Buah pinggang menapis sisa dan lebihan air dari darah, dan menyeimbangkan garam serta mineral badan. Ujian darah fungsi buah pinggang (renal panel) mengukur beberapa nombor utama: kreatinin, eGFR (anggaran kadar penapisan) dan urea. Yang penting difahami — bukan semua nombor anda mahu rendah: kreatinin & urea patut berada dalam julat normal (tinggi = kurang baik), tetapi eGFR patut tinggi (semakin tinggi semakin cekap penapisan). Carta di bawah menjelaskan setiap satu.

Your kidneys filter waste and excess water from the blood, and balance the body's salts and minerals. A kidney function blood test (renal panel) measures a few key numbers: creatinine, eGFR (estimated filtration rate) and urea. The key thing to grasp — you don't want every number to be low: creatinine & urea should sit within the normal range (high = worse), but eGFR should be high (higher means more efficient filtering). The chart below explains each one.

Kenapa Angka Ini Penting — Malaysia

Why This Number Matters — Malaysia

Diabetes (kencing manis) dan tekanan darah tinggi adalah dua punca utama kegagalan buah pinggang di Malaysia — dan kedua-duanya amat biasa. Masalahnya, kerosakan buah pinggang peringkat awal hampir selalu tanpa simptom: ramai orang rasa sihat sepenuhnya walaupun fungsi sudah menurun secara senyap. Mengetahui bacaan kreatinin & eGFR awal membolehkan kawalan punca sebelum kerosakan menjadi lebih teruk.

Diabetes and high blood pressure are the two leading causes of kidney failure in Malaysia — and both are very common. The problem is that early kidney damage is almost always symptom-free: many people feel perfectly well even as function quietly declines. Knowing your creatinine & eGFR early lets you control the causes before the damage worsens.

Carta Fungsi Buah Pinggang — Kreatinin, eGFR & Urea

Kidney Function Chart — Creatinine, eGFR & Urea

Padankan setiap baris keputusan anda. Nilai di bawah ialah julat anggaran — sentiasa rujuk julat rujukan makmal pada laporan anda, kerana ia berbeza sedikit antara makmal dan mengikut jantina.

Match each row of your result. The values below are approximate ranges — always refer to your lab's reference range on your report, as they vary slightly between labs and by sex.

UjianTest Julat Normal (Anggaran)Normal Range (Approx.) NotaNote
Kreatinin — LelakiCreatinine — Male60–110 µmol/L
(0.7–1.3 mg/dL)		Tinggi = penapisan kurang cekapHigh = less efficient filtering
Kreatinin — WanitaCreatinine — Female45–90 µmol/L
(0.6–1.1 mg/dL)		Tinggi = penapisan kurang cekapHigh = less efficient filtering
eGFR ⬆ (patut tinggi)(keep high)> 90 mL/min/1.73m²Semakin rendah = fungsi semakin menurunLower = declining function
Urea (BUN)Urea (BUN)2.5–7.1 mmol/LTinggi = fungsi menurun atau dehidrasiHigh = reduced function or dehydration

Peringkat eGFR — angka ini menentukan tahap fungsi buah pinggang:

eGFR stages — this number defines the level of kidney function:

eGFR > 90Normal — fungsi buah pinggang baikNormal — healthy kidney function
eGFR 60–89Penurunan ringan — pantau & kawal puncaMild decline — monitor & control causes
eGFR < 60
(≥ 3 bulan)		Penyakit Buah Pinggang Kronik (CKD) — perlu penilaian doktorChronic Kidney Disease (CKD) — needs a doctor's assessment
eGFR < 15Kegagalan buah pinggang — mungkin perlu dialisisKidney failure — dialysis may be needed

Cara baca: bagi kreatinin & urea — bacaan dalam julat normal adalah baik; bacaan tinggi menandakan buah pinggang kurang cekap menapis sisa. eGFR pula sebaliknya — lebih tinggi lebih baik. eGFR di bawah 60 selama 3 bulan atau lebih menandakan Penyakit Buah Pinggang Kronik (CKD). Satu bacaan tunggal boleh dipengaruhi dehidrasi atau makanan berprotein tinggi — doktor mungkin mengulang ujian untuk sahkan. Sentiasa rujuk julat rujukan makmal pada laporan anda.

How to read it: for creatinine & urea — a reading within the normal range is good; a high reading signals the kidneys are filtering waste less efficiently. eGFR is the opposite — higher is better. An eGFR below 60 for 3 months or more indicates Chronic Kidney Disease (CKD). A single reading can be affected by dehydration or a high-protein meal — your doctor may repeat the test to confirm. Always refer to your lab's reference range on your report.

Punca Fungsi Buah Pinggang Menurun

Causes of Declining Kidney Function

Buah pinggang menapis sisa dari darah setiap hari. Apabila fungsinya menurun, sisa mula berkumpul dan kreatinin naik. Punca yang paling biasa:

Your kidneys filter waste from the blood every day. When function declines, waste starts to build up and creatinine rises. The most common causes:

Yang paling penting difahami: kerosakan buah pinggang peringkat awal hampir selalu tanpa simptom. Anda mungkin rasa sihat sepenuhnya walaupun fungsi sudah menurun secara senyap — sebab itulah ia hanya dapat dikesan melalui ujian darah, bukan dengan menunggu rasa tidak sihat.

The most important thing to understand: early kidney damage is almost always symptom-free. You may feel perfectly well even as function quietly declines — which is exactly why it can only be caught through a blood test, not by waiting to feel unwell.

Bacaan Tak Normal — Apa Patut Buat?

Abnormal Reading — What to Do?

Bacaan fungsi buah pinggang di luar julat jarang bersendirian — ia sebahagian gambaran kesihatan yang lebih besar. Jangan panik; ini langkah seterusnya yang tenang dan teratur:

A kidney function reading outside the range rarely travels alone — it's part of a bigger health picture. Don't panic; here are the calm, orderly next steps:

Rujukan klinikal: National Kidney Foundation of Malaysia · National Kidney Foundation — eGFR · Mayo Clinic — Chronic Kidney Disease