What method might be used to administer IV fluids?

Administering IV fluids via a heparin or saline lock is a common and effective method. A heparin or saline lock involves inserting a catheter into a vein, which is then secured in place and can be intermittently accessed for medication administration or fluid delivery without the need for continuous infusion. This approach allows for immediate access to the bloodstream while minimizing the risk of complications associated with more invasive methods.

Other methods mentioned, such as using a nebulizer or administering the fluids orally or intramuscularly, are not appropriate for intravenous fluids. A nebulizer is used for inhaling medication directly into the lungs, oral administration bypasses the need for intravenous access entirely, and intramuscular injections do not provide the continuous fluid delivery that IV therapy is designed for. Therefore, the heparin or saline lock method is specifically intended for safe and effective IV fluid administration.