A microbiologist sets up a set of decarboxylase tubes for identification of a glucose fermenting, gram-negative rod
After 24 hours, the tubes reveal
Base control: gray
Arginine: purple
Lysine: yellow
Ornithine: purple
These tubes should be interpreted as
A) all positive. B) positive for arginine and ornithine.
C) invalid. D) positive for lysine.
C
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The blood carried in the arteries contains ________
a. ammonia b. carbon monoxide c. oxygen d. bile
You have assisted in the delivery of a full-term infant by suctioning the mouth and nose as the head was delivered and again following complete delivery. The infant is not yet breathing. Which of the following is the correct sequence of interventions?
A) Rub the infant's back, tap the bottom of his foot, begin bag-valve-mask ventilations, and check the pulse. B) Begin bag-valve-mask ventilations, suction the airway with a rigid tonsil tip, and begin CPR. C) Transport without further intervention. D) Perform a series of back blows and chest thrusts interposed with mouth-to-mouth ventilation.