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KFT Test (Kidney Function Test)

Name: KFT Test (Kidney Function Test)
Creator: Dr. Shadab Khan

Kidney Function Test / Renal Function Test · Gurde Ki Jaanch

KFT ya Kidney Function Test ek blood test panel hai jo aapke gurdono (kidneys) ki sehat ka poora jaayza leta hai — ye check karta hai ki aapke kidneys khoon se waste sahi se saf kar rahe hain ya nahi. KFT ka full form hai Kidney Function Test. Ise Renal Function Test (RFT) bhi kehte hain — dono ek hi test ke naam hain. Is test mein koi ek parameter nahi dekha jaata — balki ek saath kaafi saare important markers check hote hain: Serum Creatinine, Blood Urea Nitrogen (BUN), Uric Acid, eGFR (estimated Glomerular Filtration Rate), aur electrolytes jaise Sodium (Na), Potassium (K), aur Chloride (Cl). Socho kidneys ek advanced filter ki tarah hain — roz lagbhag 180 litre khoon saaf karti hain, waste baar baar nahi chhor ti. Jab ye filter theek se kaam nahi karta, toh waste products khoon mein barhne lagte hain — aur KFT yahi pakad leta hai. India mein chronic kidney disease (CKD) ka bahut zyada prasar ho raha hai — diabetes aur high blood pressure iske sabse bade kaaran hain. Isliye ye test aaj ke daur mein sirf bimaar logon ke liye nahi — balki 40 saal ke baad sabke liye ek zaroori routine check hai.

Test Details

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Sample

Blood (vein se) — mainly; kuch cases mein 24-hour urine ya spot urine bhi

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Fasting

Not needed

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Report

Same day 4–6 ghante mein; comprehensive panels mein next day

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Amount

Lagbhag 3–5 mL blood — ek chhoti si tube

💬 Report doctor ko dikhayein

Overview

Ye test kab aur kyun karwayein?

Diabetes hai (Type 1 ya Type 2) — kidney damage ka sabse bada risk

High blood pressure (hypertension) hai — kidneys ki blood vessels pe seedha asar

Pair, chehra, ya haath mein sujan aayi hai — kidney ka waste retain karne ka sign

Peshab mein jhag, khoon, ya badbu aayi ho

Baar baar UTI (peshab mein jalan / infection) ho

Peetha mein ya kamar ke dono taraf dard ho

Bahut thakan aur kamzori feel ho

Bhookh na lage, ulti jaisi feeling ho

Koi surgery hone wali ho — doctor organs ka baseline check karta hai

Koi nefrotoxic dawai chal rahi ho — jaise painkillers, antibiotics

Diabetes ya BP ki ongoing treatment mein routine monitoring

Family mein kidney disease ka itihaas ho

General health checkup ke part ke taur pe — 40+ saal ke baad

Is test se kya pata chalta hai?

Is test se pata chalta hai ki kidneys waste kitni efficiently saaf kar rahi hain. Khoon mein creatinine ya urea ka zaroori se zyada hona early kidney damage ka signal hai. eGFR se kidney ki actual working capacity ka andaaza lagta hai. Electrolyte balance — heart aur muscles ke liye zaroori — bhi check hota hai. Uric acid badha hua ho toh gout ya kidney stones ka risk dikhta hai. Chronic Kidney Disease ki stage samajhna, Kidney Stones se related status, aur UTI aur infections ka kidney pe asar — sab is ek panel se pata chalta hai.

⭐ Most important

Normal range — category wise

Category	Normal Range	Unit	High → meaning	Low → meaning
Serum Creatinine (Purush / Male)	0.74 – 1.35	mg/dL	Kidney problem / Dehydration	Muscle loss / Malnutrition
Serum Creatinine (Mahila / Female)	0.59 – 1.04	mg/dL	Kidney damage / Dehydration	Malnutrition / Long illness
Blood Urea Nitrogen (BUN)	7 – 20	mg/dL	Kidney dysfunction / High protein diet	Liver disease / Malnutrition
BUN:Creatinine Ratio	10:1 – 20:1	ratio	Dehydration / Obstruction	Liver issues / Low protein
Uric Acid (Purush / Male)	3.4 – 7.0	mg/dL	Gout / Kidney stones	Rare — liver issues
Uric Acid (Mahila / Female)	2.4 – 6.0	mg/dL	Gout / Kidney disease	Rare
eGFR (Kidney filtration rate)	90 ya upar	mL/min/1.73m²	— (eGFR neeche hi problem hoti hai)	CKD / Kidney disease
eGFR (Pregnancy mein)	120 – 180	mL/min/1.73m²	— (physiological increase — normal)	Preeclampsia risk
Sodium (Na)	135 – 145	mmol/L	Dehydration / Kidney issue	Low sodium / Fluid excess
Potassium (K)	3.5 – 5.0	mmol/L	Kidney failure / Medicines	Diarrhea / Vomiting
Chloride (Cl)	96 – 106	mEq/L	Dehydration / Metabolic issue	Kidney / Metabolic problem
Serum Calcium	8.5 – 10.5	mg/dL	Hyperparathyroidism / Cancer	CKD / Vitamin D deficiency
Phosphorus	2.5 – 4.5	mg/dL	CKD / Hypoparathyroid	Malnutrition / Vitamin D deficiency
Children Creatinine (3–12 yr)	0.3 – 0.7	mg/dL	Kidney problem	Muscle underdevelopment
Children BUN (1–17 yr)	7 – 20	mg/dL	Kidney / Dehydration	Malnutrition

🤰 Pregnancy mein

Normal range: Creatinine: 0.4–0.8 mg/dL (non-pregnant se kam); eGFR: 120–180 mL/min/1.73m²

Pregnancy mein kidneys pe kaam ka bojh naturally badh jaata hai. Glomerular filtration rate lagbhag 50% badh jaati hai — isliye creatinine aur urea ka level thoda naturally kam hota hai, jo normal hai. Agar creatinine ya protein badha hua aaye toh ghabrao mat — turant doctor se consult karo. Preeclampsia (high BP + protein in urine) ek serious condition hai jo samay pe pakdi jaaye toh manage ho sakti hai. eGFR badha hona pregnancy mein normal physiological change hai.

Doctor ko kab dikhaye: Doctor pregnancy mein KFT likhta hai jab: preeclampsia ka doubt ho, pehle se kidney disease ya diabetes ho, haath-pair mein zyada sujan ho, peshab mein protein detect ho, ya routine antenatal checkup ke part mein.

High / Low explained

Result ka matlab?

↑ Value HIGH hai to?

Creatinine HIGH — Acute ya Chronic Kidney Disease (CKD): kidneys ki filtration kam ho gayi

Creatinine HIGH — Dehydration: body mein paani ki kami se waste concentrate ho jaata hai

Creatinine HIGH — High protein diet ya intense exercise se temporarily upar aa sakta hai

Creatinine HIGH — Diabetes se kidney damage (Diabetic Nephropathy)

Creatinine HIGH — High blood pressure se kidney pe asar

Creatinine HIGH — NSAIDs (painkillers) ya kuch antibiotics ka zaroori se zyada use

Creatinine HIGH — Urinary tract obstruction: kidney stone ya bada prostate

BUN HIGH — Kidney dysfunction (sabse common), zyada protein khana, dehydration

BUN HIGH — Gastrointestinal bleeding ya kuch heart/BP medicines

Uric Acid HIGH — Gout: jadon mein uric acid crystals

Uric Acid HIGH — Kidney stones (uric acid type), high purine diet (red meat, seafood)

eGFR LOW — CKD stages 1–5, Acute kidney injury, Diabetes/BP complications

Ghabrao mat — ek abnormal value se diagnosis nahi hoti. Creatinine temporarily dehydration, heavy exercise, ya zyada protein khane se badh sakta hai. Doctor typically ek se zyada tests karke trend dekhte hain. Lekin doctor se zaroor milein aur apni purani reports saath lekar jao.

↓ Value LOW hai to?

Creatinine LOW — Muscle mass kam hona: elderly, bedridden patients, long illness mein hota hai

Creatinine LOW — Malnutrition ya protein deficiency

Creatinine LOW — Pregnancy mein naturally thoda kam hona: bilkul normal hai

BUN LOW — Liver ki problem: BUN liver mein banta hai; liver weak ho toh BUN kam hoga

BUN LOW — Bahut kam protein khana ya excess IV fluids

Potassium LOW (Hypokalemia) — Baar baar dast ya ulti; diuretic medicines (water pills)

Sodium LOW (Hyponatremia) — Bahut zyada paani peena, heart/kidney/liver ki problem

Low values ko bhi ignore mat karo. Potassium 3.0 se neeche aaye toh muscle weakness aur heart problem ka risk hota hai — turant doctor ko dikhao. Sodium 125 se neeche — emergency ho sakti hai. Sirf doctor hi context ke hisaab se bata sakta hai kya normal hai aapke liye.

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Doctor ko turant dikhayein — emergency signs

→ Creatinine 2.0 mg/dL se zyada

→ eGFR 30 se neeche aaye

→ Potassium 5.5 ya upar (hyperkalemia — heart risk: arrhythmia)

→ Potassium 3.0 se neeche (muscle weakness, irregular heartbeat)

→ Sodium 125 se neeche ya 155 se upar — emergency

→ Urine bilkul band ho jaaye ya bahut kam ho (oliguria/anuria)

→ Zyada sujan — chehra, pair, haath ek saath

→ Saas lene mein takleef + sujan ka combination

→ Pregnancy mein BP badha ho + report mein protein ho

→ Haath-pair mein zyada jhunjhunahat

→ Bahut thakan jo kisi baat se theek na ho

→ Peshab ka rang bahut dark ya khoon wala ho

→ Seene mein dard + kidney values abnormal hoon

Potassium 5.5+ ya Sodium 125 se neeche — ye emergency hain, seedha hospital jaao. Creatinine 2.0+ ya eGFR 30 se neeche — same day doctor visit zaroori. Urine bilkul band ho jaaye — immediate emergency room.

⭐ Before you go

Test ki taiyari — best time & tips

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Fasting

Fasting required nahi

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Best Time

Subah ka samay best hai — body overnight rested aur consistently hydrated hoti hai

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Kya Khayein

Zyaadatar KFT ke liye strict fasting zaroori nahi — aap khana khake bhi de sakte hain. Lekin agar saath mein glucose ya lipid test bhi ho toh khali pet rehna padega. Apni lab ya doctor se pehle confirm karo.

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Kya Avoid Karein

Test se ek din pehle: heavy exercise avoid karo (creatinine temporarily badhata hai), zyada red meat ya high protein khana avoid karo raat ke bhojan mein.

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Medicines

Koi bhi dawai khud band mat karo bina doctor se puchhe. Kuch medicines (NSAIDs, kuch antibiotics, ACE inhibitors) result affect kar sakti hain — doctor bata denge kya karna hai.

💡 Paani poora peena ZAROOR hai — dehydration se creatinine temporarily badh sakta hai aur galat result aa sakta hai. Same conditions mein test repeat karna better comparison deta hai.

🚫 Bust the myth

Common myths & sach kya hai?

MYTH

KFT ke liye hamesha khali pet rehna zaroori hai

FACT

KFT ke liye strict fasting necessary nahi hai. Zyaadatar cases mein khana khake bhi test ho sakta hai. Haan, agar saath mein glucose ya lipid test bhi hona ho toh doctor khali pet bolte hain. Apni lab se confirm karo.

MYTH

Creatinine thoda bhi badha matlab kidneys kharab ho gayi

FACT

Creatinine temporarily badh sakta hai dehydration, heavy exercise, ya zyada meat khane se — iska matlab hamesha kidney disease nahi. Doctor typically ek se zyada tests karke trend dekhte hain. Ghabrao mat — doctor se consult karo.

MYTH

KFT bahut painful test hai

FACT

Sirf ek chhoti needle se 2–3 mL blood liya jaata hai — 2–3 second ka process. Zyaadatar log ise bilkul sehta lete hain. Blood lene ke baad rui rakho — koi aur taklif nahi.

MYTH

Uric acid badha matlab zaroor gout hai

FACT

High uric acid se gout HO SAKTA hai — lekin zaroori nahi. Bahut log high uric acid ke saath bina gout ke jeete hain. Doctor symptoms aur uric acid level dono milaakar decide karta hai treatment ka.

MYTH

Kidneys ek baar kharab ho gayi toh theek nahi honti

FACT

Acute kidney injury mein kidneys recover kar sakti hain agar sahi treatment mile. Chronic kidney disease mein progress rok a ja sakta hai — especially diabetes aur BP control karo toh. Early detection se bahut kuch theek hota hai.

MYTH

KFT normal hai toh kidneys 100% theek hain

FACT

KFT early-to-mid stage kidney disease pakad leta hai, lekin bahut early damage ke liye urine protein test (microalbuminuria) zyada sensitive hota hai. Dono milaakar zyada complete picture milti hai.

Comparison

Dusre tests se kya fark hai?

Parameter	KFT Test (Kidney Function Test)	RFT (Renal Function Test)
KFT aur RFT practically ek hi test hain — alag labs alag naam use karti hain	RFT mein bhi wohi parameters hote hain: Creatinine, BUN, eGFR, Electrolytes	Dono ka cost aur process same hota hai

Parameter	KFT Test (Kidney Function Test)	Sirf Creatinine Test (Serum Creatinine)
Creatinine test sirf ek parameter check karta hai	KFT mein 8–12 complete markers hote hain	Quick screening ke liye creatinine, detailed evaluation ke liye KFT

Parameter	KFT Test (Kidney Function Test)	Urine Routine & Microscopy
KFT blood mein waste levels check karta hai	Urine Routine mein protein, cells, sugar check hoti hai	Early kidney damage ke liye Urine Routine zyada sensitive; mid-to-late stage ke liye KFT

View Urine Routine & Microscopy guide →

Follow-up

Repeat kab karwayein?

Diabetes mein: har 3–6 mahine — diabetes kidney ko silently damage karta hai. High BP mein: har 6–12 mahine — BP meds ka asar bhi monitor karna hota hai. CKD diagnosis ke baad: doctor ke schedule ke hisaab se — har 1–3 mahine bhi ho sakta hai. Nephrotoxic medicines chal rahi hon: har 2–4 hafte. Surgery ke baad: 2–4 hafte mein follow-up. Normal result (no risk factors): 40–50 saal mein har saal ek baar. 50+ saal ke baad: har 6 mahine. Treatment shuru karne ke baad: usually 4–8 hafte baad repeat hota hai.

Related conditions

Yeh test kin bimariyon mein hota hai?

🩺 Kidney Stone 🩺 Recurrent UTI 🩺 Gout 🩺 Pre-Diabetes / Diabetes 🩺 Fatty Liver

Related Symptoms

🔎 Weakness & Fatigue 🔎 Burning Urination 🔎 Muscle Cramps

Diet Charts

🥗 Kidney Stone Diet 🥗 Gout Diet 🥗 Recurrent UTI Diet 🥗 Diabetes Diet

Related tests

🔬 CBC (Complete Blood Count)🔬 HbA1c 🔬 Blood Sugar (FBS/RBS/PPBS)🔬 Lipid Profile 🔬 Vitamin D🔬 LFT (Liver Function Test) Soon🔬 Urine Routine & Microscopy Soon🔬 Microalbuminuria Test Soon

Treatment angle

Homeopathy mein kya?

Conventional treatment KFT numbers manage karta hai — symptoms control, medicines, dialysis planning. Homeopathy ka approach hai underlying cause address karna — woh constitution jo baar baar kidney mein problem create karta hai. Agar KFT baar baar abnormal aaye, ya kidney function slowly decline ho raha ho, toh sirf numbers treat karna kaafi nahi. Dr. Shadab Khan ka approach individualized hai — aapki poori health history, lifestyle, aur constitution dekhkar treatment decide hota hai. Homeopathy CKD mein progression rok sakti hai aur quality of life improve kar sakti hai, side effects practically nil ke saath. Apni report lekar consult karein.

18 sawaal

Frequently Asked Questions

KFT test kya hota hai?

KFT ya Kidney Function Test ek blood test panel hai jo kidneys ki filtration capacity, waste products (creatinine, urea, uric acid), aur electrolytes (sodium, potassium) check karta hai. Isse pata chalta hai kidneys sahi kaam kar rahi hain ya nahi.

KFT aur RFT mein kya fark hai?

Practically koi fark nahi — dono ek hi test hain. Alag labs alag naam use karti hain. Kuch labs "Renal Function Test (RFT)" likhti hain, kuch "Kidney Function Test (KFT)" ya "Kidney Panel."

KFT test ka normal range kya hai?

Creatinine: Male 0.74–1.35 mg/dL, Female 0.59–1.04 mg/dL. BUN: 7–20 mg/dL. eGFR: 90 ya upar. Uric acid: Male 3.4–7.0, Female 2.4–6.0 mg/dL. Sodium: 135–145 mmol/L. Potassium: 3.5–5.0 mmol/L. Complete table upar dekho.

KFT test ke liye khali pet rehna zaroori hai kya?

Zyaadatar KFT ke liye strict fasting zaroori nahi. Lekin agar saath mein glucose ya lipid test bhi ho toh khali pet rehna padta hai. Apni lab ya doctor se pehle confirm karo.

KFT mein creatinine high hai — kya kidney kharab ho gayi?

Zaroor nahi. Creatinine temporarily dehydration, heavy exercise, ya zyada protein khane se badh sakta hai. Doctor trend dekhte hain — ek reading se diagnosis nahi hoti. Ghabrao mat — doctor se milein.

KFT test kab karwana chahiye?

Diabetes ya BP hai toh har 3–6 mahine. 40+ saal ke baad har saal ek baar routine mein. Sujan, peshab mein problem, thakan ya kamar mein dard ho toh turant.

KFT test blood se hota hai ya urine se?

Mainly blood test hai — vein se chhota sa sample. Kuch specific cases mein doctor urine test (24-hour urine ya spot urine) bhi likhte hain — especially protein dekhne ke liye.

KFT mein eGFR kya hota hai?

eGFR (Estimated Glomerular Filtration Rate) batata hai ki kidneys kitna blood per minute filter kar rahi hain. 90 ya upar normal hai. 60–89 mild reduction, 30–59 moderate CKD, 15–29 severe CKD, 15 se neeche kidney failure ki stage.

Pregnancy mein KFT ki normal range alag hoti hai kya?

Haan — pregnancy mein creatinine naturally kam hoti hai (0.4–0.8 mg/dL range), kyunki kidneys zyada tezi se kaam karti hain. eGFR bhi badha hota hai (120–180). Pregnancy ke liye specific reference ranges apply hoti hain.

KFT mein uric acid high hai — kya gout hai?

High uric acid GOUT KA RISK badhata hai — lekin zaroor nahi ki gout ho. Bahut log high uric acid ke saath bina symptoms ke hote hain. Doctor symptoms, family history, aur uric acid level milaakar decide karta hai.

KFT test kitne time mein aata hai?

Zyaadatar labs mein same day — 4–6 ghante mein. Kuch comprehensive panels mein next day. Major chain labs (Lal PathLabs, Metropolis, Thyrocare) pe online report app ya email se milti hai.

KFT test ke liye kya preparation karein?

Paani poora peena zaroori hai — dehydration avoid karo. Test se ek din pehle heavy exercise aur zyada red meat avoid karo. Koi bhi dawai band mat karo bina doctor se puchhe.

KFT mein potassium high ho toh kya karna chahiye?

Potassium 5.5 se upar ho toh turant doctor se milein — ye heart ke liye dangerous ho sakta hai (arrhythmia). Khud koi supplement ya diet change mat karo.

Kya KFT se cancer pata chalta hai?

KFT specifically cancer diagnose nahi karta. Lekin kuch cancers ya cancer ki medicines kidney function affect karti hain — jo KFT mein dikhta hai. Cancer ke liye alag specific tests hote hain.

Kitne baar KFT repeat karna chahiye?

Risk factors ke hisaab se alag alag. Diabetes ya CKD mein har 3–6 mahine. No risk factors, 40+ saal ke baad har saal ek baar. Doctor follow-up schedule bata denge.

Kya KFT se kidney stone pata chalta hai?

KFT directly stone nahi dikhata — uske liye ultrasound ya CT scan hota hai. Lekin KFT mein uric acid aur calcium levels stone ka risk batate hain. Dono milaakar complete picture milti hai.

Best time of day KFT ke liye?

Subah ka samay best hai — body overnight rested aur consistently hydrated hoti hai. Koi bhi alag diet ya activity nahi hoti subah, isliye results zyada accurate hote hain.

KFT test kitne saal se karwana chahiye?

40 saal ke baad routine mein. Lekin diabetes, high BP, family history ya symptoms ho toh kisi bhi umar mein zaroor karwao.

Disclaimer

"Ye jaankari educational purpose ke liye hai. Lab report apne doctor ko dikhayein aur unki salah ke bina koi medicine na lein."

— Dr. Shadab Khan (MD Homoeopath) · May 2026

Report explained

Report dekhi nahi samajh aayi?

Dr. Shadab ko WhatsApp pe bhejein — interpretation aur next steps milenge.

💬 Doctor ko bhejein

⚠ Warning

REPORT DEKHKAR KHUD TREATMENT MAT SHURU KARO. Koi bhi painkiller, supplement, ya diet change doctor se puchhe bina mat karo — kuch medicines kidney ke liye aur bhi nuksaandeh hoti hain. Ek report se ghabrao mat — trend dekhna zaroori hota hai.

References: Boericke, Allen · Lab Tests Online (NIH) · ICMR guidelines · Dr. Shadab Khan's 15+ yrs clinical practice.

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