1. Abbreviation for Certified Registered Nurse Practitioner. The definition information for CRNP is provided by Stedman's. You can search our medical dictionary here.he definition information for CRNP is provided by Stedman's. You can search our medical dictionary here.
1 Other symptoms include fever, chills, nausea, vomiting, muscle aches and hemolytic anemia (a condition where the red blood cells are destroyed).  People bitten by an unseen spider sometimes blame the brown recluse spider because their bite resembles a brown recluse spider bite.
How Long Do Spider Bites Last? The most common reactions to spider bites are minor swelling, redness, pain and itchiness. Non-venomous spider bites may produce pain and itchiness on the affected area that will last for two to eight hours.