🤰 Pregnancy Fetal Dose Magnitude Table
Typical fetal dose magnitude table for common exams.
Clinical takeaway
Not individualized; avoid I-131.
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When to use
Consent order-of-magnitude.
How it works
ICRP 84-style mGy.
Key points
- Not individualized; avoid I-131.
References
- ICRP Publication 84
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.
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.
| Exam type | Bone Tc-99m MDP |
|---|
→typical fetal dose4mGy
- range：3–5
- exam：tc99m_mdp_bone
- I-131：n/a
| Exam type | I-131 therapy (contraindicated) |
|---|
→typical fetal dose100mGy
- range：contraindicated
- exam：i131_therapy
- I-131：avoid/contraindicated
Frequently asked questions
- What is Pregnancy Fetal Dose Magnitude Table?
- Typical fetal dose magnitude table for common exams.
- How is Pregnancy Fetal Dose Magnitude Table calculated? What is the core formula?
- ICRP 84-style mGy.
- When is Pregnancy Fetal Dose Magnitude Table used?
- Consent order-of-magnitude.
- What are the key clinical points for Pregnancy Fetal Dose Magnitude Table?
- Not individualized; avoid I-131.
- What are the limits and cautions when using Pregnancy Fetal Dose Magnitude Table?
- 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.
- How is Pregnancy Fetal Dose Magnitude Table calculated in practice? Can you show a worked example?
- Inputs: Exam type Bone Tc-99m MDP → Result: typical fetal dose 4 mGy（range: 3–5, exam: tc99m_mdp_bone, I-131: n/a） Inputs: Exam type I-131 therapy (contraindicated) → Result: typical fetal dose 100 mGy（range: contraindicated, exam: i131_therapy, I-131: avoid/contraindicated）
💬 Peer discussion
Licensed clinicians only — about this Tool · Fetal dose table
Do not share identifiable patient information (PHI). Discuss principles and workflow only — not a substitute for clinical judgement.
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