You have been called for a patient who complains of shortness of breath. On scene, you find the 41-year-old woman sitting upright in bed with nasal flaring and wheezing. A metered-dose inhaler (MDI) is lying on the nightstand next to her. To assist her with the MDI, which criteria must be met?
A) The MDI must be prescribed for the patient
B) The pulse oximeter reading must be less than 90%
C) High-concentration oxygen must be administered first for 5 minutes
D) The patient must display altered mental status
A) The MDI must be prescribed for the patient
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Which is true of the biphasic hemolysin usually associated with paroxysmal cold hemoglobinuria (PCH)?
a. Anti-P that binds to red blood cells at body temperature but activates complement at cool temperatures b. Anti-P that binds to red blood cells at cool temperatures but activates complement at body temperature c. Anti-P1 that binds to red blood cells at body temperature but activates complement at cool temperatures d. Anti-P1 that binds to red blood cells at cool temperatures but activates complement at body temperature
Complementary and alternative medicine does NOT involve which of the following?
A) special diets B) nutritional supplements C) FDA-approved medications D) herbal therapies
All the following are indications for the use of local anesthesia except:
A. drainage of abscesses B. biopsies C. to produce surgical anesthesia D. vasectomy
A retraction cord that is packed vertically to expose the prepared margin is sufficient for the bulk of impression material to flow around the margin
a. True b. False Indicate whether the statement is true or false