At minimum, how often should IV sites be checked for patency and integrity?

• A. Every 4 hours
• B. Every 2 hours
• C. Every 8 hours
• D. Only when the patient reports discomfort

Answer: (A)

Regular IV-site assessment is essential to catch problems early and keep the infusion safe. Checking patency and integrity at least every four hours helps detect issues like infiltration, phlebitis, or catheter occlusion before they cause harm. Patency means the line is open and fluid is flowing smoothly, which you can gauge by observing the infusion and, when appropriate, performing a gentle flush. Integrity means the dressing, tubing, and securing need to be intact, with no leaks, redness along the vein, swelling, or dislodgement.

Some situations require more frequent checks—such as when the patient is receiving irritating or vesicant solutions, when venous access is difficult, or if there are any signs of trouble. Waiting for the patient to report discomfort is not enough, because early problems may be subtle or unnoticed.