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.
Bites from a black widow spider may be severe, since they can cause sharp pain, swelling, and redness. One may find one or two red fang marks on the skin and a nodule at the bitten site. Severe symptoms like nausea, vomiting, muscle cramps, seizures, and an increase in blood pressure may follow.