Urology Book


Urine Ketone

Aka: Urine Ketone
  1. Mechanism
    1. Dipstick detects acetic acid (Acetoacetate)
      1. In Diabetic Ketoacidosis, Beta-Hydroxybutyrate (primary Ketone) is converted to Acetoacetate
    2. Confirmatory Test
      1. Urine
        1. Acetest tablet test
      2. Blood (preferred)
        1. Beta-Hydroxybutyrate
          1. Best Ketone test
        2. Basic chemistry panel
          1. Ketoacidosis
            1. Low serum bicarbonate
            2. Increased Anion Gap
          2. Normal or resolving Ketoacidosis
            1. Normal serum bicarbonate
            2. Normal Anion Gap
  2. Interpretation: Normal
    1. Negative
  3. Causes: Positive
    1. Dehydration
    2. Starvation or Low Carbohydrate Diets
    3. Diabetic Ketoacidosis (DKA)
    4. Alcoholic Ketoacidosis
    5. Isopropanol toxicity
    6. Pregnancy
  4. Causes: False PositiveKetones on Urinalysis
    1. Low Urine pH (acidic)
    2. Increased Urine Specific Gravity
    3. Phenolphthalein
    4. Levodopa
  5. Causes: False NegativeKetones on Urinalysis
    1. Delayed urine exam

You are currently viewing the original 'fpnotebook.com\legacy' version of this website. Internet Explorer 8.0 and older will automatically be redirected to this legacy version.

If you are using a modern web browser, you may instead navigate to the newer desktop version of fpnotebook. Another, mobile version is also available which should function on both newer and older web browsers.

Please Contact Me as you run across problems with any of these versions on the website.

Navigation Tree