In severe cases, varicose veins can ________
a. rupture
b. form open scores
c. both a and b
d. neither a nor b
c
Health Professions
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The harsh, crowing sound of stridor is an indication of:
A) lower airway obstruction. B) alveolar airway obstruction. C) bronchial airway obstruction. D) upper airway obstruction.
Health Professions
Which gas is used to test the physiologic effectiveness of the alveolary-capillary membrane?
a. N2O c. CO b. O2 d. CO2
Health Professions