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.
Speak to your doctor if you have any ques-. tions about your stage of kidney disease or your treatment. Stages of Kidney Disease. *your GFR number tells your doctor how much kidney function you have. as chronic kidney disease progresses, your GFR number decreases.