Which of the following statements about Neisseria meningitidis is TRUE?
A) The vaccine is recommended for health care workers.
B) It is the bacteria that most often causes serious cases of meningitis.
C) It is responsible for 90 percent of patients with a viral meningitis.
D) Signs and symptoms of infection can take weeks to develop.
Answer: B) It is the bacteria that most often causes serious cases of meningitis.
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Contraindications for using positive end expiratory pressure (PEEP) in conjunction with mechan-ical ventilation include which of the following?
1. Untreated bronchopleural fistula 2. Chronic airway obstruction 3. Untreated pneumothorax a. 1 and 2 only b. 1 and 3 only c. 2 and 3 only d. 1, 2, and 3
The amount of material that will reduce the intensity of the primary beam to one-half its original value is the
a. half-value layer. b. radioactive half-life. c. aluminum equivalency. d. HVL/keV ratio.