Clinical Minute #002: The IV Worked. Then It “Blew.” What Happened?

The IV was working. Then suddenly it wasn’t. What changed?

A peripheral IV can look perfectly successful at insertion and fail minutes or hours later. In this one-page Clinical Minute, learn why “it blew” describes an outcome—not necessarily the mechanism.

You’ll learn:

• Why a previously functioning IV can suddenly fail

• How catheter movement and dislodgement contribute

• Why vein–catheter mismatch matters

• The difference between infiltration and extravasation

• How occlusion and positional problems can mimic failure

• What to reassess before continuing to use the IV

Clinical Pearl: An IV that worked earlier is not proven safe now. New symptoms or changed function are new information.

Fast answers. Real-world clinical problems. One page.

Designed for nurses, nursing students, anesthesia professionals, paramedics and other clinicians who place or manage peripheral IVs.

Instant PDF download.

For professional education only. This resource does not replace clinical training, institutional policy, manufacturer instructions or patient-specific clinical judgment.