The wavelength that is most efficient in producing skin pigmentation is

A) 244 nm B) 264 nm C) 274 nm D) 254 nm

D

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One large box on the ECG paper indicates:

A) 0.20 seconds. B) 0.04 seconds. C) 2 seconds. D) 4 seconds.

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The left side of a patient's heart is in severe failure, causing blood to back up behind it. Which sign or symptom are you most likely to observe first?

A) Swelling in the feet B) Decreased respirations C) Bone pain in the legs D) Crackles in the lungs

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