A client has a prescription for heparin 1,000 units IV STAT. Several pre filled syringes of low molecular weight heparin are available in the dient's medication drawer. Which action should the nurse implement?

A) Dilute the available heparin in 250 mL of normal saline solution prior to IV administration: This action is inappropriate because heparin should not be diluted in this manner before administration. Heparin is typically administered as a bolus or infusion without dilution unless specifically ordered. B) Calculate and administer the equivalent dose of the available low molecular weight heparin: Low molecular weight heparin (LMWH) is not interchangeable with unfractionated heparin, and calculating an equivalent dose would not be appropriate. Each type of heparin has different dosing protocols and uses. C) Advise the pharmacy of the need to deliver a vial of heparin to the nursing unit immediately: This is the correct action because the prescription is for unfractionated heparin, and the nurse should ensure that the correct medication is available for administration. Notifying the pharmacy for the appropriate medication is crucial for patient safety and timely treatment. D) Request a prescription to change the route of administration and use the available heparin: Changing the route of administration without proper orders is not appropriate. If the prescribed medication is not available, it is better to obtain the correct medication rather than altering the treatment plan without guidance from the healthcare provider.