The nurse is examining a 6-month-old infant and places the infant's feet flat on the table and flexes his knees up. The nurse notes that the right knee is significantly lower than the left. Which of these statements is true of this finding?
a. This finding is a positive Allis sign and suggests hip dislocation.
b. The infant probably has a dislocated patella on the right knee.
c. This finding is a negative Allis sign and normal for an infant of this age.
d. The infant should return to the clinic in 2 weeks to see if his condition has changed.
ANS: A
Finding one knee significantly lower than the other is a positive Allis sign and suggests hip dislocation. Normally, the tops of the knees are at the same elevation. The other statements are not correct.
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