Crystalloid fluids, the most commonly used IV fluids, are made up of water and small molecules like electrolytes (sodium, potassium, chloride, and bicarbonate). These fluids have a short stay in the body and typically are cleared within 24 to 48 hours. In contrast, colloid fluids contain larger molecules like proteins and stay in the body for extended periods, with some studies indicating as long as 72 hours. The patient's metabolism also plays a key role in how long IV fluids stay in the body. For example, patients with kidney or liver problems have a slower metabolism, reducing the clearance rate of the fluids from their system. In addition to this, the rate of infusion can affect how long fluids stay in the body. Lower flow rates enable the fluids to remain in the bloodstream for more extended periods, whereas higher flow rates increase their clearance. At Express Health Urgent Care, we offer professional, safe, and effective IV therapy for those who need it. For more information about our IV services, contact us today, walk in for a same-day visit, or book in online to schedule an appointment down the line. We serve patients from Queens NY, Manhattan NYC, Midwood NY, Nostrand NYC, Ridgewood NYC, Metropolitan NYC, Staten Island, Greenwich Village NYC, and surrounding areas.