What is the meaning of LOA, and is it suitable for a vaginal birth?

Patient's question:

No

Doctor's answer:

There are six fetal positions for vertex presentation:
Left Occiput Anterior (LOA)
Left Occiput Transverse (LOT)
Left Occiput Posterior (LOP)
Right Occiput Anterior (ROA)
Right Occiput Transverse (ROT)
Right Occiput Posterior (ROP)
There are six fetal positions for breech presentation:
Left Sacrum Anterior (LSA)
Left Sacrum Transverse (LST)
Left Sacrum Posterior (LSP)
Right Sacrum Anterior (RSA)
Right Sacrum Transverse (RST)
Right Sacrum Posterior (RSP)
There are six fetal positions for face presentation:
Left Mentum Anterior (LMA)
Left Mentum Transverse (LMT)
Left Mentum Posterior (LMP)
Right Mentum Anterior (RMA)
Right Mentum Transverse (RMT)
Right Mentum Posterior (RMP)
There are four fetal positions for shoulder presentation:
Left Scapula Anterior (LScA)
Left Scapula Posterior (LScP)
Right Scapula Anterior (RScA)
Right Scapula Posterior (RScP)