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Metabolic Acidosis Compensation

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4.2 Respiratory Acidosis - Causes

Acid-Base Physiology The arterial pCO2 is normally maintained at a level of about 40 mmHg by a balance between production of CO2 by the body and its removal by alveolar ventilation. If the inspired gas contains no CO2 then this relationship can be expressed by: paCO2 is proportional to VCO2 / VA where: VCO2 is CO2 production by the body VA is Alveolar ventilation An increase in arterial pCO2 can occur by one of three possible mechanisms: Presence of excess CO2 in the inspired gas Decreased alveolar ventilation Increased production of CO2 by the body CO2 gas can be added to the inspired gas or it may be present because of rebreathing : Anaesthetists are familiar with both these mechanisms. In these situations, hypercapnia can be induced even in the presence of normal alveolar ventilation and normal carbon dioxide production by the body. An adult at rest produces about 200mls of CO2 per minute: this is excreted via the lungs and the arterial pCO2 remains constant. An increased production of CO2 would lead to a respiratory acidosis if ventilation remained constant. The system controlling arterial pCO2 is very efficient (ie rapid and effective) and any increase in pCO2 very promptly re Continue reading >>

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Popular Questions

  1. Liam "Lewy" Shepherd

    Testing blood sugar levels will help in managing hyperglycemia. People who take insulin may be able to take additional insulin. However, only take additional insulin if your doctor is happy for you to do so, as miscalculations could lead to dangerously low blood sugar levels.
    Diabetes UK advise people with type 1 diabetes to test for ketones if blood glucose levels rise above 15 mmol/l or the signs of ketoacidosis appear. Contact your health team if high levels of ketones are present.

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  2. Al Klein

    It depends on the cause.
    If it's due to pancreatic cancer, the way any cancer is treated. And insulin, if your pancreas has stopped producing insulin.
    If it's type 1, usually with insulin, diet and exercise.
    If it's type 2, usually with oral medication, diet and exercise. (The big thing with type 2 is to lose weight - slowly.) Although some type 2 diabetics have to use insulin also.

  3. Brandy Weddel

    This answer is for hypoglycemia, someone merged my question and and when I unmerged it, it ended up here. Tags about hypo, question about hyper? Doesn't make sense - sorry for the seemingly incorrect answer. Thanks to Al for pointing it out to me.
    For HYPO: Sugar. If the person is conscious, often the first choice for replenishment is something like orange juice or peanut butter. If unconscious, then IV glucose is given as quickly as possible.

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