In normal aging there is a decline is the concentration of which of the following?

a. Dopamine
b. Serotonin
c. Norepinephrine
d. All of the above

d

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________ are round bacteria that are arranged in various configurations

a. Protozoa b. Viruses c. Streptococci d. Cocci

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A patient with a nasal cannula set to deliver 8 L/min of oxygen would be expected to report which of the following? 1. Dry, nonproductive cough 2. Increased work of breathing 3. Substernal pain 4. Thick, dehydrated secretions

a. 1, 2, and 3 c. 2 and 4 b. 1 and 3 d. 1, 2, 3, and 4

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