⚠️Vitamin D (25-OH)
18 ng/mLBelow the 30 ng/mL lower bound used by many labs. Many adults sit here in winter or with limited sun exposure — a clinician can discuss whether supplementation makes sense.
Read moreVitamin D test analyzer
Vitamin D test results explained in plain English
Upload your report and get a plain-English explanation of your 25-OH Vitamin D result.
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Vitamin D
38 ng/mL
In range · 25-OH
Calcium
9.6 mg/dL
In range
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Before · After
From a 25-OH Vitamin D number to calm context
Vitamin D ranges vary slightly between labs. LabTestly shows your value against your lab's range and explains what "low" or "borderline" usually means.
cbc_results.pdfOriginal lab report
25-OH Vitamin D · Lab Report
| TEST | RESULT | REF |
|---|---|---|
| VITD | 18 ng/mL | 30–100 L |
| CA | 9.4 mg/dL | 8.5–10.5 |
| PHOS | 4.6 mg/dL | 2.5–4.5H |
| MG | 2.0 mg/dL | 1.7–2.2 |
- What does a vitamin D level of 38 ng/mL mean?
- How is 25(OH)D different from 1,25(OH)2D?
- How often should I re-test vitamin D?
- How are vitamin D and calcium related?
- What affects vitamin D levels?
- What does a vitamin D deficiency mean?
- Does the season of the year affect vitamin D levels?
LabTestly — Plain EnglishPlain-English explanation
💚Calcium
9.4 mg/dLComfortably in range. Calcium and vitamin D are sometimes interpreted together when bone-health is being discussed.
Read more⚠️Phosphorus
4.6 mg/dLJust above the 4.5 upper bound. Phosphorus moves with calcium and PTH; mild elevations are common and rarely interpreted alone.
Read more💚Magnesium
2.0 mg/dLInside range. Magnesium is sometimes included in nutritional panels alongside calcium and vitamin D.
Read moreEvery answer is grounded in your uploaded report — for general understanding, not a diagnosis.
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What LabTestly helps you understand
Read your result with calm context
- See where your Vitamin D sits relative to the lab range
- Understand low, borderline, and high values
- Read Vitamin D alongside calcium when present
- Compare future Vitamin D tests over time
Example questions you can ask after uploading
- “What does my Vitamin D result mean?”
- “Is my Vitamin D below the lab’s range?”
- “How does Vitamin D fit with calcium?”
- “What should I ask my clinician about Vitamin D?”
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The standard test measures 25-hydroxy Vitamin D — the storage form of Vitamin D, which reflects what your body has on hand for use.
Limited sun exposure, darker skin tones, older age, malabsorption conditions, and certain medications. Many people in winter climates see lower values.
No. LabTestly explains the result and reference range. Supplementation decisions belong with a clinician who can weigh your full context.
Yes — once you upload multiple reports the dashboard shows your Vitamin D trend.
No. LabTestly is an educational tool that explains what blood test values mean in plain language. It is not a substitute for professional medical advice, diagnosis, or treatment. We always encourage you to discuss your results with your doctor — every interpretation includes that reminder.
We accept PDFs, JPEGs, PNGs, and WebP files up to 10 MB. This covers printed lab reports, scanned documents, photos taken on your phone, and screenshots from patient portals like MyChart or Quest Diagnostics. If your lab sends a PDF by email, you can upload that directly.
Our AI is trained on medical literature and uses established clinical reference ranges. Interpretations are carefully worded to be educational and accurate. That said, lab values can be affected by many factors — time of day, recent meals, medications — which is why we always encourage a conversation with your doctor for full context.
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We cover most standard blood panels including Complete Blood Count (CBC), Comprehensive Metabolic Panel (CMP), Basic Metabolic Panel (BMP), Lipid Panel, Thyroid function (TSH, T3, T4), Vitamin D and B12, Iron studies, HbA1c, and more. If you upload a panel we don't recognize, we'll tell you.
Absolutely. Every interpretation can be downloaded as a PDF or shared via a secure, expiring link. Many of our users bring their LabTestly summary to appointments as a conversation starter. It's designed to complement — not replace — the doctor-patient relationship.
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Often reviewed alongside this one. Each opens its own plain-English landing.
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- 🧪 Comprehensive Metabolic PanelUpload your CMP report and get a plain-English explanation of your metabolic, liver, kidney, electrolyte, and protein markers.Open landing →
- 📊 Basic Metabolic PanelUpload your BMP report and see what glucose, electrolytes, calcium, BUN, and creatinine mean in plain English.Open landing →
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Reviewed by the LabTestly clinical content team · Last updated
This is for general understanding only and does not replace medical advice from your clinician.