An acid-fast bacillus is recovered from a bronchial washing on Lowenstein-Jensen medium after 18 days at 35°C with CO2. Initially the colonies are buff, raised, and rough when grown in the dark
After exposure to light, no change in pigmentation is noted. On examination at 10X magnification, the colonies reveal serpentine cording. Which of the following biochemical test reactions will confirm the identity of the most likely etiologic agent?
A) Niacin and nitrate positive B) Niacin positive and nitrate negative
C) Niacin negative and nitrate positive D) Niacin and nitrate negative
A
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Which one of the following best explains the reason why emergency services communications are recorded?
A) The state EMS agency will use the recording to determine if care was appropriate. B) The federal government requires that all communications be recorded. C) Communications can become part of a legal record if need be. D) The Federal Communications Commission reviews all recordings for communication appropriateness.
A young man riding a motorcycle was hit head on and ejected from the bike. Your scene size-up reveals him to be lying supine in the roadway with obvious deformity to his right thigh and left ankle, with blood noted on his pants in these areas. Patient assessment reveals he is unresponsive with snoring respirations and is breathing irregularly at 16 times per minute. His radial pulse is moderate
in strength, and his skin is warm and dry. Which one of the following actions should be performed first? A) Open the airway using the head-tilt, chin-lift. B) Expose and splint both legs to prevent further injury. C) Check for distal pulses in both lower extremities. D) Take and maintain manual in-line spinal stabilization.
Herpes simplex labialis is due to reactivation of a virus that resides in which of the following sites during latent periods?
a. Basement membrane of the lip b. Trigeminal ganglion c. Submucosal macrophages in the lip d. Epithelium of the vermilion e. None of the above
The ____________________ ventricle separates the right and left thalami
Fill in the blank(s) with correct word