# What syringe do I need for the IDDSI flow test?

Canonical: [https://followyourswallow.com/answers/what-syringe-for-iddsi-flow-test](https://followyourswallow.com/answers/what-syringe-for-iddsi-flow-test)

## Direct answer

A 10 mL slip-tip syringe with a scale length of 61.5 mm, matching the style shown in official IDDSI materials. Syringe barrel lengths vary by manufacturer, and a different barrel gives wrong results. Measure the 0–10 mL scale; it should be 61.5 mm long.

## Details

Pharmacies and online retailers sell suitable syringes inexpensively. Avoid catheter-tip and luer-lock styles with different barrel geometry.

Once you have the right syringe, our guided test times the 10 seconds for you and calculates the level from the milliliters remaining.



Clinical review: SLP review in progress

## Safety

Use only the food and drink levels prescribed by the person's qualified clinician. Test the actual serving before it is eaten or drunk.