Which of the following FEV1 values indicates severe compromise of expiratory airflow that may contraindicate the use of mucoactive therapy?
a. Less than 65%
b. Less than 55%
c. Less than 35%
d. Less than 25%
ANS: D
Generally, if the FEV1 is less than 25% of predicted, it becomes difficult to mobilize and expec-torate secretions.
Health Professions
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Which of the following is a contraindication to the use of dextrose 50%?
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