prn order

prn order

Clinical pharmacology Any physician-promulgated mandate or regimen–'doctor's orders' that allows use of a therapy or modality as needed–Latin pro re nata–by the Pt; in certain situations–eg, malignancy or other terminal illnesses, PRN orders, in particular those for controlling pain–schedule II through V controlled substances, are more liberal. See Patient-controlled analgesia.

Patient discussion about prn order

Q. What do i require to do in order to keep me thin and healthy as i am now? i am 25 years old , i am doing relatively sufficient amount of sport - basketball for 3 hours once a week , how would i manage to keep my fitness ?

A. i think you are doing a great job...although i think that doing a one hour of exercise 3 times a week is much better then 3 hours exercise once a week.

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Morehouse's order for procardia was a PRN order and the medication ordered should have been given when the patient's blood pressure was found to be 173/100.
This defeats the purpose of a PRN order, he says, and "is very poor practice."
The medication sheets revealed prn orders for only Tylenol and Milk of Magnesia.