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Gastroenteritis is a common condition that affects the gut. It refers to the inflammation of the gastrointestinal tract that includes the stomach and the intestines. The major cause of gastroenteritis is the entry of bacteria or virus (more common) through contaminated food and water causing bacterial or viral infection. This condition is usually mild and self-limiting and does not require any medical treatment. However, if the condition becomes severe or if the symptoms persist for a long time, medical attention should be provided.

Signs and symptoms

The following are the common signs and symptoms of gastroenteritis.

  • Diarrhea: Passage of three or more liquid stools per day
  • Blood or mucus in the stool
  • Vomiting
  • Nausea
  • Abdominal pain and cramps
  • Fever and chills
  • Loss of appetite
  • Weight loss

Vomiting and watery diarrhea may cause dehydration, which is one of the major complication of gastroenteritis. It is important to watch out for the signs of dehydration, which include:

  • Excessive thirst
  • Dry mouth
  • Reduced urine
  • Urine dark in color
  • Dry skin
  • Sunken eyes and cheeks


Most people with gastroenteritis may not recognize the typical symptoms of the condition or do not seek medical attention as the symptoms are usually mild and resolve in a few days. However, in conditions where diarrhea and vomiting are severe, a visit to the doctor may be necessary. After taking a detailed history and performing a physical examination, your doctor may ask to take the following tests to find out the underlying cause of diarrhea.

 Stool tests: These are the most common diagnostic tests performed to identify the pathogen that has caused gastroenteritis. These include:

  1. Stool culture: A sample of your stool would be cultured in a specific nutrient media which allows the selective growth of the pathogen. Culture tests helps in detecting most common intestinal infections such as- Salmonella, Campylobacter and Shigella.
  2. Specific stool tests for detecting the toxins produced by organisms such as Clostridium Difficile and Escherichia Coli.
  3. Antigen Tests: In this test, the stool sample is studied to detect the antigens produced by virus such as rotavirus and parasites such as Giardia Lambia and Entamoeba Histolytica. Rotavirus is the most common cause of gastroenteritis in children.

Tests to rule out other causes of diarrhea include:

  1. Trypsin- chromotrypsin test: Low levels of enzymes such as trypsin and chromotrypsin in the stool sample indicate cystic fibrosis or other pancreatic diseases.
  2. Fecal fat test: Increased levels of fat in the stool is usually due to malabsorption which is seen in conditions such as celiac disease or cystic fibrosis.
  3. Food Allergy tests: Allergy to food products may also cause diarrhea. Allergy tests include oral food challenges and food elimination tests.
  4. Lactose intolerance test: This test helps to evaluate whether a patient is able to digest lactose.


There is often no specific treatment for gastroenteritis. No antibiotics are effective against viral gastroenteritis. However, the most important factor while providing treatment for gastroenteritis is replacing the lost fluids and electrolytes from the body caused due to vomiting and diarrhea.

The doctor would recommend the patient to drink plenty of water to prevent dehydration. He may also prescribe over-the-counter oral rehydration solutions to replenish the body with the lost electrolytes and minerals. In severe cases, intravenous fluids are also given.


There are some measures which help in reducing the risk of developing gastroenteritis such as

  • Wash hands frequently
  • Wash all the fruits and vegetables thoroughly before eating
  • Avoid sharing towels, clothes or utensils
  • Practice good hygiene
  • Follow a healthy diet
  • Drink plenty of water
  • Keep surroundings clean

Why choose Apollo Diagnostics?

We have the expertise of 34 + years in healthcare. Our labs are equipped with EQUAS (External Quality Assurance System) and loaded with full automated machines to ensure error-free reports, with a quick turnaround time, and at an affordable price. For your convenience, we offer free home collection of samples.

For appointments, please call 4444 2424.            


  1. Gastroenteritis. Accessed on 24-10-2017
  2. Gastroenteritis (diagnosis and tests). Accessed on 24-10-2017
  3. Diarrhoea and vomiting (gastroenteritis). Accessed on 24-10-2017
  4. Gastroenteritis (treatment).  Accessed on 24-10-2017
  5. Causes of Gastroenteritis. Accessed on 24-10-2017
  6. Gastroenteritis (prevention). Accessed on 24-10-2017
  7. Viral gastroenteritis (stomach flu). Accessed on 24-10-2017
  8. Gastroenteritis (treatment). Accessed on 24-10-2017

Patient Testimonials

“Finding the best place for a diagnostic test is as important as consulting the best doctor. The Apollo name was what guided me to Apollo Diagnostics and I am indeed glad that I came here. From attending us on time to sample collection, everything flowed so smoothly. I was particularly impressed by the hygiene. It was definitely a value for money experience. Thanks a lot Apollo Diagnostics…keep up the good work!”

Mrs. Ferha Jabeen, Old Bowenpally, Secunderabad

“I Have heard a lot of good things about Apollo Diagnostics from our family physician as well as from relatives and friends. So then next time I needed a diagnostic centre, I visited Apollo Diagnostics and I was really glad I did. For one, I didn’t have to wait. The technician was extremely good, and the place was really clean. It was certainly a value for money experience. Great job Apollo Diagnostics!”

Ms. T. Jaya, Nakkalagutta, Hanmakonda

“I must say Apollo Diagnostics places a great value on time and patient comfort! I am a fan of their home collection service which is not only on time and technically sound, but the hygiene and cordiality of the visiting technician is also commendable. Hats off! I’ll continue to recommend Apollo Diagnostics to my family and friends.”

Mr. B. Pochaiah, Mallikarjuna Nagar Colony, Old Bowenpally, Secunderabad

“I have always had a great experience with Apollo Diagnostics. The calls are unfailingly answered. The scheduled appointment is kept to the minute. The phlebotomist is well-trained in both technique and putting the patient at ease. Apollo Diagnostics undoubtedly delivers value for money. They will always be my top option for all the diagnostic needs of my family.”

Mr. Prasanta Kumar Jena, JP Nagar, Bengaluru

“I came to know about Apollo Diagnostics from my relatives and friends. So, when I required a check up to be done, I thought about trying their service once. From sticking to the appointed time to accuracy of technique, it was really a great experience overall. Hygiene of the technician and the centre as well, was also quite admirable. I certainly felt it delivers value for money service. From now on, I’ll always visit Apollo Diagnostics for all my checkups.”

Mr. Venkateshwar Rao, Hanmakonda

“I was looking for a good diagnostic centre to get some checkups done. I was confused as there are so many of them all over the city. Some of my friends recommended Apollo Diagnostics as the best one. I’ll always remain thankful to them. The technician at Apollo Diagnostics was not only punctual but his competency was certainly praiseworthy. I never felt any discomfort as he was so confident and compassionate. Great job Apollo Diagnostics!”

Mr. T Radhakishan Rao, Hanmakonda

“My experience with Apollo Diagnostics has been consistently good. Securing the appointment was very easy and the schedule was maintained to the dot. The behaviour of the technician was pleasant and he was well–versed with his job. The place was noticeably clean and I did not face any discomfort during the process. The reports were delivered as promised and surprisingly, the service was pretty affordable. I would recommend Apollo Diagnostics to my circle without any hesitation!”

Mr. Arif Ameer, JP Nagar, Bengaluru

“Apollo Diagnostics came highly recommended by my friends. I was particularly impressed by their cordiality, time management and process competence. Another must mention is the hygiene factor that is impeccable. Given the quality delivered, this is certainly a value for money experience. Thanks a lot Apollo Diagnostics…keep up the great work!”

Ms. A.Madhavi, Warangal

“Our family physician strictly instructed me to get the checkup done at Apollo Diagnostics. I am glad I respected his opinion. I was attended to as soon as I went in. The technician was a true expert at his job and made it a painless experience for me. I also observed that the centre was spotless and all the staff members were particular about maintaining hygiene. Apollo Diagnostics certainly delivers value for money. I’ll always recommend Apollo Diagnostics to my family and friends.”

Ms. Vimala, Hanmakonda

“My Apollo Diagnostics experience has thus far been truly amazing. Besides unfailingly maintaining the schedule – be it sample taking or report delivery, their sense of cleanliness is also tops. The technicians are well-trained and do their job with diligence and in a friendly manner that puts patients at ease at once. Apollo Diagnostics is setting a very high standard indeed! Now that’s what I call a fine job!”

Ms. G. Jyothi, Warangal

“My mother needed a blood test, but was unable to walk due to pain in her leg. A Phlebotomist from Apollo Diagnostics came home and collected the sample. I was informed, via SMS, that the report could be collected from any of the 3 centres in Dibrugarh, downloaded online or even delivered home for a nominal fee. Although the rates were reasonable, my mother also received a senior citizens discount too! This saved my time, money & energy. My aachhe din really seemed to have arrived! Thank you Apollo Diagnostics and hats off for displaying true professionalism.”

Mr. Alokk Kar Dowerah, Dibrugarh

“Whenever I need to have a blood sample collected from home, I ask for Vasu. He is punctual, courteous and so skilled I hardly feel any pain when he draws the sample. Plus, I truly appreciate how quickly the reports are delivered. Thanks Apollo!”

Mr. Sukumar, Film director, Sriram Nagar, Hyderabad