Reading a Syringe in Vet Science

Reading a Syringe in Vet Science

By Katherine Furgeson

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Parts of a syringe:

• Barrel

• Plunger

• Tip​

• Needle

• Cap​

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• Luer-Lok

• Slip Tip

• Eccentric

• Catheter Tip​

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​Types of syringes:

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How to read a syringe​

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Equation for calculating volume in a syringe:

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number of first large stamped line​

number of lines to get to that first line

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1/5 or one divided by five =

0.2

That means each small line is worth 0.2 mL. Now we have to read how much medication we have. ​

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​Make your numerator and denominator

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We see we have 4 whole mL. But we also see 3 small lines, each being worth 0.2 so if you times 0.2 by 3 we get ​0.6 leaving us with a total of 4.6 mL.

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​5/5 = 1 so each small line is worth 1 mL. We see we have 10 full mL but we also have 2 small lines after that. Our total volume is 12 mL.

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Find your numerator and denominator. ​

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Remember to make your numerator and denominator then divide. That's the value of each small line in the syringe. You​ then need to multiply that value by the number of lines you have filled.

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​Side note:

• 1/2 = 0.5

• 1/4 = 0.25

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