Final answer:
The nurse would document a double pulse in the carotid artery as pulses bisferiens, indicating two peaks per cardiac cycle.
Step-by-step explanation:
After assessing the carotid artery and finding a double pulse, the condition that the nurse would document is pulses bisferiens. This type of pulse is characterized by the presence of two peaks per cardiac cycle on palpation. It can be associated with certain cardiac conditions, such as hypertrophic cardiomyopathy or aortic regurgitation. No other options listed reflect a double peak in the pulse contour.