Which of the following does not describe intermittent claudication?

C. Is often worse at night.

DISCUSSION: Intermittent claudication characteristically is elicited by a relatively reproducible amount of exercise, and it is promptly relieved by cessation of that exercise. Furthermore, it is usually felt in a defined muscle group such as the calf muscles. Rest pain, indicating impending limb loss, is felt in the toes and forefoot as opposed to a muscle group, and this pain often begins at night. Claudication, when sufficiently disabling, may be an indication for revascularization, particularly if it interferes with gaining a livelihood.