No single rate of administration or composition of maintenance intravenous fluids is appropriate in all circumstances. Thus, intravenous fluids may be viewed as medications that require careful dose adjustment that is specific to the disease state of each patient.
Codeine - 1 day in urine, up to 90 days in hair, 12 hours in blood. Fentanyl - 1 day in urine, up to 90 days in hair, 4 hours in blood. Morphine - 2 -3 days in urine, up to 90 in hair, 6 - 8 hours in blood. Heroin - 3 to 4 days in urine, up to 90 in hair, up to 12 hours in blood.
When attempting to figure out precisely how long this medication will last in your system, you should know that a handful of factors would play a role in this determination. Your metabolism, body weight and immune system will all play a role. However, the average is right around ten to twelve hours.