Final answer:
Indomethacin can be used to delay labor up to 32 weeks of gestation for a maximum of 48 hours. It is an NSAID that reduces uterine contractions and is limited to short-term use due to potential fetal risks.
Step-by-step explanation:
Indomethacin is a nonsteroidal anti-inflammatory drug (NSAID) that can be used to delay preterm labor by reducing uterine contractions. The use of indomethacin for this purpose is typically limited and should be used before a certain gestational age to minimize potential risks to the fetus. Indomethacin is usually recommended to be used up to 32 weeks of gestation and can be given for a duration of up to 48 hours to delay labor. Therefore, the correct answer to the question 'Up to what gestational age can indomethacin be given to delay labor and for how long?' is b) 32 weeks; 48 hours.