Question

According to the sogc guidelines (2020) regarding fetal scalp blood sampling, which statement is true?

a. a fetal scalp blood ph value of 7.26 is associated with an umbilical artery ph of < 7
b. a fetal scalp blood ph value between 7.21-7.24 is an indication for expedited birth
c. the fetus should be birthed if fetal scalp blood sampling needs to be done
d. a fetal scalp blood ph value of < 7.19 is an indication for expedited birth

Answer 1

The correct statement according to SOGC guidelines (2020) about fetal scalp blood sampling is that a fetal scalp blood pH value of < 7.19 is an indication for expedited birth.

Step-by-step explanation:

According to the SOGC guidelines (2020) regarding fetal scalp blood sampling, the statement that is true is 'd. a fetal scalp blood pH value of < 7.19 is an indication for expedited birth'. This is confirmed by referencing the standard range of normal arterial blood pH, which is typically between 7.35 to 7.45. A pH below 7.35 is considered acidosis, and a continuous blood pH below 7.0 can be fatal; thus a fetal scalp blood pH value of less than 7.19 is a clear indicator of significant acidosis and is an indication for expedited birth to reduce the risk of fetal distress or worse outcomes.