Explain why COPD patients benefit from a reduced tidal volume setting.
What will be an ideal response?
COPD patients have reduced expiratory flow rates due to decreased alveolar elastic recoil. For this reason, a longer expiratory time is needed for complete exhalation. If there is not enough time for complete exhalation, air trapping, V/Q mismatch, hypoxemia, and hypercapnia may result. Decreasing the tidal volume by 100 to 200 mL in COPD patients reduces the expiratory time requirements and helps to prevent air trapping. A higher flow rate may also be used to shorten the inspiratory time and lengthen the expiratory time for COPD patients.
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a. 20 b. 30 c. 40 d. 50
Drugs that dilate the pupils are called:
A) Ophthalmic. B) Dilative. C) Cycloplegic. D) Mydriatic.
When a new patient comes to the office for the first time, which document should be completed first?
A) demographic form B) PHI authorization form C) patient registration form D)admit form
Select an ICD-9-CM code for splenic atrophy