Blood pH and Acid-Base Balance Quiz
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Questions and Answers

What is the expected normal range for human blood pH?

  • 6.9 to 7.8
  • 7.2 to 7.6
  • 7.35 to 7.45 (correct)
  • 6.5 to 8.0

    • Which of the following processes helps maintain blood pH homeostasis?

  • Carbonic acid regulation by the lungs
  • Bicarbonate regulation by the kidneys
  • Chemical buffers like lactic acid and proteins
  • All of the above (correct)

    • What happens if blood pH goes below 6.9?

  • Death can occur (correct)
  • Nothing, it's still in the normal range
  • Acidosis occurs
  • Alkalosis occurs

    • Which groups are most at risk for decompensation due to abnormal blood pH?

    <p>Both A and B</p> Signup and view all the answers

    What laboratory test is used to interpret acid-base balance in the body?

    <p>Arterial blood gas (ABG)</p> Signup and view all the answers

    What does PaCO2 indicate in an arterial blood gas analysis?

    <p>The respiratory component of acid-base balance</p> Signup and view all the answers

    What is the expected range for HCO3– (bicarbonate) in a normal arterial blood gas analysis?

    <p>21 to 28 mEq/L</p> Signup and view all the answers

    In respiratory disorders, how do the pH and PaCO2 levels change in relation to each other?

    <p>They change in opposite directions</p> Signup and view all the answers

    What does an increase in acidity of the blood indicate?

    <p>A decrease in pH level</p> Signup and view all the answers

    What is the first step in interpreting an arterial blood gas analysis?

    <p>Look at the pH to see if it is within the expected range</p> Signup and view all the answers

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