Which of the following is NOT one of the 5 P's of compartment syndrome?

• A. Pain
• B. Pulselessness
• C. Palpability
• D. Paresthesia

Answer: (C)

In the context of assessing compartment syndrome, the 5 P's are critical for clinical diagnosis and include pain, pulselessness, pallor, paresthesia, and paralysis. Each of these signs indicates a disruption of blood flow and nerve function due to elevated pressure within a compartment of the muscle.

Pain is often the first and most prominent symptom, described as severe, disproportionate, and not relieved by usual pain management measures. Pulselessness refers to the absence of a pulse in a distal artery due to compromised blood flow. Paresthesia entails tingling or altered sensation, indicating nerve compromise. Paralysis indicates severe impairment in motor function, often seen in advanced cases of compartment syndrome.

Palpability, while relevant in physical examinations to assess muscle tone and detect swelling, is not officially one of the critical 5 P's associated with compartment syndrome. It does not specifically address the condition’s implications on nerve and vascular integrity, which is essential for identifying and managing compartment syndrome promptly.