A nurse is caring for a light-skinned patient with chronic obstructive pulmonary disease (COPD). When assessing the patient's nail beds, the nurse notices that they are a dusky-blue color. This is indicative of which of the following?
A) Pallor
B) Cyanosis
C) Erythema
D) Jaundice
Ans: B
Feedback: Cyanosis results from an increased amount of unoxygenated hemoglobin. It produces a dusky blue skin tone in a light-skinned person. Refer to Table 55-2 for a discussion of pallor, erythema, and jaundice.
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