HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

I recently had a celiac panel done and it came back negative. however the immunoglobulin a, qn, serum level was low at 59. is this serious?

A doctor has provided 1 answer
Dr. John Chiu answered

Unlikely: Low IgA occurs in about 1/333 people. Most people with this isolated deficiency do not have problem. A very low IgA level may make a celiac test based on IgA antibody false-negative- ie. The disease is there but the test fails to detect it. However yours is not low enough.

Answered 3/23/2015

4.7k views

Thank

Related Questions

A member asked:

What is immunoglobulin g, qn, serum? My results came back low for subclass 3 out of the four.

A doctor has provided 1 answer

A member asked:

I have the following and no definitive diagnosis..low(8.3)hgb,hct(25), require IV iron every 4-6 mo. lately immunoglobulin m,qn serum 415.FATIGUE?

A doctor has provided 1 answer

A member asked:

My 3 year old immunoglobulin g qn serum level is high mg/dl 453-916 what does this mean?

A doctor has provided 1 answer

A member asked:

My blood work indicated I have low Immunoglobulin A, QN, Serum and Low Igg 1 and 3as well as 14 low Pneumococcal types; could this be why I have fatig?

A doctor has provided 1 answer

A member asked:

Immunoglobulin A, Qn, Serum is high @ 553. What does this mean. Ive been achy on and off and fatigued but all Lupus/Rheum labs are normal/negative. Why is this high? What causes it?

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

Does low serum globulin affect blood tests that assess immunoglobulin levels? For example if an illness caused proteinuria, could a disease actually cause the test for it to be falsely negative?
Daughter diagnosed with Celiac Disease 8 weeks ago. Now has severe itching on lower legs only at night time. Low white blood count and high Globulin Serum levels. Severe weight loss, and bruising What could cause this? Itching Issues
Is Immunoglobulin G (IGG) test different than TTG IGG test? Are results of these tests related at all? Or is TTG IGG test exclusive to celiac disease? Is ttg IGG result related to any other disease/infection?
Tissue Transglutaminase IgA Ab 1U/mL Immunoglobulin A (IgA) 376mg/dL range 47 - 310 mg/dL No Celiac Disease, but something else wrong? Experiencing diarrhea, hair loss, fatigue, weight loss and weight gain, constipation, loss of appetite?
My immunoglobulin g, qn, serum came back low at 635. What could that mean?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.