Stimulation of Beta 1 adrenergic receptors results in all of the following EXCEPT:
A) positive inotrophy.
B) positive dromotropy.
C) positive chronotropy.
D) negative automaticity.
D
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A patient, who was constructing a bomb in his basement, has sustained a secondary-phase blast injury. Which presentation would the EMT most likely observe from this blast phase?
A) Burns to the head, neck, and chest B) Headache and shortness of breath C) Screwdriver impaled in the thorax D) Complaint of nausea after inhaling fumes
Red blood cells are formed in ?
A) ?the spleen. B) ?the liver. C) ?red bone marrow. D) ?lymph nodes.
You and your partner are standing by at the scene of a structural fire when two firefighters carry a patient to you that they rescued from one of the rooms inside the house. The patient is not moving and has no obvious burns. You should:
A. apply 100% oxygen via a nonrebreathing mask and apply the pulse oximeter. B. determine if the patient's airway is patent and then assess ventilatory effort. C. insert an advanced airway device and begin positive-pressure ventilation. D. rapidly assess the patient for gross external bleeding and apply 100% oxygen.
Answer the following questions true (T) or false (F)
1. Legacy systems are typically reliable, but inflexible. 2. U.S. and European pilots are now trained to follow Traffic Collision Avoidance System (TCAS) instructions even if they conflict with instructions from an air traffic controller. 3. Redundancy and self-checking are often present in safety-critical systems.