TPAL System and GPA – The Difference

by Jennifer on August 9, 2011

GPA stands for gravida, para, and abortus.

Gravida is the number of pregnancies (no matter if they were carried to term or not).  It would also include a current pregnancy.

Para is the number of viable births greater than 20 weeks (this number counts as 1 for twins, triplets, or multiples).

Abortus is the number of abortions, pregnancies lost no matter what the reason.  The number would include miscarriages.  The number would include induced abortions.

These are separated by commas.  Transcribe them (abbreviated or spelled out) as dictated.

Example:  G9, P9, A0 or gravida 9, para 9, abortus 0

TPAL system describes obstetric history of a woman.

T = term infants
P = premature infants
A = abortions
L = living children

These are separated by hyphens.

Example:  3-1-2-3

You will at times find GPA and TPAL dictated together.

Example:  Patient is gravida 2, 2-0-0-2 or gravida 2, para 2-0-0-2 or G2, P2-0-0-2 or gravida 2-0-0-2.

You can find information on TPAL system and GPA in the Book of Style (third edition) starting on page 402.

{ 5 comments… read them below or add one }

Diane August 17, 2011 at 8:52 pm

I needed the combo part – thank you

Kam August 20, 2011 at 9:16 pm

Nice to have it separated out.

Mary December 9, 2011 at 11:24 pm

Great information! Thank you for the Book of Style reference too.

Rose December 14, 2011 at 9:12 pm

I always like to know where information comes from. Thank you for the Book of Style reference. I will check it out!

Karley June 27, 2012 at 5:56 pm

Just started typing OB today so this will come in handy.

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