Which of the following is true regarding volume measurement for GRV?

• A. A 60 mL syringe is recommended for measuring GRVs
• B. A 5 mL syringe is recommended
• C. A 10 mL syringe is recommended
• D. A 100 mL syringe is recommended

Answer: (A)

When measuring gastric residual volume, you want a syringe size that allows you to withdraw the contents easily in one or a few smooth attempts and to read a reliable volume without applying excessive force. A 60 mL syringe is the standard because it provides a practical balance: large enough to pull out typical GRV amounts without needing to refill, while still giving you good control over the suction. Smaller syringes (like 5 or 10 mL) require many pulls and can generate high negative pressure, increasing the risk of incomplete aspiration or tube irritation. A very large syringe (such as 100 mL) is harder to manage and can be less precise in handling and measurement. So the 60 mL syringe offers the best combination of efficiency, control, and accuracy for GRV measurement.