Renat Function Test (Creatinine)

Understanding kidney function and its vital roles in the body?
   The kidneys are vital internal organs in the human body. They play a crucial role in excretion and maintaining water balance. Beyond this, the kidneys are involved in other systems such as the circulatory system, maintaining mineral and acid-base balance, and producing several hormones.

kidney function
  The process begins with the circulatory system sending deoxygenated blood to the kidneys. The kidneys then filter waste and toxins from the blood, expelling them as urine. In addition to waste products, the kidneys also eliminate excess water and minerals, and maintain the acid-base balance to ensure the body plays an optimal internal environment for cell function. Furthermore, the kidneys have other roles, such as producing certain hormones to stimulate red blood cell production and regulating blood pressure within normal limits.

Renal Function Test
  This involves checking the waste products eliminated by the kidneys through current functions, such as urine tests and blood tests to assess kidney function. This checks for urea leakage into the bloodstream to determine if it's directly due to kidney dysfunction. Therefore, standard blood tests to assess kidney function are available to provide a more accurate diagnosis of kidney health. These tests include BUN, creatinine, and eGFR.

What does creatinine mean?
  Creatinine is a waste product resulting from the breakdown of creatinine in muscles. It is present in the bloodstream, and the kidneys filter it out, excreting it in urine. Measuring blood creatinine levels can indicate kidney function. Higher than normal creatinine levels may indicate decreased kidney function, meaning the kidneys are not efficiently filtering creatinine from the blood.

  Creatinine levels can be inaccurate due to several factors, including gender, age, muscle mass, high meat consumption, and the use of certain medications. Therefore, creatinine levels alone cannot be used to assess kidney function; they should be considered in conjunction with other parameters for a more accurate diagnosis.

Who should have their kidney function checked?
  - Individuals aged 60 years and older.
  - Individuals with a BMI higher than the standard.
  - Individuals who have had a cardiac examination and received a diagnosis of abnormally high or low blood pressure.
  - Taking medications containing certain herbal ingredients that may damage kidney tissue.
  - Physical symptoms such as swelling in the face, body, and feet.
  - Individuals with a history of excessive substance abuse, such as smoking.
  - A family history of hereditary chronic kidney disease, such as polycystic kidney disease.
  - Frequent urination and blood or foam in the urine.
  - Dizziness, fatigue, and easy tiredness leading to nausea and vomiting.
  - Pre-existing medical conditions such as diabetes.

Normal creatinine levels differ between genders, as follows:
  - Normal creatinine levels for women: 0.5-1.0 mg/dL
  - Normal creatinine levels for men: 0.7-1.2 mg/dL

How to collect a blood sample
   Draw 3 ml of blood from a vein in the elbow crease and collect it in a clot blood tube. Interpret the results; results will be available within 1 day.