D dimer: While d dimer is often used to help diagnose blood clots, it can also be elevated with inflammation. ... Read more Dr. Ed Friedlander Dr. Friedlander
Definition of regimen. 1  1a : a systematic plan (as of diet, therapy, or medication) especially when designed to improve and maintain the health of a patientb : a regular course of action and especially of strenuous training the daily regimen of athletes. 2  2 : government, rule. 3  3 : regime 1c.
I'll expand on that a bit. PRN stands for Pro Re Nata, which is Latin literally meaning For the thing born.. In medicine, it means As needed or As the situation arises. It means that using the drug is up to the caregiver or the patient as the need warrants.For pain drugs, acute pain meds like Vicodin or Percocet are PRN-type drugs.n medicine, it means As needed or As the situation arises. It means that using the drug is up to the caregiver or the patient as the need warrants. For pain drugs, acute pain meds like Vicodin or Percocet are PRN-type drugs.