AFL™  Monitoring in Practice


AFL™ (Amniotic Fluid Lactate) stands for Lactate concentration in Amniotic Fluid. Samples of amniotic fluid are collected during active labor and analyzed for the concentration of lactate. The lactate level is automatically presented in the partogram. By combining the result with the development of cervix dilatation a thorough understanding of the delivery status is obtained.



Less than a few millilitre of the spontaneously pouring amniotic fluid during active labor is necessary for an accurate measurement of the AFL™ level. The fluid can easily be collected with a standard syringe. The fluid is delivered into the single use measuring probe on the measuring unit and the measurement starts automatically.

If spontaneously pouring fluid is not available a smooth intra-uterine catheter is available for collection of the sample.

 AFL™ monitoring during Dysfunctional Labor


Substantial evidence show that a raised lactate level in the uterine muscle leads to inhibition of muscle contractions resulting in dysfunctional labor. The uterine lactate concentration is reflected in the lactate concentration in the amniotic fluid, which can be measured with a quick and non-invasive AFL (Amniotic Fluid Lactate) test. 


normal AFL™ level is a strong indication that using oxytocin according to normal treatment protocols will result in a spontaneous vaginal delivery.


A high AFL™ level is on the other hand a strong indication that using oxytocin will not improve the probability for a spontaneous vaginal delivery and that the delivery will end in operative intervention.

There is also shown an association between adverse neonatal outcome at delivery, abnormal CTG and a high concentration of lactate in Amniotic Fluid.


However, if a high AFL™ level is appropriately taken care of during active labor, the probability for a spontaneous vaginal delivery is increased and an unnecessarily operative delivery may be avoided.


| Clinical Solutions | Clinical References



                   AFL Measuring unit


          Single use Measuring Probe


         Partogram with projected AFL

         (Click on picture for details)


Obstecare AB

Karolinska Institutet Science Park

Fogdevreten 2

SE 171 65 SOLNA


© 2017 Obstecare AB

Telephone:  +46 8 751 56 27


facebooklogo-3.png twitter-icon.png linked-in.png

AFL monitoring system is currently not commercially available in the United States