An athletic patient presents to the ambulatory care facility complaining of pain in the right knee with weight bearing. He states that two days ago he ran 10 miles and woke up the next morning with knee pain
Upon examination, the nurse notes edema, tenderness, muscle spasms and, ecchymosis. Based upon these symptoms, the nurse anticipates the patient has experienced a:
A) First-degree strain
B) Second-degree strain
C) First-degree sprain
D) Second-degree sprain
Ans: B
Feedback: A second-degree strain involves tearing of muscle fibers and is manifested by notable loss of load-bearing strength with accompanying edema, tenderness, muscle spasm, and ecchymosis. A first-degree strain involves tearing of few muscle fibers and is accompanied by minor edema, tenderness, and mild muscle spasm, without noticeable loss of function. A first-degree sprain is caused by tearing of few ligamentous fibers and is manifested by mild edema, local tenderness, and pain that is elicited when the joint is moved, but there is no joint instability. A second-degree sprain involves tearing of nerve fibers and results in increased edema, tenderness, pain with motion, joint instability, and partial loss of normal joint function.
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