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.
Some insect and spider bites or stings can cause flu-like symptoms to develop within hours of a bite or sting. Or symptoms may be delayed up to 3 weeks. Flu-like symptoms include: Fever. Shaking chills. Muscle or joint aches. Headache. Swollen glands. A vague feeling of illness (malaise). Flu-like symptoms may not be caused by a bite or sting, but they may mean a more serious problem. Examples of a more serious problems include: A toxic reaction, which occurs when insect or spider venom acts like a poison in the body.