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How Do You Know If Its Respiratory Or Metabolic Acidosis?

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Abg Interpretation

Arterial blood gas (ABG) interpretation is something many medical students find difficult to grasp (we’ve been there). We’ve created this guide, which aims to provide a structured approach to ABG interpretation whilst also increasing your understanding of each results relevance. The real value of an ABG comes from its ability to provide a near immediate reflection of the physiology of your patient, allowing you to recognise and treat pathology more rapidly. To see how to perform an arterial blood gas check out our guide here. If you want to put your ABG interpretation skills to the test, check out our ABG quiz here. Normal ranges pH: 7.35 – 7.45 PaCO2: 4.7-6.0 kPa PaO2: 11-13 kPa HCO3-: 22-26 mEg/L Base excess: -2 to +2 mmol/L Patient’s clinical condition Before getting stuck into the details of the analysis, it’s important to look at the patient’s current clinical status, as this provides essential context to the ABG result. Below are a few examples to demonstrate how important context is when interpreting an ABG. A normal PaO2 in a patient on high flow oxygen – this is abnormal as you would expect the patient to have a PaO2 well above the normal range with this leve Continue reading >>

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Popular Questions

  1. Liang-Hai Sie

    Diabetic ketoacidosis is a life threatening condition, due to lack of insulin serious acidosis, high blood sugars causing loss of fluid because of peeing a lot causing life threatening dehydration, low blood pressure, acute kidney failure etc. etc., while not eating causing ketosis doesn’t have all above mentioned problems, just ketones due to low carbs.

  2. Michael L. Jirka

    Muslims probably have a degree of ketosis from fasting for a month of Ramadan and they seem to do OK. Generally, ketones rise when you force your body to burn fats as an alternate source of energy. It is just not as efficient as clean burning GLUCOSE … our main energy source. The byproducts of using fats for energy are ketones (acetone) and acids (beta-hydroxybutyric acid and acetoacetic acid). If you are in firm grasp of what you are doing this for (body sculpting or puke and purge party for the play about the Holocaust or marathon training) then a short lived trip to Ketosis Land might be all right. IF YOU ARE DOING THIS BECAUSE YOUR MIND CAN SEE ONLY A FAT PIG IN THE MIRROR … get some help … My favorite singer of the past century, Karen Carpenter, died from anorexia … and my life lost some of it’s luster at her passing.

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