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What Is The Value For Metabolic Acidosis?

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Acid Base Disorders

Arterial blood gas analysis is used to determine the adequacy of oxygenation and ventilation, assess respiratory function and determine the acid–base balance. These data provide information regarding potential primary and compensatory processes that affect the body’s acid–base buffering system. Interpret the ABGs in a stepwise manner: Determine the adequacy of oxygenation (PaO2) Normal range: 80–100 mmHg (10.6–13.3 kPa) Determine pH status Normal pH range: 7.35–7.45 (H+ 35–45 nmol/L) pH <7.35: Acidosis is an abnormal process that increases the serum hydrogen ion concentration, lowers the pH and results in acidaemia. pH >7.45: Alkalosis is an abnormal process that decreases the hydrogen ion concentration and results in alkalaemia. Determine the respiratory component (PaCO2) Primary respiratory acidosis (hypoventilation) if pH <7.35 and HCO3– normal. Normal range: PaCO2 35–45 mmHg (4.7–6.0 kPa) PaCO2 >45 mmHg (> 6.0 kPa): Respiratory compensation for metabolic alkalosis if pH >7.45 and HCO3– (increased). PaCO2 <35 mmHg (4.7 kPa): Primary respiratory alkalosis (hyperventilation) if pH >7.45 and HCO3– normal. Respiratory compensation for metabolic acidosis if pH Continue reading >>

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Popular Questions

  1. Nathaniel Teng

    Metabolic Acidosis

    Hyperkalemia

    Medicine and Healthcare



    What are hyperkalemia and metabolic acidosis?




    1 Answer







    Hyperkalemia = high potassium levels in the blood. Commonly due to renal failure- kidneys not able to get rid of potassium so it builds up in your body. Hyperkalemia can be fatal because it causes heart arrhythmias including ventricular fibrillation.

    Metabolic acidosis is also a result of renal failure and is due to the kidneys not being able to excrete enough acid. Normally the pH of your blood is 7.35–7.45, so anything below 7.35 is considered ‘acidosis'. Metabolic in this case simply means caused by the kidneys, as opposed to ‘respiratory' acidosis which is due to airway obstruction and not being able to breathe out enough CO2

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