I-GFR Calculator (eGFR, CKD-EPI)
Ubalo lomsebenzi wezintso (eGFR) ngokusekwe kwi-creatinine, ubudala nodidi lwesini, kunye nenqanaba le-CKD.
Iinketho ze projekti
Malunga nale Calculator
A GFR calculator estimates the glomerular filtration rate — how well the kidneys filter blood — from a serum creatinine test, age and sex. It uses the race-free 2021 CKD-EPI creatinine equation, reporting eGFR in mL/min/1.73 m² and the matching chronic kidney disease (CKD) stage from G1 to G5. This is an estimate for education only and does not replace testing or advice from a clinician.
The equation weighs creatinine against a sex-specific constant, then adjusts for age. For a 50-year-old man with a serum creatinine of 1.0 mg/dL, CKD-EPI returns an eGFR of about 92 mL/min/1.73 m², which is stage G1 — normal function. A woman with the same creatinine reads slightly differently because the equation uses a lower constant (0.7 versus 0.9) and a 1.012 sex factor. Enter creatinine in mg/dL or µmol/L and the tool converts.
The result maps to a CKD stage: 90+ is G1, 60–89 G2, 45–59 and 30–44 are G3a and G3b, 15–29 is G4 and below 15 is kidney failure (G5). Stages G3 and worse usually prompt medical follow-up. Because eGFR rests on a single creatinine value and is affected by muscle mass and diet, it is a screening estimate, not a diagnosis — confirm any concern with a clinician.
Imibuzo ebuza rhoqo
Yintoni i-CKD-EPI elinganayo?
Le yifomula eqhelekileyo yokuqikelela i-GFR evela kwi-creatinine: i-eGFR = 142 × min(Scr/κ,1)^α × max(Scr/κ,1)^−1.200 × 0.9938^age × 1.012 (ukuba ngumntu owesifazane), apho i-κ ne-α zixhomekeke kuhlobo lwesini. Uhlobo lwe-2021 lususe i-race coefficient.
Ithetha ntoni inani le-GFR?
I-eGFR eyi-90 okanye ngaphezulu ngaphandle kwezinye iimpawu iqhelekileyo; i-60-89 iphantsi kancinci; i-45-59 ne-30-44 ziinkqubo zeG3a neG3b; i-15-29 inzima (G4) kwaye ingaphantsi kwe-15 isifo sokudumba kweentliziyo (G5). Iinkqubo zeG3-G5 zifuna ukulandela unyango.
Ingaba le ngxaki ibonisa ukuba unesifo seentliziyo?
Ayikho. I-eGFR yixabiso elilinganiselweyo elinokuthi lichaphazeleke ngumthwalo wemisipha, ukutya kunye nokufunda kwe-creatinine. Umhlaza webele oqhubekayo uvavanywa ngumboneleli ngezempilo ngokuphindaphinda uvavanyo ngexesha elifanayo kunye novavanyo lwegazi kunye nezinye izinto ezifunyenwe.
Yintoni i-eGFR eqhelekileyo?
U-eGFR omalunga ne-90 okanye ngaphezulu ngaphandle kwezinye iimpawu zokusilela kweentso zithathwa njengeziqhelekileyo. Umntu oneminyaka engama-50 ubudala onekreatinini emalunga ne-1.0 mg/dL uphuma eneminyaka engama-92, ekwinqanaba le-G1.
What eGFR counts as stage 3 kidney disease?
Inqanaba leG3a li-eGFR ye-45-59 kwaye inqanaba leG3b li-30-44, elibonisa ukulahleka okuncinci kokusebenza kokucoca. Ezi nqanaba zihlala zifuna ukujongana nazo kwaye zilawulwa ngumboneleli ngezempilo.
Kutheni le nto i-equation ikhupha i-eGFR xa ndikhula?
Ukucoca kuhla ngokuqhelekileyo kwiminyaka edlulayo, ngoko ke i-CKD-EPI iquka ubudala (0.9938 enyuka ngobudala bakho). Ukunciphisa okuncinci kwe-eGFR kubantu abadala akuthethi ukuba unesifo seentliziyo.
Yintoni eyenza ukuba i-creatinine yeserum ikhuphe okanye ikhuphe?
Ubunzima bamathambo obuphezulu, ukutya okunzima okuqulethe inyama kunye nokutshisa amanzi kukhupha i-creatinine kwaye kunyusa i-GFR eqikelelwayo, ngelixa ubunzima bamathambo obuphantsi kukhupha i-GFR eqikelelwayo. Kuba i-eGFR ixhomekeke kulo xabiso elinye, kufuneka uphinde uvavanyo ukuze ufunde kakuhle.
API — sebenzisa le calculator ukusuka kwikhowudi
Nceda le khadi lemali njengendawo esemva ye-JSON ekhululekileyo - akukho qhosha lifunekayo. Thumela amaxabiso endawo ezantsi njengeparameter yombuzo okanye i-JSON. Nantoni na oyenzayo isebenzisa okungagqibekanga okufanayo eli phepha ligqityiwe ngaphambili; iparameter engaziwayo yi 400, ayikho i zero ekhululekileyo. Funda i-API epheleleyo →
Incopho yesiphelo
GET https://calculator.free/api/v1/gfr/curl
curl "https://calculator.free/api/v1/gfr/?age=50&sex=male&creatinine=1.0&units=mgdl"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/gfr/?" + new URLSearchParams({
"age": "50",
"sex": "male",
"creatinine": "1.0",
"units": "mgdl"
}));
const data = await r.json();
console.log(data.results);Results are estimates for general guidance only, not financial, medical or tax advice.