Kidney Health Screen

The Serum Calcium test measures the levels of calcium in the body. Calcium is the most abundant mineral in the body; most of it is present in the bones and teeth, and the remaining portion (around 1%) is found in the blood. It is usually present in two forms in blood in about equal amounts: "bound calcium," which is attached to proteins in the blood, and "free calcium or ionized calcium," which is not attached to any protein. 

The Serum Calcium test cannot be used to check for lack of calcium in your diet or osteoporosis (loss of calcium from bones) as the body can have normal calcium levels even in dietary calcium deficiency. Moreover, the body can normalize mild calcium deficiency by releasing the calcium stored in bones.

The Serum Creatinine test measures the level of creatinine in the blood. Creatinine is a byproduct of muscles’ wear and tear during energy production. The kidneys remove it from the body by filtering it from the blood and releasing it into the urine. Therefore, blood creatinine levels indicate how well the kidneys are functioning in filtering and removing waste products from the blood. Generally, higher creatinine levels in the blood may indicate reduced kidney function, while lower levels may suggest decreased muscle mass.

An Uric Acid test determines the level of uric acid in your body. Uric acid is a nitrogenous compound produced by the metabolic breakdown of purine. Purines are present as nitrogenous bases in the DNA and are also found in food like red meat and seafood.

Most uric acid dissolves in the blood and goes into your kidneys. From there, it passes through your body via the urine. Decreased elimination of uric acid is often a result of impaired kidney function due to kidney disease. In many cases, the exact cause of excess uric acid is unknown. Doctors seldom need to test for low levels of uric acid.

The Urine R/M (Urine Routine & Microscopy) test involves gross, chemical, and microscopic evaluation of the urine sample.

1. Gross examination: It involves visually inspecting the urine sample for color and appearance. Typically, the urine color ranges from colorless or pale yellow to deep amber, depending on the urine’s concentration. Things such as medications, supplements, and some foods such as beetroot can affect the color of your urine. However, unusual urine color can also be a sign of disease.

   In appearance, the urine sample may be clear or cloudy. A clear appearance is indicative of healthy urine. However, the presence of red blood cells, white blood cells, bacteria, etc., may result in cloudy urine, indicating conditions such as dehydration, UTIs, kidney stones, etc. Some other factors, such as sperm and skin cells, may also result in a cloudy appearance but are harmless.

2. Chemical examination: It examines the chemical nature of the urine sample using special test strips called dipsticks. These test strips are dipped into the urine sample and change color when they come in contact with specific substances. The degree of color change estimates the amount of the substance present. Some common things detected include protein, urine pH, ketones, glucose, specific gravity, blood, bilirubin, nitrites, and urobilinogen.

3. Microscopic examination: This involves the analysis of the urine sample under the microscope for pus cells, red blood cells, casts, crystals, bacteria, yeast. and other constituents.

This further contains

• Urobilinogen
• Ketone
• Nitrite
• Colour
• Appearance
• Specific Gravity
• Pus Cell
• Epithelial Cell
• Casts
• Crystals
• Protein Urine
• Ph for Urine
• Urine Glucose
• Yeast
• Red Blood Cells
• Leucocyte Esterase
• Blood
• Bacteria
• Bilirubin

A Blood Urea Nitrogen (BUN) test measures the levels of urea nitrogen in the blood. Blood urea is a waste product that is formed in the liver when you eat food and the protein is metabolized into amino acids. This process leads to the production of ammonia that is further converted into urea. Both ammonia and urea are nitrogenous compounds. Your liver releases urea into the blood which is then carried out to the kidneys. In the kidneys, urea is filtered from the blood and flushed out of the body via urine. This is a continuous process, so a small amount of urea nitrogen always remains in the blood.

In the case of a kidney or liver disease, there is a change in the amount of urea present in the blood. If your liver produces urea in an increased amount or if there is any problem in kidney functioning, there might be difficulty in filtering out the waste products from the blood, which can result in increased urea levels in the blood.