The normal range for CO2 is 23 to 29 mEq/L (milliequivalent units per liter of blood). The blood test often measures blood pH along with CO2 levels to further determine the cause of your symptoms.
What is considered high CO2 levels in blood?
Results are given in millimoles per liter (mmol/L) or milliequivalents per liter (mEq/L). Normal values in adults are 22 to 29 mmol/L or 22 to 29 mEq/L. Higher levels of carbon dioxide may mean you have: Metabolic alkalosis, or too much bicarbonate in your blood.
What is a high pCO2 level?
The pCO2 gives an indication of the respiratory component of the blood gas results. A high and low value indicates hypercapnea (hypoventilation) and hypocapnea (hyperventilation), respectively. A high pCO2 is compatible with a respiratory acidosis and a low pCO2 with a respiratory alkalosis.
What is normal CO2 in ABG?
Normal ABG Levels
|pH||Hydrogen||7.35 – 7.45|
|PaCO2||Carbon dioxide||35 – 45 mmHg|
|HCO3-||Bicarbonate||22 – 26 mmol/L|
What is a normal pCO2 level?
The partial pressure of carbon dioxide (PCO2) is the measure of carbon dioxide within arterial or venous blood. It often serves as a marker of sufficient alveolar ventilation within the lungs. Generally, under normal physiologic conditions, the value of PCO2 ranges between 35 to 45 mmHg, or 4.7 to 6.0 kPa.
What happens if carbon dioxide levels in the blood are too high?
Hypercapnia is excess carbon dioxide (CO2) build-up in your body. The condition, also described as hypercapnea, hypercarbia, or carbon dioxide retention, can cause effects such as headaches, dizziness, and fatigue, as well as serious complications such as seizures or loss of consciousness.
How do you get your CO2 levels down?
Installing and maintaining a good ventilation system will help reduce CO2 levels. As the system brings in fresh outdoor air, the CO2 will naturally dilute and become less concentrated, keeping the indoor carbon dioxide within safe levels.
What causes high PCO2 levels?
The most common cause of increased PCO2 is an absolute decrease in ventilation. Increased CO2 production without increased ventilation, such as a patient with sepsis, can also cause respiratory acidosis. Patients who have increased physiological dead space (eg, emphysema) will have decreased effective ventilation.
How do you interpret a blood gas analysis?
Rules for rapid clinical interpretation of ABG
- Look at pH – < 7.40 – Acidosis; > 7.40 – Alkalosis.
- If pH indicates acidosis, then look at paCO2and HCO3-
- If paCO2is ↑, then it is primary respiratory acidosis. …
- If paCO2↓ and HCO3- is also ↓→ primary metabolic acidosis. …
- If HCO3-is ↓, then AG should be examined.
What causes respiratory acidosis?
Respiratory acidosis involves a decrease in respiratory rate and/or volume (hypoventilation). Common causes include impaired respiratory drive (eg, due to toxins, CNS disease), and airflow obstruction (eg, due to asthma, COPD [chronic obstructive pulmonary disease], sleep apnea, airway edema).
What is CO2 in blood work?
A CO2 blood test measures the amount of carbon dioxide (CO2) in the blood serum, which is the liquid part of blood. A CO2 test may also be called: a carbon dioxide test. a TCO2 test.
How do you know if its acidosis or alkalosis?
Examine the pH level.
Below-normal pH levels (less than 7.35) indicate acidosis, and higher-than-normal pH levels (more than 7.45) indicate alkalosis.
How does increased CO2 cause acidosis?
Respiratory acidosis is a condition that occurs when the lungs can’t remove enough of the carbon dioxide (CO2) produced by the body. Excess CO2 causes the pH of blood and other bodily fluids to decrease, making them too acidic.
What is a normal ABG reading?
An acceptable normal range of ABG values of ABG components are the following, noting that the range of normal values may vary among laboratories and in different age groups from neonates to geriatrics: pH (7.35-7.45) PaO2 (75-100 mmHg) PaCO2 (35-45 mmHg)
What are normal VBG results?
TABLE I: Arterial and venous blood gas reference range
|pCO2 (kPa)||4.7 – 6.0||5.5 – 6.8|
|pCO2 (mmHg)||35 -45||41 – 51|