Final answer:
Heparin dosing to increase ACT to 400-480 seconds can vary depending on the patient's weight, medical condition, and other factors.
Step-by-step explanation:
Heparin dosing is typically measured using the activated clotting time (ACT) test. If a target ACT range of 400-480 seconds is desired, the heparin dosage will vary depending on the patient's weight, medical condition, and other factors. The specific dosing regimen can be calculated using the appropriate nomogram or formula, such as the Heparin Nomogram, which takes into account the patient's weight and baseline ACT. It is important to consult with a healthcare professional to determine the appropriate heparin dosage for a patient.