Blood Tests for Stomach Infections Explained
Wondering if a blood test can detect a stomach infection? Learn how tests like CBC, CRP, and H. pylori help diagnose digestive issues. Book online on Apollo 24|7.
Introduction
Stomach infections can be uncomfortable and sometimes even serious if left untreated. If you're experiencing persistent stomach pain, nausea, diarrhoea, or other digestive issues, your doctor may recommend a blood test to help diagnose the problem.
Blood tests are a simple and effective way to detect infections, inflammation, or other underlying conditions affecting your stomach and digestive system. In this article, we’ll explain how blood tests help diagnose stomach infections, what they can reveal, and how you can prepare for them.
Why Are Blood Tests Needed for Stomach Infections?
Stomach infections can be caused by bacteria like H. pylori, viruses such as norovirus, or parasites. Symptoms like abdominal pain, bloating, vomiting, and diarrhoea may indicate an infection, but they can also be signs of other digestive disorders.
A blood test helps doctors:
- Identify the cause of the infection, such as bacterial, viral, or parasitic infections.
- Check for inflammation using markers like C-reactive protein (CRP).
- Assess overall health by identifying dehydration or electrolyte imbalance.
- Rule out other conditions like gastritis or foodborne illnesses.
Consult Top Specialists for Personalised Health Advice
Common Blood Tests for Stomach Infections
Here are some key blood tests your doctor may order:
1. Complete Blood Count (CBC)
- What it checks: Measures red blood cells, white blood cells (WBCs), and platelets.
- Why it’s done: High WBCs may indicate an infection. Low red blood cells could suggest bleeding, which is common in ulcers.
2. C-Reactive Protein (CRP) Test
- What it checks: Levels of CRP, a protein that increases with inflammation.
- Why it’s done: Helps detect bacterial infections or severe inflammation in the gut.
3. Liver Function Test (LFT)
- What it checks: Liver enzymes (ALT, AST, bilirubin).
- Why it’s done: Some stomach infections can affect liver function, especially if caused by viruses like hepatitis.
4. H. pylori Antibody Test
- What it checks: Antibodies against Helicobacter pylori, a bacteria that causes stomach ulcers.
- Why it’s done: Confirms if an H. pylori infection is present.
5. Electrolyte Panel
- What it checks: Sodium, potassium, and chloride levels.
- Why it’s done: Severe vomiting or diarrhoea can lead to dehydration and electrolyte imbalances.
How to Prepare for a Blood Test?
Preparing for a blood test is generally simple, but a few steps may help ensure accurate results.
- Fasting: Some tests, like blood sugar or lipid tests, may require fasting for 8-12 hours. Your doctor will inform you.
- Hydration: Drink enough water to make blood drawing easier.
- Medications: Inform your doctor about any medications you’re taking, as some can affect results.
What Happens After the Test?
After your blood sample is collected:
- It is sent to a diagnostic lab for analysis.
- Results usually come within 24-48 hours.
- Your doctor will discuss the findings and recommend treatment if needed.
Managing Stomach Infections: Tips for Recovery
If your blood test confirms a stomach infection, follow these steps for faster recovery:
1. Stay Hydrated
Consuming fluids like water, oral rehydration solutions, or herbal teas may help prevent dehydration.
2. Eat a Bland Det
Easily digestible foods such as bananas, rice, and toast might be gentler on the stomach. Avoid spicy, oily, or acidic foods during recovery.
3. Take Prescribed Medications
Your doctor may prescribe antibiotics, probiotics, or antacids, depending on the underlying cause.
4. Rest and Avoid Stress
Resting and managing stress may support faster healing and reduce digestive irritation.
When to See a Doctor?
Seek medical help if you experience:
- Severe or persistent vomiting/diarrhoea.
- Blood in stool or vomit.
- High fever (above 101°F).
- Signs of dehydration such as dizziness, dry mouth or low urine output.
Book a Blood Test with Apollo 24|7
If you suspect a stomach infection, getting a blood test is quick and easy. You can book a test online through Apollo 24|7 and get tested at your convenience.
Why Choose Apollo 24|7?
- Accurate & Fast Results – Reliable lab testing with quick reports.
- Home Sample Collection – No need to visit a lab; a technician comes to you.
- Expert Consultation – Discuss results with top gastroenterologists.
Final Thoughts
Blood tests are a crucial tool in diagnosing stomach infections and ensuring proper treatment. If you’re experiencing digestive discomfort, don’t ignore it—early detection can prevent complications. Follow your doctor’s advice, stay hydrated, and eat a gentle diet to recover faster.
Consult Top Gastroenterologists
Consult Top Gastroenterologists
Dr Rohit Sureka
Gastroenterology/gi Medicine Specialist
15 Years • MBBS, DNB General Medicine, DNB Gastroenterology
Jaipur
Apollo 247 virtual - Rajasthan, Jaipur
Dr. Umakanth Eskala
Gastroenterology/gi Medicine Specialist
16 Years • DM (GASTRO)
Visakhapatnam
Apollo 24|7 Clinic - Andhra Pradesh, Visakhapatnam
Dr. Vijay Rai
Gastroenterology/gi Medicine Specialist
19 Years • MBBS,MD General Medicine,MD GASTROENTOLOGY
Kolkata
Livgastro, Kolkata
Dr. Gorantla Sarath Chandra
Gastroenterology/gi Medicine Specialist
15 Years • MD, DM (Gastro)
Hyderabad
Star Hospital, Financial District, Hyderabad
(225+ Patients)
Dr. Paramesh K N
Gastroenterology/gi Medicine Specialist
16 Years • MBBS, MS ( General Surgery), DNB ( Surgical Gastroenterology)
Hyderabad
Sprint Diagnostics Centre, Hyderabad
Consult Top Specialists for Personalised Health Advice
Dr Rohit Sureka
Gastroenterology/gi Medicine Specialist
15 Years • MBBS, DNB General Medicine, DNB Gastroenterology
Jaipur
Apollo 247 virtual - Rajasthan, Jaipur
Dr. Umakanth Eskala
Gastroenterology/gi Medicine Specialist
16 Years • DM (GASTRO)
Visakhapatnam
Apollo 24|7 Clinic - Andhra Pradesh, Visakhapatnam
Dr. Vijay Rai
Gastroenterology/gi Medicine Specialist
19 Years • MBBS,MD General Medicine,MD GASTROENTOLOGY
Kolkata
Livgastro, Kolkata
Dr. Gorantla Sarath Chandra
Gastroenterology/gi Medicine Specialist
15 Years • MD, DM (Gastro)
Hyderabad
Star Hospital, Financial District, Hyderabad
(225+ Patients)
Dr. Paramesh K N
Gastroenterology/gi Medicine Specialist
16 Years • MBBS, MS ( General Surgery), DNB ( Surgical Gastroenterology)
Hyderabad
Sprint Diagnostics Centre, Hyderabad
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