Trick of the Trade: DIY Skyhook for Upper Extremity Swelling

A 25 year-old male presents to the ED complaining of left upper extremity pain, redness, and swelling. His cat bit him 2 days ago and his symptoms started today. On exam he has impressive induration, erythema, and warmth to the dorsum of the hand and forearm. He is neurovascularly intact and able to range his joints freely. In addition to IV antibiotics, you would like to keep his arm elevated while in the hospital. What is an easy and simple way help ensure that this patient keeps his arm elevated?
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