fetal scalp blood sampling


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fetal scalp blood sampling

The process of obtaining a small amount of blood from the fetal scalp for pH testing. When the monitor recording suggests fetal compromise during labor, the physician or nurse-midwife may elect to perform this procedure. The normal finding for fetal pH is at or above 7.25. Findings between 7.20 and 7.24 indicate a preacidotic state; if the pH is below 7.20, acidosis is present.
See also: sampling