Quick answer
Emergency room nurses often start an IV (intravenous line) soon after a patient arrives so the care team has a fast, reliable way to give fluids and medications directly into a vein. A small, flexible tube called a catheter is placed in a vein, usually in the hand or arm. Having the IV in place lets the team act quickly if the patient’s condition changes.
What Is a Peripheral IV?
A peripheral IV is the most common type of IV. “Peripheral” means it goes into a vein in an arm, hand, or sometimes another limb, rather than a large vein near the heart. A needle guides a thin plastic catheter into the vein. The needle is then removed, and only the soft catheter stays in place, covered by a clear dressing and tape.
Why Emergency Teams Place IVs Early
- Speed. Medications given into a vein reach the bloodstream right away.
- Some medications only work by IV. Certain treatments must be given intravenously.
- Fluids. Patients who are dehydrated or losing fluids may need IV fluids.
- Readiness. In the emergency department, a patient’s condition can change. An IV that is already in place saves time if urgent treatment is needed.
What Does Getting an IV Feel Like?
Most people feel a quick pinch or sting when the needle goes in. After the catheter is placed, it usually feels like mild pressure or nothing at all. Let your nurse know if you have had trouble with IVs before, if you feel faint around needles, or if you have a preference for which arm is used.
What Nurses Watch For
An IV needs regular checks. The most common problems are:
- Infiltration: fluid leaks into the tissue around the vein, which can cause swelling, coolness, or tightness.
- Phlebitis: the vein becomes irritated or inflamed, which can cause redness, warmth, or pain along the vein.
- Dislodgement or blockage: the catheter slips out or stops flowing.
A large 2020 review of more than 76,000 peripheral IV catheters found phlebitis and infiltration were among the most common reasons IVs fail. That is why nurses look at the site often and ask patients how it feels.
What Patients Can Do
- Tell your nurse right away if the IV site hurts, burns, swells, or turns red.
- Try not to bend the arm sharply or pull on the tubing.
- Ask before moving around if you are connected to a pump.
- Ask what is running through your IV if you are not sure. Nurses check every medication before giving it, using the rights of medication administration.
When Is an IV Removed?
An IV comes out when it is no longer needed, when a problem develops at the site, or according to the hospital’s policy. If you go home from the emergency room, the nurse removes the IV before you leave and covers the site with a small bandage. Keep gentle pressure on it for a minute if it bleeds.
Frequently Asked Questions
Why do they put an IV in at the ER even if I don’t get medicine?
An IV may be placed early so it is ready if treatment is needed later. In an emergency setting, having access in place can save valuable time.
Does an IV hurt?
Most people feel a brief pinch when it is placed. Once the soft catheter is in, it usually causes little or no discomfort. Tell your nurse if pain continues.
What does it mean if my IV site is swollen?
Swelling can be a sign of infiltration, where fluid leaks into the surrounding tissue. Tell your nurse right away so they can check it.