What Lab Values Indicate Dka?

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Lab Test

Measurement of beta-hydroxybutyrate in whole blood, serum, or plasma to evaluate ketone-producing metabolic energy deficits that usually occur when there is insufficient carbohydrate metabolism, thereby increasing the catabolism of fatty acids. Clinical Application Common tests for ketone bodies, such as Acetest, Chemstrip, and Ketostix, do not detect beta-hydroxybutyrate. A handheld meter sensor system is available to monitor beta-hydroxybutyrate and glucose levels. Elevated levels beta-hydroxybutyrate is diagnostic of ketoacidosis, whereas the absence of concomitant hyperglycemia supports the diagnosis of alcoholic ketoacidosis (AKA). Levels ³ 3 mmol/L are indicative of ketoacidosis. In very severe diabetic ketoacidosis (DKA), the beta-hydroxybutyrate serum concentration may exceed 25 mmol/L. Patients presenting with isopropanol intoxication can present with high acetone levels without any acidosis, anion gap or abnormal glucoses levels. Plasma (lithium-heparin or fluoride-oxalate), serum, or perchloric acid (PCA) extracts can be analyzed. EDTA-plasma samples will produce values that are 60% lower than specimens preserved with fluoride-oxalate or PCA. Continue reading >>

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Popular Questions

  1. TheCommuter

    You can post this question on this site's Nursing Student Assistance Forums and perhaps get an answer. One of our frequent users, Daytonite, loves to give detailed answers to these types of questions.

  2. ICRN2008

    Here is the formula for anion gap:
    Agap = Na + K - Cl -CO2
    I would think that the doctor would be monitoring the glucose level (not the agap) to determine when to stop the insulin drip. Anyone else have an idea?

  3. P_RN

    One of our wonderful members Mark Hammerschmidt has a great FREE MICU site:
    Check section 4.2
    It's all acidosis/alkalosis

  4. -> Continue reading
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