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Exam & Evaluation (Interpretation of ABGs: A FOUR STEP METHOD )
 
Questions: Please respond to following statements.

1 PaO2 is the total oxygen content in the blood.
True     False
2 An example of a V-Q shunt is:
  A tube with one end in the brain and the other in the abdomen
  low tidal volume
  normal alveolar O2, but low blood O2
  A small flat-bottom boat
3 Carboxyhemoglobin carries the same amount of oxygen as oxyhemoglobin.
True     False
4 Ventilation means:
  Breathing pure oxygen
  Moving air in and out of the lungs
  Always getting enough oxygen in the blood
  All of the above
5 Low pH is:
  Alkalosis
  Acidosis
6 pH is expressed in:
  mg/ml
  PPM
  mg/dl
  no units
7 Ventilation controls the:
  Oxygen saturation
  PaCO2 level
  Hyperactive child
  All of the above
8 CO2 in water:
  Lowers pH
  Is an acid
  Neutralizes high bicarb
  All of the above
9 Bicarbonate is:
  A base
  An acid
10 The metabolic mechanism controls bicarb.
True     False
11 A high bicarbonate level:
  Raises pH
  Lowers pH
  Is neutral
  All of the above
12 Low pH can be caused by:
  abnormal bicarb
  abnormal carbon dioxide
  each of the above
  none of the above
13 All abnormal values must be corrected.
True     False
14 Treatment of respiratory alkalosis consists of:
  increasing depth and rate of ventilation
  decreasing depth and rate of ventilation.
  administering sodium bicarbonate.
  None of the above
15 If you treat the cause, the compensatory mechanism should correct itself.
True     False
16 ABGs:
  Give all the answers about oxygenation
  Give no useful information.
  Should be ignored.
  None of the above
17 If the pH is 7.23 and the PaCO2 is 50, what is the likely diagnosis?
  respiratory acidosis
  respiratory alkalosis
  metabolic acidosis
  metabolic alkalosis
18 If the pH is 7.49 and the PaCO2 is 25, what is the likely diagnosis?
  respiratory acidosis
  respiratory alkalosis
  metabolic acidosis
  metabolic alkalosis
19 You know the pH is 7.56 and the HCO3 is 38, what is the likely diagnosis?
  respiratory acidosis
  respiratory alkalosis
  metabolic acidosis
  metabolic alkalosis
20 If the pH is 7.20, the PaCO2 is 25, and the HCO3 is 9, what is the likely diagnosis?
  partially compensated respiratory acidosis
  partially compensated respiratory alkalosis
  partially compensated metabolic acidosis
  partially compensated metabolic alkalosis
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