If a low-land resident ascends to a high mountain altitude, which of the following would be stimulated first?
A. peripheral chemoreceptors due to drop in PaCO2
B. peripheral chemoreceptors due to drop in PaO2
C. central chemoreceptors due to increase in H+ in CSF
D. central chemoreceptors due to drop in PaO2
Answer: B
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Which of the following is true regarding proper hand cleaning?
A) If the EMT's hands are visibly dirty, an alcohol-based hand cleaner is not sufficient. B) Soap and water should be used following any patient contact if the EMT does not wear gloves. C) Following patient contact, the EMT should soak his hands in warm soapy water for at least 30 seconds and then shake them vigorously. D) In cases where soap and water and alcohol-based hand cleaners are not immediately available, bleach wipes should be used.
Opportunistic fungal infections are typically caused by which of the following?
a. Pneumocystis ca-rinii c. Histoplasma cap-sulatum b. Aspergillus fumiga-tus d. Haemophilus hae-molyticus
If the term "____________________" is included in the order, then the drug must be a solution that is to be infused intravenously and the drip factor of the intravenous administration set must be included in the calculation.
Fill in the blank(s) with the appropriate word(s).
This type of study occurs over long periods of time and the same group of subjects is followed over extended periods at multiple times throughout the study period:
A. Retrospective study B. Prospective study C. Cross-sectional study D. Longitudinal study