A patient who was found face down in a pond is unresponsive, apneic, and pulseless. Friends state that the patient was hot and wanted to take a summer's swim in the pond. Which one of the following should be included in your care of this patient?
A) Hyperventilation with a bag-valve mask and high-concentration oxygen
B) Positive pressure ventilations at 10–12 per minute with oxygen
C) Position in a prone position to evacuate water from the lungs
D) Application of the AED with the delivery of no more than one shock
B
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What is the rule for determining an equivalent for calculating the normality of a base or salt solution?
A) An equivalent is the number of hydrogen atoms present in the base or salt. B) An equivalent is the number of hydrogen ions with which it can theoretically combine. C) An equivalent is the total number of hydroxide (OH-) groups divided by the number of hydrogen atoms present. D) An equivalent is the total number of positively charged ions present in the molecule.
Which of the following is true regarding proportional systematic errors?
A) The slope and the x-intercept of the regression line are affected. B) The slope of the regression line differs from the true value. C) The x-intercept of the regression line becomes equal to the y-intercept. D) The y-intercept of the regression line differs from the true value.