For which client would an L/S ratio of 2:1 potentially be considered to be abnormal?

a. A 38-year-old gravida 2, para 1, who is 38 weeks' gestation
b. A 24-year-old gravida 1, para 0, who has diabetes
c. A 44-year-old gravida 6, para 5, who is at term
d. An 18-year-old gravida 1, para 0, who is in early labor at term


ANS: B
Even though an L/S ratio of 2:1 is typically considered to be a normal finding to validate fetal lung maturity prior to 38 weeks' gestation, the result may not be accurate in determining fetal lung maturity if a client is diabetic.

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