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Author Question: Hypoxia is best defined as a condition in which what occurs? a. Blood Hb levels are less than ... (Read 68 times)

audragclark

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on: Jul 16, 2018
Hypoxia is best defined as a condition in which what occurs?
 
  a. Blood Hb levels are less than normal (15 g/dl).
  b. The arterial PCO2 is greater than normal (45 mm Hg).
  c. The arterial PO2 is greater than normal (100 mm Hg).
  d. Tissue O2 delivery is inadequate to meet cellular needs.

Question 2

Which of the following are potential causes of hypoxia? 1. Decrease in arterial PO2 2. Decrease in available Hb 3. Decrease in cardiac output
 
  a. 1 and 2 only
  b. 1 and 3 only
  c. 2 and 3 only
  d. 1, 2, and 3


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Jane

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
When O2 delivery falls short of cellular needs, hypoxia occurs.

Answer to Question 2

ANS: D
Hypoxia occurs if (1) the arterial blood O2 content is decreased (hypoxemia), or (2) cardiac out-put or perfusion is decreased (shock or ischemia).


audragclark

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Reply #2 on: Jul 16, 2018
TY


Jane

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Reply #3 on: Jul 16, 2018
Happy to Help


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