There are ________ main coronary arteries in the heart.
A. two
B. four
C. six
D. five
Answer: A
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The common adult dosage of finasteride is:
A) 0.5 mg once daily. B) 5 mg once daily. C) 0.4–0.8 mg once daily. D) 10 mg once daily.
What will happen to cryogenic liquids trapped within a confining space?
A. Expand and become a flammability hazard B. Release into the atmosphere and create a visible fog C. Vaporize, expand, and cause violent pressure explosion D. Vaporize and dissipate into the atmosphere, causing an asphyxiation hazard
Which type of anesthesia desensitizes the mucosa for a brief period?
a. Local b. General c. Topical d. None of the above
A 44 year-old patient who suffered a cerebral vascular accident has been moved from Neuro-ICU to the step-down unit. He becomes diaphoretic and his SpO2 suddenly drops from 95% to 88% on a 32% tracheostomy collar. His heart rate is 115/min, respiratory rate is 42/min and his breath sounds are very diminished. The respiratory therapist is unsuccessful in attempting to pass a 12 Fr suction catheter. The therapist should
A. increase the suction pressure to 120 mm Hg. B. change to a 10 Fr suction catheter. C. replace the tracheostomy tube. D. orally intubate the patient.