Results of arterial blood test (ABG)


Gas test in the blood, commonly known as ABG, is carried out in the blood, which is removed from APRY A A> arteries .It is used to see how well the lungs work and determine the effectiveness of respiratory therapy, such as the use of the fan , cpap , bipap or oxygen.Gas in the blood can also reveal the presence of kidney problems, but it is generally not done to diagnose kidney problems.

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ABG is one of the most used tests previously Surgery , especially facing patients who have or suspect,There will be problems with breathing or pulmonary disease. It should be expected that the operation is long, or if the patient is in the fan for a long period of time. This allows personnel to know if the fan settings are suitable for the patient.

How to perform an arterial blood gas test

There are two ways to draw ABG: arterial line (special IV line, which is placed on the artery, which allows blood blood without a needle,As a story, when the line is in place) or needles and syringes to attract blood from the artery once.

The arterial blood drawing is more painful than the typical drawing of venous blood and is generally performed on the wrist or groin.After painting the blood pressure it can be kept in place for five minutes or more to avoid bleeding the artery.If the patient is expected to be in the fan for a long period of time, the arterial line is usually placed to avoid repeated painful arterial sticks.

The arterial line allows blood to handle the artery, without holding the patient with a needle every time. In addition, the arterial line allows a very precise blood pressure monitoring, which is continuous.

Components, estimated by blood blood tests

ABG Look at five different components of blood blood:

  • pH : arterial blood pH must be 7,35 to 7.45. Significant changes in pH can indicate a threat to life problems that should be processed rapidly. The pH 6.9 is generally considered to be the low end of pulled pH changes.
  • Carbon dioxide (PCO2) : Determines whether your body can get rid of carbon dioxide accordingly or if the carbon dioxide body is held by the body.
  • Oxygen (PO2) : Determine if its light can move oxygen to your blood accordingly.
  • bicarbonate (HCO3)>: Low levels of bicarbonate in blood can indicate problems with kidney function.
  • : Measure on a scale of 0 to 100 This indicates how much oxygen does it to the tissues of the body. One hundred percent is perfect, and at the level of a healthy person is expected 97% or higher.The addition of oxygen may be necessary for a low saturation level.

ABG interpretation

The interpretation of the results of ABG is a complex process and requires strong clinical skills to take into account the general condition of the person. Something simple, as vomiting, can change the results, since a serious or life-threatening state of the lungs can lead to a change in ABG tests.

Under the hospital conditions, these results are used to make changes to the configuration in the fan or determine if the patient needs a patient in respiratory support with a fan or oxygen.The results may include:

  • Index of metabolic acidosis : characterized by low pH, low bicarbonate and low carbon dioxide, this condition can be caused by problems of kidney,Breathe too fast or breathe too deep.
  • Metabolic alkalosis : The increase of pH, bicarbonate and carbon dioxide generally indicate serious vows changed from chemistry with blood.
  • Respiratory acidosis of acidosis : low pH, high-carbon bicarbonate and high carbon dioxide often indicate the state of light, such as pneumonia or disease, as copd can indicate the need to change the fan,If the patient is in the fan.
  • Respiratory alkalosis : high pH, low level of bicarbonate and low carbon dioxide, as a rule, aims to breathe, which is too fast or too deep, like when painting pain o During hyperventilation.You can indicate the need to change the fan if the patient is in the fan.

Meds information word

The gas Arterial can be proof very useful, but the interpretation of this information is better to leave professionals.The results that will be alarming for a patient may be normal for the other, and these test results can vary widely from one hour to one hour according to respiratory interventions, which include the provision of oxygen or fan settings.

Your health care provider should be able to tell you if the results were expected and if the results indicate that the patient improves or requires more oxygen or even fan support.

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