During saline circulation, which action is performed on the arterial line?

During saline circulation, which action is performed on the arterial line?

• A. Tap
• B. Pinch and release
• C. Clamp
• D. Twist

Answer: (B)

Maintaining a clear, patent arterial line during saline circulation requires a controlled, gentle method to push saline through and expel air. Pinching and releasing a small segment of the arterial line creates this controlled push, helping move saline forward and prevent air from entering the line. This technique lets you primes the line, check that flow is steady, and remove any air bubbles before connecting to the patient. Tapping doesn’t reliably clear air or ensure patency, clamping would stop flow entirely, and twisting can kink or damage the tubing. So the best action is to pinch and release.

Maintaining a clear, patent arterial line during saline circulation requires a controlled, gentle method to push saline through and expel air. Pinching and releasing a small segment of the arterial line creates this controlled push, helping move saline forward and prevent air from entering the line. This technique lets you primes the line, check that flow is steady, and remove any air bubbles before connecting to the patient. Tapping doesn’t reliably clear air or ensure patency, clamping would stop flow entirely, and twisting can kink or damage the tubing. So the best action is to pinch and release.