Which part of the syringe indicates it is an aspirating syringe?

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Multiple Choice

Which part of the syringe indicates it is an aspirating syringe?

Explanation:
The ability to aspirate is signaled by the harpoon inside the syringe. This small, sharp rod punctures and anchors the rubber stopper of the carpule, allowing the plunger to be drawn back to create negative pressure. When you aspirate, if blood appears in the cartridge, you know the needle is in a blood vessel and you can adjust your injection. The barrel, plunger, and needle are common to both aspirating and non-aspirating syringes, so they don’t indicate whether the syringe can aspirate. The harpoon is the feature that marks an aspirating syringe.

The ability to aspirate is signaled by the harpoon inside the syringe. This small, sharp rod punctures and anchors the rubber stopper of the carpule, allowing the plunger to be drawn back to create negative pressure. When you aspirate, if blood appears in the cartridge, you know the needle is in a blood vessel and you can adjust your injection. The barrel, plunger, and needle are common to both aspirating and non-aspirating syringes, so they don’t indicate whether the syringe can aspirate. The harpoon is the feature that marks an aspirating syringe.

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