Chest pain may be caused by poor blood flow to the heart leading to angina, or by a sudden blockage in the coronary arteries resulting in a heart attack. Other causes of chest pain can include indigestion, reflux, muscle strain, inflammation in the rib joints near the breastbone, and herpes zoster or shingles.
Your GFR tells your doctor your stage of kidney disease and helps the doctor plan your treatment. If your GFR number is low, your kidneys are not working as well as they should.
Expert: A. Schuyler, NP replied 6 years ago. Hello, Welcome to Just Answer and thanks for your question. eGFR is estimated glomerular filtration rate, which is a calculated number based on age, sex, race, and serum creatinine results. The AA stands for African American and the C stands for Caucasian.