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.
The estimated glomerular filtration rate (eGFR) is calculated a little differently for African-American patients.This is because African Americans have more muscle mass than other groups.lomerular filtration rate is a calculated measure of kidney function. The result is calculated compared to tabl â¦ es of norms by age, race, and gender. Since clinicians don't often mark race on the lab requisition, the labs provide the norms for African American GFR and non-African American GFR.