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Random Blood Sugar (RBS) Test In Kolkata - Price & Details

Random Glucose test, Random Plasma Glucose test, Casual Blood Glucose test (CBG test), Glucose test

11924952% OFF
  • Summary
    A Random Blood Sugar test checks your circulating blood sugar level at any time. It measures the amount of sugar or glucose present in a person’s blood. A Random Blood Sugar test is done by taking a blood sample from a finger prick or from a vein in your arm, fasting is not required for this test. Read more
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  • FastingNot Required
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Know More About The Test

Dr. Shalu Goyal
Dr. Sasirekha K
Medically Reviewed By Dr. Shalu Goyal, MD (Pathology)
Written By Dr. Sasirekha K, B.D.S., M.D.S. (Prosthodontics)
8 min read • Last Updated On: 19 June 2026 | 10:22 AM (IST)
A quick info on RBS test

A quick info on RBS test

Overview

Overview

Diabetes is a condition in which blood sugar levels become higher than normal in the body. This may happen when the body does not produce enough insulin, cannot use insulin properly, or both. There are three main types of diabetes: type 1, type 2, and gestational diabetes. 

According to a national study by the Indian Council of Medical Research, 11.4% of Indians, approximately 101 million people, are living with diabetes, highlighting its significant impact across the country. 

Blood glucose levels can rise due to overeating, consuming excess carbohydrates, physical inactivity, stress, illness, hormonal changes, or certain medications. They may fall because of skipping meals, eating less than usual, increased physical activity, alcohol intake on an empty stomach, or some medications. Healthy eating, regular exercise, monitoring blood glucose, and taking medicines as advised are important for effective diabetes management. 

A random blood glucose test is commonly used as a simple screening tool to identify individuals who may have diabetes and require further evaluation. It may also be used to detect very low blood sugar levels, which require immediate medical attention.

When and Who Should Get a RBS Test Done?

When and Who Should Get a RBS Test Done?

  • If you have symptoms such as increased thirst, frequent urination, blurred vision, fatigue, unexplained weight loss, or tingling in the hands and feet, these may be suggestive of high blood sugar.
  • If you are experiencing shakiness, hunger, dizziness, confusion, headache, rapid heartbeat, fainting, or seizures, these may be suggestive of low blood sugar.
  • If you are pregnant, it is done as part of the comprehensive blood glucose screening panel.
  • If you use medications such as steroids, antipsychotics, beta-blockers, or statins.

American diabetes association criteria for screening for diabetes

Individuals who have:

  • Obesity
  • First-degree relative with diabetes
  • History of heart disease
  • High blood pressure
  • High cholesterol levels
  • Polyendocrine metabolic ovarian syndrome (PMOS)
  • Physical inactivity
  • Metabolic dysfunction-associated steatotic liver disease
  • People with prediabetes should be tested yearly.
  • People who were diagnosed with gestational diabetes should have testing at least every 1–3 years.
  • For all other people, testing should begin at age 35.
  • If results are normal, testing should be repeated at a minimum of 3-year intervals.
  • Individuals in high-risk groups (e.g., people with HIV, exposure to high-risk medicines, evidence of periodontal disease, history of pancreatitis) should also be closely monitored.

The RBS test is used as an initial screening tool for the above conditions, but it may require further testing for confirmation of diabetes.

What Conditions Can a RBS Test Help Detect?

What Conditions Can a RBS Test Help Detect?

In people with classical signs of increased blood sugar or in very high blood sugar crises, this test may support the diagnosis of diabetes. Additional testing may be recommended to confirm the diagnosis of diabetes.

  • Type 1 diabetes
  • Type 2 diabetes
  • Hypoglycaemia
  • Gestational diabetes
  • Diabetic ketoacidosis
  • Hyperglycaemic hyperosmolar state 

Disclaimer: The above list is for educational purposes only and does not confirm diagnosis or the presence of any condition. Always consult your doctor for your test results and diagnosis.

RBS Test Preparation

RBS Test Preparation

No special preparation is required for this test. 

What to Expect Before the Test

  • Fasting is usually not required for this test. However, noting the time and details of your last meal and regular medications may help with the interpretation of the results.

What to Expect During the Sample Collection

  • A blood sample is collected by a phlebotomist at your home, from a vein in the arm, and sent to a laboratory for analysis.
  • The procedure usually takes only a few minutes and may cause mild discomfort or a slight pinching sensation.

What to Expect After the Test

  • The collected sample is analysed in the laboratory, and results are typically available within a few hours. Based on the results, confirmatory testing or other investigations may sometimes be advised.
  • Mild soreness or bruising at the blood collection site may occur temporarily. Medical attention should be sought if persistent bleeding, swelling, redness, or severe pain develops.
What are the Parameters Included in a RBS Test?

What are the Parameters Included in a RBS Test?

  • Blood glucose (random): Measures the level of glucose in the blood at any time of the day, regardless of meals. Results are reported in mg/dL (milligrams per decilitre).
Normal Range of RBS Test Parameters

Normal Range of RBS Test Parameters

RBS level

Classification

Below 120 mg/dL

Normal

140 - 199 mg/dL

Prediabetes risk

200 mg/dL or above

Diabetes mellitus (requires clinical correlation)

Below 70 mg/dL

Hypoglycaemia risk

Important note: Normal ranges may vary slightly between laboratories. Always refer to the ranges printed on your report and consult your doctor for interpretation in the context of when you last ate.

RBS Test Result Interpretation

RBS Test Result Interpretation

Refer to the table below to understand the possible interpretations of random blood sugar levels with various conditions:

RBS level

Likely interpretation

Recommended action

Below 70 mg/dL

Hypoglycaemia - blood sugar is critically low.

Immediately consume fast-acting carbohydrates. Seek emergency care if unconscious.

70 - 139 mg/dL

Normal range for a random sample.

No action needed. Repeat as part of routine monitoring if risk factors are present.

140 - 199 mg/dL

Borderline - possible prediabetes or impaired glucose tolerance.

Consult a doctor. Follow up with fasting blood sugar (FBS), HbA1c, or oral glucose tolerance test (OGTT) for confirmation.

200 mg/dL or above + symptoms

Consistent with diabetes mellitus.

Immediate medical consultation. Start or adjust diabetes management. Full diabetes workup required.

200 mg/dL or above, no symptoms

Requires confirmation.

The doctor will repeat the test on a separate day before confirming the diabetes diagnosis.

Disclaimer: This table is for educational purposes only. A random blood sugar result provides general information and does not confirm a diagnosis of diabetes. A positive result must always be followed by a confirmatory test. Always consult your doctor.

RBS Risks and Limitations

RBS Risks and Limitations

An RBS test is generally safe with minimal risk. Mild pain, slight bleeding, bruising, dizziness, or light-headedness may occur at the blood draw site. Occasionally, vein access may be difficult, or infection may occur.

Understanding Random Blood Sugar Test Limitations

A random blood glucose test is useful as a screening tool for diabetes, but it is usually not sufficient to confirm the diagnosis except in specific clinical situations. The test result may be affected by recent food intake, particularly meals rich in carbohydrates, as well as by stress, infections, certain medical conditions, and medications such as corticosteroids. In addition, unlike HbA1c, which reflects average blood glucose levels over the past 2 to 3 months, a random blood glucose test measures glucose at a single point in time and does not provide a long-term assessment of blood sugar control.

RBS Test Price in Kolkata

RBS Test Price in Kolkata

In Kolkata, an RBS test via PharmEasy typically costs around INR 119, though the exact cost may vary slightly depending on the diagnostic provider, service location, and any ongoing offers. For better clarity, you can compare RBS test prices across major cities in India.

City

Offer Price

Ahmedabad

119

Bengaluru

119

Chennai

119

Delhi

119

Hyderabad

119

Lucknow

119

Mumbai

119

Nagpur

119

Patna

119

Pune

119

Areas We Serve in Kolkata

Areas We Serve in Kolkata

You can book the Random Blood Sugar (RBS) Test in Kolkata through PharmEasy with convenient home sample collection across several localities, including :

  • Salt Lake
  • New Town
  • Rajarhat
  • Dum Dum
  • Lake Town
  • Baguiati
  • Park Street
  • Ballygunge
  • Bhowanipore
  • Alipore
  • Behala
  • Tollygunge
  • Jadavpur
  • Garia
  • Kalighat
  • Kasba
  • Kankurgachi
  • Ruby
  • Sealdah
  • Shyambazar

You can also check service availability during purchase by entering your pin code.

RBS Test Sample Collection: Home vs. Diagnostic Lab

RBS Test Sample Collection: Home vs. Diagnostic Lab

The random blood sugar test at PharmEasy offers the following convenient features as compared to traditional labs:

Feature

PharmEasy home collection

Traditional labs

At-home sample collection by a phlebotomist

No travel required

Saves time

Flexible appointment slots

Comfortable testing experience

Reduced exposure to crowds

Easy digital report access

No queues

Pro tip: To get the advantage of home-sample collection for the test in Kolkata, visit the PharmEasy website or app. Search for the random blood sugar test, enter your location, and confirm the booking.

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People Also Ask

How is the RBS test different from the HbA1c test?

The RBS test measures blood sugar at a single point in time, whereas the HbA1c reflects average blood sugar control over the past 2 to 3 months.

Can a random blood glucose test diagnose diabetes?

An RBS test alone usually cannot confirm diabetes. If the result is high, your doctor may advise additional tests such as fasting blood sugar (FBS), HbA1c, or oral glucose tolerance test (OGTT).

How often should an RBS test be done in non-diabetics?

Adults and children with normal blood sugar results are generally advised to repeat diabetes screening every 3 years, or as recommended by a healthcare provider.

When is an RBS test recommended?

It may be recommended during routine health check-ups or if a person has symptoms of increased or decreased sugar in the blood.

What happens if my RBS level is high?

A high RBS level does not always mean diabetes. Your doctor may recommend repeat testing or further investigations to confirm the diagnosis.

How are samples collected once I book the test with PharmEasy?

A trained phlebotomist visits your home to collect the blood sample using sterile equipment and standard safety protocols.

Can a random blood sugar test be booked online in Kolkata?

Yes. PharmEasy Labs offers convenient online booking across multiple locations in Kolkata through the website and app.
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