In frostbite management, which blister type is considered less favorable?

In frostbite management, which blister type is considered less favorable?

• A. Clear blebs
• B. Pustular blebs
• C. No blisters
• D. Hemorrhagic blebs

Answer: (D)

Frostbite depth is reflected by blister type. When a blister is hemorrhagic, the fluid is blood-filled because freezing damage has ruptured deeper blood vessels, signaling more extensive tissue injury. That deeper injury means a higher risk of tissue necrosis, infection, and later need for surgical intervention, making this blister finding less favorable. Clear blebs, by contrast, indicate superficial involvement with better healing potential, while no blisters or pustular blisters point to different injury patterns and do not carry the same implication of deep tissue damage. So hemorrhagic blebs suggest more severe frostbite and a more guarded prognosis.

Frostbite depth is reflected by blister type. When a blister is hemorrhagic, the fluid is blood-filled because freezing damage has ruptured deeper blood vessels, signaling more extensive tissue injury. That deeper injury means a higher risk of tissue necrosis, infection, and later need for surgical intervention, making this blister finding less favorable. Clear blebs, by contrast, indicate superficial involvement with better healing potential, while no blisters or pustular blisters point to different injury patterns and do not carry the same implication of deep tissue damage. So hemorrhagic blebs suggest more severe frostbite and a more guarded prognosis.