Laboratory Values

by Jill Beavers-Kirby

Questions about the lecture
My Notes
  • Required.
Save Cancel
    Learning Material 2
    • PDF
      Slides Laboratory Values Beavers-Kirby.pdf
    • PDF
      Download Lecture Overview
    Report mistake
    Hi, my name is Jill Beavers-Kirby and today we are going to be talking about some lab values that you are going to find on your NCLEX exam. We are not going to talk about every single lab value, just the most common ones that are on the test. So the first one is the electrolytes. We are going to talk about potassium first. So potassium is the most common intracellular ion. You find potassium in every single cell. Normal potassium values are 3.5 to 5.0 mEq/L. Why do we need potassium? Well it keeps our muscles contracting the way they should, keeps our heart beating the way it should and it helps with nerve conduction. So what is hypokalemia? That is any potassium level that is less than 3.5 mEq/L. What causes hypokalemia? Well we lose a lot of electrolytes in our body fluids. So any time we have vomiting, nausea, diarrhea or if somebody is undergoing gastric suctioning. You usually see this when somebody has had surgery and they are hooked up to NG tube, which is the nasogastric tube, that goes down into their nose. And sometimes you have the suction of the extra bile and extra stomach fluids after surgery to help the patient feel better. You got to keep in the back your mind that you are suctioning out the electrolytes. So what are symptoms of low potassium? The same symptoms that are symptoms for pretty much everything else in medicine, nausea, vomiting and diarrhea. However with potassium you may also see an irregular heartbeat. You can feel this when you check somebody's radial pulse or if they're hooked up to a cardiac monitoring, you might see some little extra beats in there that don't belong. So how do we treat low potassium? Well if...

    About the Lecture

    The lecture Laboratory Values by Jill Beavers-Kirby is from the course Physiological Integrity. It contains the following chapters:

    • Laboratory Values
    • Electrolyes - Potassium - Hyperkalemia
    • Electrolyes - Sodium - Hypernatremia
    • Electrolytes - Calcium
    • Electrolyes - Magnesium
    • Complete Blood Count (CBC)
    • Arterial Blood Gas (ABG)
    • Coagulation Times

    Included Quiz Questions

    1. Potassium
    2. Chloride
    3. Sodium
    4. Carbon dioxide
    1. To regulate body temperature
    2. Signals muscles to contract
    3. Enables nerves to respond to stimuli
    4. Help regulate fluids
    1. 59 year-old with diaphoresis, pneumonia, and high fever
    2. 25 year-old with leukemia who is receiving chemotherapy
    3. 50 year-old with congestive heart failure who is taking Lasix
    4. 30 year-old with nausea, vomiting, and diarrhea
    1. 65 seconds
    2. 50 seconds
    3. 35 seconds
    4. 30 seconds

    Author of lecture Laboratory Values

     Jill Beavers-Kirby

    Jill Beavers-Kirby

    Customer reviews

    5,0 of 5 stars
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1  Star