🦋 Thyroid Uptake % (probe counts)
UseBedside RAIU arithmetic.
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SourceClassic probe RAIU methodology
Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
Score + version; reference only — not a substitute for care · no HIS write
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Methodology · worked example, guidelines & full notes
Clinical takeaway
Site geometry/SOP.
When to use
Bedside RAIU arithmetic.
How it works
%≈100×(neck−bkg)/(std×decay).
Key points
- Site geometry/SOP.
References
- Classic probe RAIU methodology
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Neck counts | 50000 |
|---|---|
| Thigh/background counts | 2000 |
| Standard/phantom counts | 200000 |
| Hours since administration | 24 h |
| Nuclide | I-131 |
→% uptake26.17%
- net：48000
- decay factor：0.9172
- T½：192.48 h
| Neck counts | 50000 |
|---|---|
| Thigh/background counts | 2000 |
| Standard/phantom counts | 200000 |
| Hours since administration | 24 h |
| Nuclide | I-123 |
→% uptake84.63%
- net：48000
- decay factor：0.2836
- T½：13.2 h
Verification & sources · governance
FAQ
Frequently asked questions
- What are the limits and cautions when using Thyroid Uptake % (probe counts)?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- Does Thyroid Uptake % (probe counts) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is Thyroid Uptake % (probe counts) calculated in practice? Can you show a worked example?
- Inputs: Neck counts 50000, Thigh/background counts 2000, Standard/phantom counts 200000, Hours since administration 24 h, Nuclide I-131 → Result: % uptake 26.17 %（net: 48000, decay factor: 0.9172, T½: 192.48 h） Inputs: Neck counts 50000, Thigh/background counts 2000, Standard/phantom counts 200000, Hours since administration 24 h, Nuclide I-123 → Result: % uptake 84.63 %（net: 48000, decay factor: 0.2836, T½: 13.2 h）