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Lab Tests – What Are They?

Lab tests are medical procedures that involve analysing samples taken from the body, such as blood, urine, stool, etc. Each type of test gives important information that helps doctors find and understand different health problems. Some common types of lab tests are:

• Blood tests measure levels of substances like glucose, cholesterol or haemoglobin, and detect infections, anaemia or liver, kidney function issues and more..
• Urine tests help identify urinary tract infections, kidney problems, metabolic disorders like diabetes and more.
• Stool tests analyse stool samples to detect infections, digestive disorders, liver problems or signs of colon cancer.
• Sputum tests helps diagnose respiratory infections such as pneumonia, tuberculosis or chronic bronchitis.

When Does a Doctor Suggest a Lab Test?

A doctor typically suggests a lab test when they need to gather more information. These tests play a crucial role in understanding a patient's health and guiding the next steps in care. The reasons are as follows:

• Lab tests can help the doctor identify and diagnose infections, diseases, or abnormalities that cannot be determined solely from physical symptoms. 
• Lab tests are also done to monitor the progress of chronic diseases like diabetes, kidney disease, or high cholesterol. 
• By screening your health, these tests can show whether a prescribed treatment is working or if adjustments are needed. 
• These tests may be recommended as part of preventive care to catch potential health issues early, even if no symptoms are present. For example, cholesterol tests can help identify the risk of heart disease before symptoms appear.

If you need a lab test in Bengaluru, you can consider using PharmEasy.

How to Prepare for a Lab Test?

Proper preparation for a lab test can help ensure accurate results. Depending on the type of test, certain steps may be required before the sample is taken, such as:

• Some tests, like blood glucose or cholesterol tests, may require you to avoid eating or drinking anything (except water) for 8-12 hours before the test.
• You may need to stop taking certain medications or supplements before the test, as they can affect the results. Always consult your doctor beforehand.
• Stay hydrated, especially for blood or urine tests, as this can make the process easier and improve sample quality.
• For stool tests, you may need to avoid specific foods or medicines that could alter results, like red meat or iron supplements.

Always follow the specific instructions provided by your doctor or the lab to ensure the most accurate results.

Why Choose PharmEasy for a Lab Test in Bengaluru?

• Visiting a center for lab tests can be time-consuming and exhausting, especially if you are sick. PharmEasy makes it convenient by providing a sample collection service from your home.
• We offer over 500 tests right at your doorstep. All you have to do is go to our website or app and book a test. 
• Effortless blood collection using vein finders for accurate vein location.
• There are usually discounts running on tests from time to time, making them more affordable and pocket-friendly. 
• With automated and barcoded machines, the test reports are accurate and reliable.
• Notifications are sent regularly to keep you updated during the lab test procedure.
• It’s available in several big and small cities in India, including Bengaluru.

Last Updated on: 19 November 2025 | 3:16 PM (IST)