That's a genuinely puzzling set of results, and it's completely understandable to want to make sense of them. Here's a breakdown to help frame the conversation with a rheumatologist.
The Two dsDNA Tests
These two tests detect anti-dsDNA antibodies differently:
- dsDNA IFA is more sensitive, meaning it picks up more positives — Show Full Answer
That's a genuinely puzzling set of results, and it's completely understandable to want to make sense of them. Here's a breakdown to help frame the conversation with a rheumatologist.
The Two dsDNA Tests
These two tests detect anti-dsDNA antibodies differently:
- dsDNA IFA is more sensitive, meaning it picks up more positives — but it can also flag things that aren't truly lupus-specific
- dsDNA Crithidia is considered more specific to lupus, meaning a positive result is a stronger indicator of lupus activity
A positive IFA but negative Crithidia result can happen, and it doesn't necessarily cancel out — it just means the picture needs more context. The Speckled ANA Pattern at 1:320
A speckled pattern at 1:320 is a meaningful positive. Research suggests that people with speckled patterns may have a higher risk of organ involvement and more significant symptoms — though no single pattern tells the whole story on its own. Putting It All Together
With symptoms like hematuria (blood in urine), Raynaud's, and chest rashes, combined with a high IFA and positive speckled ANA, there's enough here that warrants a thorough rheumatology review. Lupus diagnosis relies on the full picture — symptoms, history, and multiple test results together.
A rheumatologist may consider additional tests such as:
- Complement levels (C3/C4) — often low during lupus activity
- Urinalysis or kidney function tests — especially given the hematuria
- Complete blood count — to check for lupus-related blood changes
The negative Crithidia doesn't rule things out, especially at 67 with mild but real symptoms. This combination of results is worth a detailed conversation with a specialist who knows the full history.
May 18
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