Creatinine 7.1 → 0.9 in 2 Days: What Could Explain Such a Dramatic Change?
A creatinine level changing from 7.1 mg/dL to 0.9 mg/dL in only two days is possible, but it is not something to assume means the kidneys “healed” completely.
A creatinine of 7.1 mg/dL is extremely high for most adults and can occur with severe acute kidney injury, advanced kidney dysfunction, or occasionally a laboratory/specimen problem. A rapid fall can happen when the underlying cause of acute kidney injury is quickly reversed—for example, dehydration or another reversible problem—but the numbers need to be interpreted alongside urine output, electrolytes, blood pressure, medications, and the clinical situation.
If these are your actual results, contact the treating clinician promptly and ask why the change was so dramatic. The laboratory may also need to repeat the test to confirm the result.
What about “kidney-friendly fats”?
You don’t generally need to eliminate fat because of kidney disease. The type of fat matters.
Better choices include:
Olive oil
Canola oil
Other unsaturated vegetable oils
Appropriate portions of nuts, seeds, avocado, and fatty fish, depending on your potassium and phosphorus restrictions
The National Kidney Foundation and NIDDK recommend emphasizing unsaturated fats while limiting saturated and trans fats, particularly because people with kidney disease have increased cardiovascular risk.
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National Kidney Foundation
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However, there is no single kidney diet that fits everyone. Potassium, phosphorus, protein, fluid, and sodium requirements depend on kidney function, laboratory results, medications, and whether someone is on dialysis.
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National Kidney Foundation
Most important: Don’t try to lower a creatinine of 7.1 with a particular oil, drink, or home remedy. A value that high requires medical evaluation, even if a subsequent result is 0.9.
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