A peripheral arterial occlusive disease in which intermittent attacks are triggered by cold or stress.

A peripheral arterial occlusive disease in which intermittent attacks are triggered by cold or stress.

• A. Pernicious anemia
• B. Raynaud's disease
• C. Phlebitis
• D. Ileum

Answer: (B)

This describes Raynaud's phenomenon, a vasospastic disorder of the small arteries in the fingers and toes. When exposed to cold or emotional stress, these arteries constrict excessively, causing intermittent ischemia. The classic sequence is pale (white) due to reduced blood flow, then blue from deoxygenated blood, and finally red as blood flow returns, often with numbness or tingling. This fits a peripheral arterial occlusive process driven by vasospasm rather than a fixed blockage. Pernicious anemia is a deficiency-related blood disorder, not a vasospastic arterial problem. Phlebitis is inflammation of veins, not arteries. Ileum is a portion of the small intestine and unrelated to arterial occlusion.

This describes Raynaud's phenomenon, a vasospastic disorder of the small arteries in the fingers and toes. When exposed to cold or emotional stress, these arteries constrict excessively, causing intermittent ischemia. The classic sequence is pale (white) due to reduced blood flow, then blue from deoxygenated blood, and finally red as blood flow returns, often with numbness or tingling. This fits a peripheral arterial occlusive process driven by vasospasm rather than a fixed blockage.

Pernicious anemia is a deficiency-related blood disorder, not a vasospastic arterial problem. Phlebitis is inflammation of veins, not arteries. Ileum is a portion of the small intestine and unrelated to arterial occlusion.