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Lung Diffusing Capacity: Adult and Pediatric

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1.  What are some methods available for DLCO testing?
  1. Intra-breath technique
  2. Steady-state technique
  3. Single-breath technique
  4. All of the above
2.  Which of the following is the transfer gas used to measure DLCO?
  1. Carbon Monoxide
  2. Zinc
  3. Nitrogen
  4. Sodium
3.  Which of the following can affect the quality of the DLCO test?
  1. Improperly calibrated equipment
  2. Performance technique
  3. Abnormal hemoglobin
  4. All of the above
4.  What is the normal value range for DLCO?
  1. Between 10-15 ml/min/mmHg
  2. Between 20-30 ml/min/mmHg
  3. Between 40-50 ml/min/mmHg
  4. Between 60-70 ml/min/mmHg
5.  Which of the following may cause the DLCO value to INCREASE?
  1. Left to right shunt
  2. Emphysema
  3. Pulmonary emboli
  4. Anemia

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