During the summer months, our bodies lose significantly more fluid due to increased sweating than at other times of the year. However, many people only drink when they feel thirsty, even though thirst is often a late sign of dehydration.
Mild but persistent dehydration can put additional strain on the kidneys over time, particularly in older adults, people who exercise regularly, or those taking certain medications. Since impaired kidney function often causes no noticeable symptoms in its early stages, laboratory testing can play an important role in its early detection.
When the body is consistently deprived of adequate fluids, the kidneys produce more concentrated urine in an effort to conserve water. Over time, this may increase the risk of kidney stone formation and place additional strain on the kidneys. As early kidney impairment can remain asymptomatic, regular monitoring of kidney function is particularly important for people with high blood pressure or diabetes, those who engage in intensive physical activity, and those who take painkillers or other medications on a long-term basis.
Among laboratory tests, creatinine, urea and eGFR are key indicators of kidney function, while Cystatin C can provide a sensitive indication of declining kidney function, including at an early stage. A complete urinalysis and the urine protein-to-creatinine ratio can also provide valuable information about kidney health. Regular laboratory testing makes it possible to detect potential abnormalities before symptoms appear, allowing appropriate lifestyle changes or medical intervention to be initiated in good time. Visit our laboratory and have your kidney function checked!
Frequently Asked Questions
Is it enough to drink only when I feel thirsty?
Not necessarily. Thirst can be a relatively late indication that the body is already experiencing a degree of fluid deficiency.
What does the eGFR value indicate?
eGFR estimates the kidneys’ filtration capacity and is one of the key indicators used to assess kidney function.
Why is Cystatin C testing useful?
In certain situations, Cystatin C may indicate a decline in kidney function earlier than creatinine, making it a useful additional marker.
Who should have their kidney function checked regularly?
Regular monitoring may be particularly beneficial for people with high blood pressure or diabetes, those who engage in intensive physical activity, and those taking certain medications, including painkillers, on a long-term basis.