🪨 Renal Calculi (Kidney Stone) Analysis

Let’s understand this in a very simple way.

What is renal calculi?
Renal calculi means kidney stones. These are hard deposits formed inside the kidney due to minerals and salts.

When a patient passes a stone, nurses are often told to collect and send it to the laboratory.

But why do we send it?
Not just to see it… but to know what it is made of.

Kidney stones can be of different types:

• Calcium stones
• Uric acid stones
• Struvite stones
• Cystine stones

Each type has a different cause and treatment. So doctors need to know the composition (content) of the stone.

✅ Correct Answer: Composition of calculi

Why is composition important?
Because treatment depends on it. For example:

• Calcium stones → diet changes, fluids
• Uric acid stones → medications to reduce uric acid
• Infection stones → treat infection

Why other options are not correct?

• Infectious organism → urine test is used for this, not stone analysis.
• Size of calculi → can be seen by X-ray or ultrasound.
• Blood pressure in stone → this option does not make medical sense.

Simple Exam Trick:
Kidney stone sent to lab → To know its composition

💚 Exam Objective Nursing – Asha D
Easy concepts • Strong memory • Nursing success