Kidney Health: Tests and Prevention for Working Adults
The kidneys filter waste and extra fluid from the blood, help control blood pressure, balance minerals and support red blood cell production. They are also remarkably good at coping quietly when something goes wrong, which is why kidney disease is often discovered late.
Looking after kidney health comes down to two things: knowing your numbers through simple tests, and controlling the conditions that most often damage the kidneys. This guide explains both. It is general information; your doctor will interpret your own results.
Why kidney health is easy to overlook
Chronic kidney disease (CKD) develops gradually. In its early stages there are usually no symptoms. By the time people notice swelling in the legs, tiredness, changes in urination or breathlessness, a significant amount of kidney function may already be lost.
The two most common causes of CKD worldwide are diabetes and high blood pressure, both of which are widespread among working adults in India. That makes kidney checks an important part of preventive care.
Key tests for kidney health
| Test | What it measures | Why it matters |
|---|---|---|
| Serum creatinine | A waste product from muscle, filtered by the kidneys | Rises when kidney filtering falls |
| eGFR (estimated glomerular filtration rate) | Calculated from creatinine, age and sex | Estimates how well the kidneys filter |
| Urine albumin-to-creatinine ratio (UACR) | Small amounts of protein leaking into urine | An early sign of kidney damage, especially in diabetes |
| Urine routine examination | Protein, blood, sugar, cells in urine | Screens for several kidney and urinary problems |
| Blood urea / BUN | Another waste product | Adds context, affected by diet and hydration |
| Uric acid | A breakdown product of purines | Linked to gout and kidney stones |
| Electrolytes (sodium, potassium) | Mineral balance | Can be affected by kidney function and medicines |
Understanding eGFR
eGFR is usually reported in mL/min/1.73m². As a broad guide used by international kidney guidelines, an eGFR of 60 or above is generally considered normal or near-normal, though it naturally declines with age. An eGFR below 60 that lasts for three months or more is one of the criteria for chronic kidney disease. Kidney damage can also be present with a normal eGFR, which is why urine tests matter too.
Reference ranges and reporting formats vary between labs, so always check the range printed on your report.
Why urine albumin is worth asking about
A basic urine routine test may miss small amounts of protein. The urine albumin-to-creatinine ratio is more sensitive and is commonly recommended for people with diabetes or high blood pressure. Finding protein leakage early gives a chance to act before function declines.
Who should get kidney tests?
Doctors commonly recommend regular kidney checks for people who have:
- Diabetes
- High blood pressure
- Heart disease
- A family history of kidney disease
- Obesity
- A history of kidney stones
- Long-term use of medicines that can affect the kidneys
Including creatinine, eGFR and a urine test in annual health checkups is a simple way to cover most working adults.
Things that can affect results
- Dehydration can raise creatinine and urea temporarily
- Intense exercise before the test can raise creatinine
- High muscle mass may mean higher creatinine without kidney disease
- Recent large meat meals can affect creatinine
- Some medicines influence creatinine or kidney function
- Urinary infection or menstruation can affect urine results
Everyday habits that protect kidney health
- Control blood pressure. Know your numbers and follow your doctor's advice.
- Manage blood sugar. Good diabetes control protects the small blood vessels in the kidneys.
- Be careful with painkillers. Frequent, long-term use of some over-the-counter painkillers can harm the kidneys. Ask a doctor before using them regularly.
- Reduce salt. Watch for hidden salt in pickles, papads, namkeen, packaged foods and restaurant meals.
- Stay hydrated, particularly in hot weather and for outdoor or physically demanding roles.
- Be cautious with supplements. Some herbal and bodybuilding products may affect the kidneys.
- Don't smoke, and stay active.
- Maintain a healthy weight.
What employers can do
- Include creatinine, eGFR and urine tests in annual checkups, with urine albumin for employees with diabetes or high blood pressure where a doctor recommends it
- Ensure doctor follow-up for abnormal results
- Support employees with diabetes and hypertension programs, since controlling these protects the kidneys
- Provide drinking water and rest breaks, especially for field, factory and outdoor workers in hot conditions
- Run awareness sessions on painkiller use, salt and hydration
When to see a doctor promptly
Seek medical advice if you notice swelling in the legs, ankles or face, foamy or bloody urine, a big change in how much you urinate, persistent tiredness, or breathlessness.
How MeWeSalus Care can help
MeWeSalus Care's chronic care management programs help employees manage diabetes and blood pressure, the leading drivers of kidney disease, and our corporate health checkups can include kidney function tests with doctor review. To discuss kidney health screening for your teams, contact us.
Frequently Asked Questions
Does drinking more water protect the kidneys?
Staying well hydrated is generally good for health and can help prevent kidney stones, especially in hot conditions. However, drinking very large amounts is not a treatment for kidney disease, and some people with kidney or heart conditions are advised to limit fluids.
Can a single high creatinine result mean kidney disease?
Not on its own. Creatinine can rise temporarily with dehydration, intense exercise, high meat intake or some medicines. Doctors usually confirm with repeat tests and look at urine results before drawing conclusions.
Are protein supplements bad for the kidneys?
For most healthy people, moderate protein intake is not considered harmful. People with existing kidney disease may need to limit protein. Anyone using supplements regularly should mention them to their doctor.
This article is for general information only and is not medical, legal or financial advice. Please consult a qualified professional about your specific situation.