Creatinine Clearance Calculator

By using the Cockcroft–Gault Creatinine Clearance equation

For Adults & clinical education
Estimated CrCl (mL/min)
Free Creatinine Clearance Calculator
Creatinine Clearance
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Creatinine Clearance – FAQ

1. What is creatinine clearance?
Creatinine clearance (CrCl) is an estimate of how effectively your kidneys filter creatinine from your bloodstream. It reflects kidney filtration capacity in mL/min.
2. How is creatinine clearance calculated?
It can be measured using a 24-hour urine test or estimated using formulas such as the Cockcroft–Gault equation, which uses age, weight, sex, and serum creatinine.
3. What is a normal creatinine clearance?
Typically, CrCl ≥ 90 mL/min is considered normal. Values between 60–89 indicate mild kidney impairment, and lower values indicate progressively reduced kidney function.
4. Why is creatinine clearance important?
It helps clinicians assess kidney health, stage kidney disease, and adjust medication doses for drugs eliminated through the kidneys.
5. Is creatinine clearance the same as eGFR?
No. Creatinine clearance estimates kidney filtration based on creatinine removal, while eGFR (like CKD-EPI) uses mathematical models based on serum creatinine, age, and sex.

Disclaimer: The Creatinine Clearance Calculator is for educational use only. Please read full disclaimer, Terms and condition, privacy policy.

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Reference: Donald W. Cockcroft, Henry Gault; Prediction of Creatinine Clearance from Serum Creatinine. Nephron 1 January 1976; 16 (1): 31–41

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Physical Medicine & Rehabilitation
FAQs

What is Physical Medicine and Rehabilitation?

Physical Medicine and Rehabilitation (PM&R), also known as physiatry, is an allopathic medical specialty that involves restoring function for a person who has been disabled by disease, disorder, or injury. It provides integrated, multidisciplinary care addressing physical, emotional, medical, vocational, and social needs.

Who is a “Physiatrist”?

A physiatrist is a physician specializing in physical medicine and rehabilitation. (In India: MBBS followed by MD/DNB in PMR.)

What is Rehabilitation?

Rehabilitation is the process of helping a person achieve the highest level of function, independence, and quality of life possible. It does not undo damage but restores optimal health, functioning, and well-being.

Is PM&R only for people with disabilities?

No. PM&R serves anyone experiencing a decline in physical function—from athletes with injuries to elderly individuals recovering from surgery, falls, or pain.

Can physiatrists perform surgery?

Yes. In India, physiatrists perform rehabilitation surgeries such as deformity corrections, tendon transfers, and revision of amputations.

How does PM&R help in managing chronic pain?

Physiatrists use a multimodal approach—evaluation, diagnosis, medication, therapy, injections (e.g., nerve blocks, trigger point/joint injections), and lifestyle modifications—to reduce pain and improve daily function.

What conditions do physiatrists treat?

Common conditions include stroke, spinal cord injuries, traumatic brain injury, cerebral palsy, amputations, sports injuries, chronic musculoskeletal pain, post-surgical rehabilitation, osteoarthritis, osteoporosis, and more.

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