Chronic Vomiting or Nasogastric Suction
What is Chronic Vomiting or Nasogastric Suction?
Chronic vomiting means repeated episodes of throwing up over weeks or months. This condition drains your stomach of acid and fluids. Your body normally keeps a careful balance between acids and bases in your blood. When you vomit often, you lose stomach acid, which is very acidic.
This loss of acid causes your blood to become too alkaline, a condition called metabolic alkalosis. Your body tries to compensate by holding onto carbon dioxide to restore balance. Blood tests can detect this by measuring elevated CO2 levels. Nasogastric suction, where a tube removes stomach contents, causes the same chemical imbalance.
Many conditions can trigger chronic vomiting. These include pyloric stenosis, where the stomach outlet narrows, gastroparesis, where the stomach empties too slowly, and eating disorders like bulimia. Understanding the root cause helps you find the right treatment and prevent dangerous chemical imbalances.
Symptoms
- Frequent vomiting episodes lasting weeks or months
- Nausea that does not go away
- Dehydration with dry mouth and decreased urination
- Weakness and fatigue from fluid loss
- Dizziness or lightheadedness when standing
- Muscle cramps or twitching from electrolyte imbalances
- Weight loss from inability to keep food down
- Abdominal pain or bloating
- Confusion or mental fog in severe cases
Some people with mild chronic vomiting may not notice serious symptoms right away. The chemical imbalances develop gradually. Blood testing helps catch these changes before they become dangerous.
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Causes and risk factors
Chronic vomiting has many possible causes. Pyloric stenosis narrows the opening between your stomach and small intestine. Gastroparesis means your stomach muscles do not work properly to empty food. Eating disorders like bulimia involve intentional vomiting. Cyclic vomiting syndrome causes repeated episodes without clear triggers. Pregnancy can cause severe morning sickness called hyperemesis gravidarum. Brain conditions, infections, and certain medications can also trigger ongoing nausea and vomiting.
Nasogastric suction removes stomach contents through a tube placed through your nose. Hospitals use this for bowel obstructions or after surgery. Both chronic vomiting and nasogastric suction drain stomach acid from your body. This acid loss makes your blood more alkaline. Your body responds by retaining carbon dioxide to balance the pH. Risk factors include digestive disorders, eating disorders, chronic infections, neurological conditions, and prolonged hospital stays requiring stomach drainage.
How it's diagnosed
Doctors diagnose chronic vomiting by reviewing your symptoms and medical history. They will ask about how often you vomit, what triggers episodes, and other symptoms you experience. Blood tests play a key role in diagnosis. A carbon dioxide test measures CO2 levels in your blood. High CO2 indicates metabolic alkalosis from acid loss. This pattern helps confirm that vomiting is causing chemical imbalances.
Rite Aid offers testing for carbon dioxide levels as part of our flagship panel. You can get tested at over 2,000 Quest Diagnostics locations nationwide. Additional tests may include electrolyte panels to check sodium, potassium, and chloride levels. Imaging studies like upper GI series or gastric emptying scans can identify structural problems. Endoscopy lets doctors look directly at your stomach and esophagus. Finding the underlying cause guides treatment decisions.
Treatment options
- Identify and treat the underlying cause of vomiting
- Stay hydrated with small sips of water or electrolyte drinks
- Eat bland foods in small amounts when you can tolerate them
- Avoid trigger foods that worsen nausea
- Take anti-nausea medications like ondansetron or metoclopramide as prescribed
- Receive intravenous fluids to restore hydration and electrolyte balance
- Work with a therapist if vomiting relates to an eating disorder
- Consider prokinetic medications for gastroparesis to help stomach emptying
- Surgery may be needed for structural problems like pyloric stenosis
- Monitor CO2 and electrolyte levels with regular blood tests
Concerned about Chronic Vomiting or Nasogastric Suction? Get tested at Rite Aid.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
When you vomit repeatedly, you lose stomach acid from your body. This makes your blood too alkaline, a condition called metabolic alkalosis. Your body compensates by holding onto carbon dioxide to restore pH balance. Blood tests detect this by showing elevated CO2 levels.
The timeline varies based on how often and how much you vomit. Severe daily vomiting can cause chemical imbalances within days. Milder chronic vomiting may take weeks to affect your CO2 levels. Regular blood testing helps catch these changes early before they cause serious symptoms.
Yes, severe chronic vomiting can become dangerous if left untreated. Dehydration, electrolyte imbalances, and metabolic alkalosis can affect your heart rhythm and brain function. Malnutrition and weight loss weaken your body over time. Seek medical care if you cannot keep fluids down for more than 24 hours.
Nausea is the queasy feeling that you might throw up. Vomiting, also called emesis, is when your stomach forcefully expels its contents through your mouth. You can have nausea without vomiting, but vomiting usually comes with nausea. Both indicate your digestive system needs attention.
Treatment focuses on stopping the vomiting and restoring normal chemistry. Doctors give intravenous fluids with sodium chloride to replace lost acid. Anti-nausea medications help control vomiting episodes. Treating the underlying cause, like gastroparesis or an eating disorder, prevents the problem from returning.
Not always, but it deserves medical evaluation. Some causes like morning sickness resolve on their own. Other causes like gastroparesis or eating disorders need ongoing treatment. The chemical imbalances from chronic vomiting can become serious even if the underlying cause is treatable. Getting tested helps identify what needs attention.
Prevention depends on the cause. Managing underlying conditions like diabetes helps prevent gastroparesis. Treating eating disorders early stops the vomiting cycle. Avoiding trigger foods reduces nausea in some people. If you have cyclic vomiting syndrome, identifying triggers and taking preventive medications can reduce episodes.
Start with clear liquids like broth, water, and electrolyte drinks. Progress to bland foods like crackers, toast, rice, and bananas. These foods are easy to digest and gentle on your stomach. Avoid greasy, spicy, or acidic foods until your stomach settles. Eat small amounts every few hours rather than large meals.
Testing frequency depends on how severe your condition is. During active treatment, your doctor may check your CO2 and electrolytes every few days. Once your vomiting is controlled, testing every few weeks or months helps ensure levels stay normal. Regular monitoring catches problems before they cause symptoms.
Yes, nasogastric suction removes stomach acid just like vomiting does. Patients with NG tubes for extended periods develop the same metabolic alkalosis. Hospitals monitor CO2 and electrolyte levels closely in these patients. They may adjust fluids and tube settings to prevent dangerous imbalances.