Your client can achieve complete range of motion of both elbows only as you support her joints and without applying manual resistance. How would you record her muscle strength?
a. 4/5, good c. 2/5, poor
b. 3/5, fair d. 1/5, trace
C
A muscle strength of 2/5, or 25%, means that complete range of joint motion is possible only with the joint supported by the nurse to eliminate the force of gravity and without any manual resistance from the nurse. A 4/5, or 75%, means that complete range of joint motion is possible against both gravity and moderate manual resistance from the nurse. A rating of 3/5 is fair, meaning complete range of joint motion is possible only without manual resistance from the nurse. A rating of 1/5 is considered trace and means that muscle contraction is detectable, but insufficient to move the joint even when the forces of both gravity and manual resistance have been eliminated.
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