Chapter 24.txt

  1. Hematocrit
    the separation of blood and is the amount of blood cells in relation to the plasma; decreased in anemia and massive blood loss but increased in dehydration and shock
  2. Hemoglobin
    Capacity of the blood to transport O2 from the lungs to the tissues; drops when there is internal bleeding
  3. Food and drink are usually withheld for ____ hours prior to blood chemistry tests
    8-12
  4. Midstream urine specimen
    external genetalia are cleaned, a small amount of urine is passed, and the midportion of the voiding is collected in a sterile container
  5. Metformin must be discontinued if patient is having CT scan because
    it can significantly alter renal function
  6. Colonoscopy pre-surgery requirements
    clear liquid diet for 24-48 hours, NPO 8 hours, particular diet 3 days before test, bowel cleansing 24 hours before the test
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Chapter 24.txt
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