Emphysema, a degenerative disease, is caused by:
A. surfactant destruction and increased alveolar surface tension.
B. excessive mucous production by beta2 cells in the bronchi.
C. widespread constriction of the bronchioles and air trapping.
D. decreased alveolar surface tension caused by excess surfactant.
Answer: A. surfactant destruction and increased alveolar surface tension.
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Which of the following is NOT used by pharmacy technicians use to solve dosage calculations?
A) Ratios and proportions B) Keeping like units consistent C) Cross-multiplying D) SIG code refreshing
Which of the following statements regarding the communication system in an area of refuge is MOST accurate?
A) Areas of refuge are only required to have a communication system in high-rise buildings where rescue may be delayed. B) The interior area of refuge must contain adequate instructions on the use of the communication system. C) Codes require communication systems be designed to accommodate only persons with mobility disabilities. D) The communication system must be connected to the fire command center so instructions may be given to those awaiting rescue.
____ is a disorder of the autonomic nervous system that enhances sinus automaticity.
A. Dysautonomia B. Sinusautonomia C. Inappropriate sinusautonomia D. Hypoxiautonomia
Cost analysis studies are usually performed to
A) increase patient satisfaction and return rate B) decrease use of expensive medications C) estimate total cost and compare advantages of two or more systems D) evaluate and improve current system