Question 1

Purpose Test

Accepted Answer

Evaluating overall kidney function and detecting the presence of acute or chronic renal insufficiency. Calculating the estimated glomerular filtration rate (eGFR), which is a numerical indicator of the kidneys' efficiency in filtering the blood. Monitoring known renal failure patients and assessing the progression of their condition or their response to treatment (such as dialysis). Evaluating kidney function before conducting tests that require injecting contrast agents (such as dyes in CT scans) that may harm the kidneys if they are weak.

Question 2

Recommended groups

Accepted Answer

All individuals as part of a comprehensive routine health check-up. Patients with diseases that may affect the kidneys, such as diabetes and high blood pressure. Elderly individuals, as kidney function decreases with age. Patients taking medications that may be toxic to the kidneys (such as certain antibiotics, NSAIDs). Before and after major surgeries.

Question 3

Symptoms indicative

Accepted Answer

Swelling in the face, feet, or hands (edema). Changes in the amount or color of urine. Persistent fatigue and general weakness. Loss of appetite, nausea, or itching of the skin. Shortness of breath.

Question 4

Frequently Asked Questions (FAQs)

Accepted Answer

What is the normal level of creatinine? It varies based on age, sex, and muscle mass: • Adult men: 0.7 - 1.3 mg/dL or 62 - 115 µmol/L. • Adult women: 0.6 - 1.1 mg/dL or 53 - 97 µmol/L. • Elderly: May be lower due to decreased muscle mass. What is the Glomerular Filtration Rate (GFR) and how is it related to creatinine? GFR is the volume of blood filtered by the kidneys per minute. Creatinine is the primary indicator used to calculate it. Equations (such as CKD-EPI) that include creatinine, age, and sex are used to calculate eGFR. • Normal eGFR: 90 mL/min/1.73 m² or higher. • Low eGFR: Indicates impaired kidney function. Can creatinine be high without kidney disease? Yes, in cases of: Increased muscle mass (such as in athletes). Very high protein intake (especially red meat). Severe dehydration. Taking certain supplements (like creatine). Some medications (like trimethoprim, cimetidine). In these cases, the kidneys are healthy but the creatinine load on them is elevated. Increased muscle mass (such as in athletes). Very high protein intake (especially red meat). Severe dehydration. Taking certain supplements (like creatine). Some medications (like trimethoprim, cimetidine). In these cases, the kidneys are healthy but the creatinine load on them is elevated.

Question 5

Normal Levels

Accepted Answer

Normal creatinine typically indicates normal kidney function (but does not rule out very early kidney disease) Elevated creatinine indicates a decline in the glomerular filtration rate (GFR), and thus impaired kidney function. Further investigation is needed Decreased creatinine less common, may occur with reduced muscle mass (wasting, aging) or severe liver diseases

Monitor Your Kidney Function - Serum Creatinine Test