MCRT
| Description: | MCRT- Gas diffusion tests |
| Category: | Respiratory Therapy |
| Created by: | smiddleton on 2009-05-14 |
| Question | Answer |
| Why is carbon monoxide used to measure the diffusing capacity? | combines faster with Hb |
| All of the following factors would account for a decreased DLco in the absence of pulmonary disease | decreased Hb, increased carboxyhemoglogin, decreased capillary blood volume |
| What is the only obstructive lung disease with a decreased DLco? | emphysema |
| What is the normal value for DLco? (include correct units) | 25 mlCO/min/mmHg |
| Briefly describe how you would coach a patient to perform a DLco test | 1. blow everthing out (RV) 2. take as deep a breath as possible 3. hold breath for 10 seconds 4. exhale forcefully and completely |
| A single breath DLco test would require which gases? | 0.3% CO and an Inert gas |
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