You have been caught in a flash flood and have underestimated the depth of the water and the strength of the current. As you float downstream, you notice a partially submerged tree in the water. Which of the following approaches should you take?
A) Relax your body and let the current carry you.
B) Try to swim over to the tree.
C) See if you can touch your feet on the ground to steady yourself.
D) Try to dive under the tree.
Question 2
Without adequate airway maintenance and ventilation, the patient can succumb to brain injury or death in how many minutes?
A) 4
B) 10
C) 6
D) 12
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According to Table 17.1, which will reduce water but not Mg2+?
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