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Salivary gland scan

A Salivary gland scan is a nuclear medicine test of the salivary glands. It shows salivary gland function. Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year).

General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.

SmartAnswer by DigiNepal SI

A Salivary gland scan is a nuclear medicine test of the salivary glands. It shows salivary gland function. 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: Salivary gland function. generated by SI from cited sources · general information, not a diagnosis · consult a health professional

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

What it shows

Salivary gland function.

Why it is done

Dry mouth (for example Sjogren's syndrome).

Preparation

A small radioactive tracer is injected or swallowed. Preparation depends on the test; tell staff if pregnant or breastfeeding, as feeding may need a pause.

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

about 1 hour. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

Sample type

Nuclear medicine

Consult a doctor to interpret results — a single test does not make a diagnosis.

Where to get this near you

Care near you

Uses your location once to list the nearest facilities. Nothing is stored.

Common questions

What does a salivary scintigraphy show?
Salivary gland function.

Why is a salivary scintigraphy done?
Dry mouth (for example Sjogren's syndrome).

How do I prepare for a salivary scintigraphy?
A small radioactive tracer is injected or swallowed. Preparation depends on the test; tell staff if pregnant or breastfeeding, as feeding may need a pause.

Does a salivary scintigraphy 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 salivary scintigraphy take?
about 1 hour

Why is Salivary gland scan done?
Dry mouth (for example Sjogren's syndrome).

How do I prepare for Salivary gland scan?
A small radioactive tracer is injected or swallowed. Preparation depends on the test; tell staff if pregnant or breastfeeding, as feeding may need a pause.

Is Salivary gland scan safe in pregnancy?
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.

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

Emergency — call102