When obtaining a history of a 5-year-old boy with generalized hypothermia, which one of the following questions should be asked first?
A) "Are all of his childhood shots up to date?"
B) "How long was he out in the cold?"
C) "When did he eat or drink last?"
D) "Why was he outside without adult supervision?"
B
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Soon after endotracheal tube extubation, an adult patient exhibits a high-pitched inspiratory noise, heard without a stethoscope. Which of the following actions would you recommend?
a. STAT-heated aerosol treatment with saline b. STAT racemic epinephrine aerosol treat-ment c. Careful observation of the patient for 6 hr d. Immediate reintubation via the nasal route
After the addition of reagents for the nitrate test, the tube remains colorless. To determine if the organism reduced nitrates to nitrogen gas, you must now add
A) TTC. B) zinc dust. C) 10% ferric chloride. D) nothing–the test is complete.
When the eyeball is shorter than normal from front to back, this is called?
A) ?hyperopia. B) ?astigmatism. C) ?myopia. D) ?presbyopia.
When a neuron generates an electrical impulse, it first sends the signal:
A) along its axon to the axon terminal. B) to the cell's nucleus via a dendrite. C) via neurotransmitters at the synapse. D) to the cell's dendrites simultaneously.