Final answer:
The mL/hr rate for the Heparin IV order would be approximately 50 mL/hr.
Step-by-step explanation:
To find the mL/hr rate, we can use the formula:
mL/hr = (units/hr * mL in available) / units in available
Given that the order is for 1254 units/hr and there are 25,000 units of Heparin in 1000 mL NS, we can substitute these values into the formula:
mL/hr = (1254 units/hr * 1000 mL) / 25,000 units
Simplifying the equation gives:
mL/hr = 50.16 mL/hr
Since this is an IV rate, we should round appropriately. Rounding to the nearest whole number, the mL/hr rate would be 50 mL/hr.