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Thyroid scan (Tc-99m or iodine uptake)

A Thyroid scan (Tc-99m or iodine uptake) is a nuclear medicine test of the thyroid. It shows how active the thyroid or a nodule is. Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year).

सामान्य स्वास्थ्य जानकारी — यो निदान होइन। आपत्कालमा १०२ मा फोन गर्नुहोस्। सधैं योग्य स्वास्थ्यकर्मीसँग सल्लाह लिनुहोस्।

DigiNepal SI द्वारा SmartAnswer

A Thyroid scan (Tc-99m or iodine uptake) is a nuclear medicine test of the thyroid. It shows how active the thyroid or a nodule is. Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year). What it shows: How active the thyroid or a nodule is. DigiNepal SI द्वारा उद्धृत स्रोतहरूबाट तयार · सामान्य जानकारी, निदान होइन · स्वास्थ्यकर्मीसँग सल्लाह लिनुहोस्

स्रोत: SI health summary (own words); decoder imaging pack; RadiologyInfo.org and MedlinePlus as references only

What it shows

How active the thyroid or a nodule is.

Why it is done

Overactive thyroid, hot or cold nodules.

Preparation

Thyroid medicines and iodine-rich foods may need to be stopped beforehand, as advised.

Radiation & safety

Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

How long it takes

30 minutes to 24 hours. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

Sample type

Nuclear medicine

नतिजा व्याख्या गर्न डाक्टरलाई देखाउनुहोस् — एउटै परीक्षणले निदान गर्दैन।

सम्बन्धित अवस्था

entry-health-condition-hyperthyroid

यो कहाँ गर्न सकिन्छ

तपाईंनजिकको हेरचाह

नजिकका सुविधा देखाउन तपाईंको स्थान एक पटक प्रयोग गर्छ। केही सुरक्षित गरिँदैन।

सामान्य प्रश्न

What does a thyroid scan show?
How active the thyroid or a nodule is.

Why is a thyroid scan done?
Overactive thyroid, hot or cold nodules.

How do I prepare for a thyroid scan?
Thyroid medicines and iodine-rich foods may need to be stopped beforehand, as advised.

Does a thyroid scan use radiation?
Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

How long does a thyroid scan take?
30 minutes to 24 hours

Thyroid scan (Tc-99m or iodine uptake) किन गरिन्छ?
Overactive thyroid, hot or cold nodules.

Thyroid scan (Tc-99m or iodine uptake) का लागि कसरी तयारी गर्ने?
Thyroid medicines and iodine-rich foods may need to be stopped beforehand, as advised.

Thyroid scan (Tc-99m or iodine uptake) गर्भावस्थामा सुरक्षित छ?
Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

SI text CC BY 4.0; RadiologyInfo.org (ACR/RSNA) and MedlinePlus linked as references only, no text copied.

स्रोत: SI health summary (own words); decoder imaging pack; RadiologyInfo.org and MedlinePlus as references only

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