they go down together it is a marker between treatments as to what may be happening. Not an expert but that is my understanding and history. So the way I see it if they are not checking for excess hormone levels from functioning tumors it may be a good indicator of what may be happening.

Hello @sydmiller1 and welcome to the NETs support group on Mayo Connect. It appears from your post that you have recently been diagnosed with a lung NET? Were you having symptoms that led to the discovery of the lung NET?

I invite you to meet some of the members of Connect who have posted about lung NETs. Here is the link to many of those posts :
https://connect.mayoclinic.org/group/neuroendocrine-tumors-nets/
I would also like to invite @californiazebra to this discussion since she has been dealing with lung NETs for many years,

Have you begun any treatments yet, such as monthly injections or surgery?

@eljay1

As you mentioned, as a possible diagnosis of MCAS, I found several posts on Connect where this has been discussed. Here is a link to those discussions.
https://connect.mayoclinic.org/search/
I encourage you to read the posts and make comments or ask questions to any of the members who have posted about this issue.

Hello everybody, I hope you are all doing well.
I'm quite worried for my mom (she is the only person I have left in my life), she's 67, has a dolichocolon, and lately they found that her chromogranin A is at 131,5.
Other exams such as CRP, inflammation etc are normal.
She isn't on any medications.

Has anyone of you had a bit high Chromogranin A for no reason? I mean with nothing bad going on, and levels fluctuating ?
6 years ago she was at 100, then at 74. The didn't retest after.

She's having ultrasounds in 3 weeks, I'm just a bit (a lot?) worried during the wait... 🙁
Thanks so much

@cinephile10: ChromograninA results can vary and 1350 is certainly questionable. I have heard this test result can be different regarding the time of day, what supplements or medications ingested as well as foods. It is only part of a diagnosis.
My personal experience says: However, this test result, along with 24hr urine lab and other tests can reveal a serious disease that needs immediate treatment. Perhaps the Dr ordered ultrasound will reveal a suspicious area to be further investigated (biopsy leaves no doubts and will lead to diagnosis).
I don’t share this opinion to scare you, but your 67 yr Mother needs to see the elevated ChromograninA test result as a Warning Sign. I hope this helps you in your combined decisions for best health. Be pro-active and stay informed. Bette dbamos1945