What Happens if I Have Low Levels of Bicarbonate in Blood?

Disclosure: This site contains some affiliate links. We might receive a small commission at no additional cost to you.

What happens if I have low levels of bicarbonate in blood? This is a question that might cross your mind if you’re reviewing your blood test results or trying to understand a recent diagnosis. You might be feeling confused and maybe a little worried. It can be pretty confusing trying to understand medical jargon. But understanding bicarbonate’s role in our bodies can give you valuable insight into your overall health.

Bicarbonate, sometimes referred to as HCO3, is an electrolyte that plays a key role in maintaining your body’s delicate pH balance. So, what happens if I have low levels of bicarbonate in blood? In a nutshell, it indicates a condition called metabolic acidosis, which basically means your blood is too acidic.

Table of Contents:

Understanding Bicarbonate

What is Bicarbonate and What Does it Do?

Bicarbonate is a natural byproduct of your body’s metabolism. As your body processes food and converts it into energy, carbon dioxide is created as a waste product.

A portion of this carbon dioxide converts to bicarbonate in your blood. It then gets transported to your lungs to be exhaled.

The kidneys play a vital role in this process. They are in charge of regulating bicarbonate by filtering and reabsorbing it from your urine. This process helps your body maintain the proper pH balance – something absolutely essential for a whole host of bodily functions.

The Importance of pH Balance

Our bodies function optimally within a very narrow pH range. It can’t be too acidic or too basic; it needs to be just right. The pH scale ranges from 0 (extremely acidic) to 14 (extremely basic).

A healthy blood pH should hover around 7.35 to 7.45. Bicarbonate acts as a buffer.

It helps neutralize excess acids in the blood, preventing the pH from dipping too low. This is a key risk factor for a variety of health problems.

Metabolic Acidosis: What Happens When You Have Low Bicarbonate Levels

When your blood contains too much acid and the bicarbonate level falls, a condition known as metabolic acidosis develops. So what causes this imbalance?

Causes of Low Bicarbonate

There are several reasons why someone might have low bicarbonate. Kidney problems are often a key factor because they regulate bicarbonate levels in the blood.

As kidney function declines, the ability to effectively remove acid decreases, leading to acid buildup and, consequently, lower bicarbonate. This is a big reason why low serum bicarbonate increases the risk of kidney failure. A study of thousands of patients found that individuals with lower serum bicarbonate progressed toward kidney failure faster.

This link underscores the significance of maintaining balanced bicarbonate levels for optimal kidney health. This vicious cycle of declining kidney function and increasing acidosis is just one piece of the puzzle though. Several other health issues can also lead to metabolic acidosis, and recognizing these underlying causes is essential.

Let’s break it down:

  • Diabetic ketoacidosis: This serious complication of diabetes arises when the body lacks sufficient insulin to process sugars properly. Consequently, the body starts burning fat for energy, producing ketones as a byproduct. Ketones are acidic and can lead to dangerously high blood acidity, depleting bicarbonate in the process. You can find more details on diabetic ketoacidosis on WebMD.
  • Hyperchloremic acidosis: This occurs due to an excessive loss of sodium bicarbonate from the body, often as a result of prolonged diarrhea, overuse of laxatives, or certain medical conditions affecting kidney function. The National Kidney Foundation has a lot of great resources for kidney patients.
  • Lactic acidosis: This type develops when your body produces too much lactic acid, often under conditions of low oxygen. This could be a consequence of strenuous exercise, severe infections, heart failure, or liver problems.
  • Renal tubular acidosis: This occurs when the kidneys don’t effectively excrete acids into the urine, causing acid buildup in the bloodstream and lowering bicarbonate levels.

Symptoms of Metabolic Acidosis: Spotting the Signs

Not everyone experiencing metabolic acidosis exhibits clear-cut symptoms, particularly if the condition progresses slowly. If symptoms do appear, it’s a signal that the acid-base imbalance is becoming more pronounced.

Early detection and treatment are vital, and understanding the signs is crucial. Watch for any of these:

  • Changes in breathing: Early on, breaths may be faster and deeper than usual. As acidosis worsens, breathing might become slower, deeper, and require noticeable effort. Any sudden changes in breathing patterns warrant immediate medical attention.
  • Rapid heartbeat: The heart rate may increase as the body tries to compensate for the acidosis.
  • Fatigue and weakness: You may feel abnormally tired and have less energy than usual. Muscle weakness is a common symptom of more severe cases.
  • Confusion: Difficulty concentrating or feelings of disorientation can be present as the condition impacts brain function.
  • Nausea and vomiting: An upset stomach and digestive issues can be additional signs.
  • Loss of appetite: It’s not uncommon to experience a decreased desire to eat.
  • Headaches: Lingering headaches, particularly if accompanied by other symptoms, could be linked to acidosis.

It’s important to remember that many other medical conditions can trigger these symptoms, so seeking a professional diagnosis is crucial for accurate treatment.

How Do You Address Low Bicarbonate Levels?

Medical Treatment for Metabolic Acidosis

If you’re diagnosed with metabolic acidosis, the first step in addressing it is determining the underlying cause. Your doctor will conduct a thorough evaluation, review your medical history, and run necessary tests, including blood and urine analysis, to pinpoint the specific trigger.

Once the underlying cause is identified, the treatment plan will be tailored to address both the acidosis and the root problem. It’s not a one-size-fits-all approach, and the goal is to restore balance. The National Kidney Foundation has a variety of kidney topics about kidney diseases.

Here are some general medical approaches commonly employed in treating metabolic acidosis:

  • Sodium Bicarbonate or Sodium Citrate: If your doctor finds your serum bicarbonate level to be below 22 mEq/L, they might recommend these base substances in the form of oral medication to help nudge your blood pH back into a healthy range. A combination of diet modifications, which I’ll delve into next, might also be included.
  • IV Fluids: For severe cases of dehydration or electrolyte imbalances, intravenous fluids might be necessary to restore fluid and mineral levels quickly.
  • Insulin Therapy: If the root cause of your acidosis is diabetic ketoacidosis, insulin administration is necessary to manage blood sugar levels and alleviate the excess ketones causing the acidity.
  • Treatment of the Underlying Condition: If your acidosis stems from an underlying illness like kidney failure, heart failure, or lung disease, treating that condition becomes paramount.
  • Other Medications: In certain situations, other medications like inotropes, which help your heart pump more effectively and thus improve oxygen delivery to the tissues, might be necessary.

The Role of Diet in Managing Low Bicarbonate Levels

If you’ve been diagnosed with metabolic acidosis, making simple dietary adjustments can support your medical treatment. However, don’t implement any changes without talking with your doctor or a renal dietician first.

The core concept is pretty straightforward: reduce acid-producing foods and up your intake of alkaline-producing ones. The general idea is that foods are broken down into either acidic or alkaline “ash,” affecting your body’s overall pH balance.

Some research supports this dietary intervention. One study highlights the benefits of an alkaline diet for chronic kidney disease patients. Research has found that during kidney failure, an increase in acid leads to the body producing endothelin and aldosterone. These substances can cause the glomerular filtration rate to decline, making your chronic kidney disease worse. This decline was lessened with the help of an alkaline diet.

Further, a study suggests a direct correlation between dietary protein, a known acid-producing element, and the risk of kidney injury. Enhanced intrinsic acid production triggered by protein intake contributes to this damage, underscoring the potential benefit of an alkali-rich diet. Now, let’s talk about what foods might need tweaking.

Acid-Producing Foods: Things You Might Want to Eat Less Of:

Here are common food groups often classified as more acid-forming in the body:

CategoryFoods
MeatsBeef, pork, lamb, chicken, turkey, fish
EggsWhole eggs
DairyCheese, milk, yogurt
GrainsWheat, rice, corn, bread, pasta, cereal
OtherAlcohol, sugary drinks, processed foods

Alkali-Producing Foods: Things You Might Want to Eat More Of:

Consider incorporating these alkaline-forming options into your diet. But remember, moderation is key, so check with your healthcare professional or a renal dietitian for personalized guidance tailored to your specific health needs.

CategoryFoods
FruitsBerries, citrus, melons, bananas, apples
VegetablesLeafy greens, broccoli, carrots, tomatoes
Nuts and SeedsAlmonds, walnuts, sunflower seeds
LegumesBeans, lentils, chickpeas
OthersAlkaline water

It’s important to keep in mind that while these adjustments can play a supportive role, they don’t cure metabolic acidosis. It’s critical to follow the treatment plan laid out by your doctor. Learn more about how to manage living kidney donor situations.

FAQs About What Happens if I Have Low Levels of Bicarbonate in Blood

What Happens if Your Bicarbonate Levels Are Low?

If your bicarbonate levels are low, you’re likely experiencing metabolic acidosis. This means your blood has become more acidic than it should be, which can negatively affect many of your body’s systems.

How Do You Treat Low Bicarbonate Levels?

Treating low bicarbonate involves first identifying the underlying cause, as discussed above. Addressing the root issue, like diabetes or kidney failure, forms the cornerstone of treatment.

Alongside that, your doctor might recommend medications to increase bicarbonate levels, such as sodium bicarbonate or sodium citrate. For severe cases involving dehydration or electrolyte imbalance, intravenous fluids might be necessary. Dietary modifications like reducing acid-producing foods and favoring alkaline options can play a supporting role but always talk to your healthcare professional before making drastic dietary shifts.

What Causes a Decrease in Bicarbonate?

The decline in bicarbonate can stem from a variety of factors, some of which include kidney disease or dysfunction, prolonged diarrhea leading to bicarbonate loss, diabetes-related complications, specific metabolic disorders like lactic acidosis, excessive consumption of acid-producing foods, or even certain medications impacting acid balance.

As a recap, kidney disease stands out as a frequent contributor, as their primary function includes filtering waste products and regulating acid-base balance in the body. So, as their ability to remove acid decreases, it leads to lower bicarbonate. You can find a list of clinical trials from the National Kidney Foundation here.

Does Low Bicarb Indicate Dehydration?

While low bicarb doesn’t directly indicate dehydration, both can be linked. Dehydration, particularly when severe or prolonged, can lead to electrolyte imbalances, potentially influencing bicarbonate levels as well.

Certain conditions, like severe diarrhea which contributes to both dehydration and bicarbonate loss, can exacerbate these issues simultaneously. However, metabolic acidosis can arise from a multitude of factors, so it’s essential not to jump to conclusions based solely on bicarbonate levels.

A thorough assessment by a medical professional is key to figuring out the exact cause of your low bicarbonate and getting proper treatment. If you or a loved one is dealing with mental health, it’s good practice to focus on patient education and read patient stories.

Conclusion

What happens if I have low levels of bicarbonate in blood? Well, low levels of bicarbonate indicate metabolic acidosis – a condition in which the blood is too acidic. Recognizing this issue is important because it can impact many of the body’s essential functions.

Identifying and treating the root cause is vital, as metabolic acidosis often stems from underlying health issues like kidney dysfunction or diabetes-related complications.

author avatar
Jose Rossello, MD, PhD, MHCM
Leave a Comment

Your email address will not be published. Required fields are marked

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}