PAEA OBGYN EOR Topics.pdf file:///C:/Users/HP/Desktop/dddd/PAEA%20OBGYN%20EOR%20To
PAEA OBGYN EOR TOPICS
1. 1. G2 P1001
2. G4 P1111
3. G3 P2103: 1. currently pregnant, 1 term delivery, 1 living child
2. currently pregnant, 1 term delivery, 1 preterm delivery, 1 abortion/miscarriage, 1living child
(cannot tell if it is term or preterm child by formula)
3. currently pregnant, twins at term, 1 at preterm, 3 living children
G (# pregnancies)
T (# term deliveries at 37 weeks or more including stillbirths)P (#
preterm deliveries at 20-37 weeks)
A (abortions <20 weeks including miscarriages)L (#
living children)
2. a previable fetus is defined as: <24 weeks old (varies w/ guidelines)
3. what are the routine test during the first prenatal visit?: blood pressure, bloodtype & Rh,
CBC, UA (glucose & protein), random glucose, HBsAg, Hep C, HIV, syphilis, rubella titer, VZV
1 of 108 9/27/2024, 4:45
,PAEA OBGYN EOR Topics.pdf file:///C:/Users/HP/Desktop/dddd/PAEA%20OBGYN%20EOR%20To
titer, pap, sickle cell & CF screening
4. diagnosis of pregnancy can be detected by serum B-hCG at days afterconception and by
urine B-hCG at days after conception: serum B-hCG: 5 days after conception
urine B-hCG: 14 days after conception
5. how is estimated date of delivery (EDD) determined?: Naegele's Rule: from 1st day of
LMP
1. subtract 3 mos, add 7 days, add 1 year
2. add 9 mos & 7 days
ex: LMP started 8/7/16 = EDD: 5/14/17
6. when estimating gestational age on US what measurements can you use?-
: 1. crown rump length (CRL)
2. biparietal diameter
3. head circumference
4. abdominal circumference
5. femur length
7. what physical exam and lab tests should be performed on initial visit of a pregnant
patient?: full physical exam, BP, pelvic exam w/ pap smear (unless donein last 6 mos), G/C Cx's,
bimanual exam to check size of uterus and help estimate# weeks into pregnancy, US if unsure
2 of 108 9/27/2024, 4:45
,PAEA OBGYN EOR Topics.pdf file:///C:/Users/HP/Desktop/dddd/PAEA%20OBGYN%20EOR%20To
of LMP to date # weeks
labs: CBC (r/o anemia), blood type & Ab screen + Rh status, RPR, HBSAg, rubellaAb screen, VZV
Ab screen if no h/o chickenpox, UA w/ Cx, blood glucose, HIV, sicklecell/CF screen, PPD in high
risk pts, screening for aneuploidy offered (inc or dec free
3 of 108 9/27/2024, 4:45
,PAEA OBGYN EOR Topics.pdf file:///C:/Users/HP/Desktop/dddd/PAEA%20OBGYN%20EOR%20To
B-hCG, PAPP-A low w/ down syndrome, inc nuchal translucency @10-13 weeksUS)
8. what are the screening tests for aneuploidy (including down syndrome)?when are
they performed?: ALL offered around 10-13 weeks
1. free B-hCG (high or low can be indicative of abnormalities)
2. PAPP-A (usually low w/ DS)
3. nuchal translucency (inc thickness on US)
4. if any above + can be offered chorionic villus sampling (or if they have any RF foraneuploidy
such as advanced maternal age/AMA, previous child w/ chromosomal abnmlity, abnml US,
prior pregnancy losses) but inc r/o spontaneous abortion w/ procedure
*amniocentesis offered around 15-18 weeks w/ same indications as CVS (both candiagnose
chromosomal abnormalities and have risk of spontaneous abortion)
9. the uterus softening at 6 weeks is what sign?: Ladin's sign
10. the uterine isthmus softening after 6-8 weeks gestation is what sign?: -
Hegar's sign
11. bluish coloration of the cervix & vulva around 8-12 weeks is what sign?: -
Chadwick's sign
4 of 108 9/27/2024, 4:45
PAEA OBGYN EOR TOPICS
1. 1. G2 P1001
2. G4 P1111
3. G3 P2103: 1. currently pregnant, 1 term delivery, 1 living child
2. currently pregnant, 1 term delivery, 1 preterm delivery, 1 abortion/miscarriage, 1living child
(cannot tell if it is term or preterm child by formula)
3. currently pregnant, twins at term, 1 at preterm, 3 living children
G (# pregnancies)
T (# term deliveries at 37 weeks or more including stillbirths)P (#
preterm deliveries at 20-37 weeks)
A (abortions <20 weeks including miscarriages)L (#
living children)
2. a previable fetus is defined as: <24 weeks old (varies w/ guidelines)
3. what are the routine test during the first prenatal visit?: blood pressure, bloodtype & Rh,
CBC, UA (glucose & protein), random glucose, HBsAg, Hep C, HIV, syphilis, rubella titer, VZV
1 of 108 9/27/2024, 4:45
,PAEA OBGYN EOR Topics.pdf file:///C:/Users/HP/Desktop/dddd/PAEA%20OBGYN%20EOR%20To
titer, pap, sickle cell & CF screening
4. diagnosis of pregnancy can be detected by serum B-hCG at days afterconception and by
urine B-hCG at days after conception: serum B-hCG: 5 days after conception
urine B-hCG: 14 days after conception
5. how is estimated date of delivery (EDD) determined?: Naegele's Rule: from 1st day of
LMP
1. subtract 3 mos, add 7 days, add 1 year
2. add 9 mos & 7 days
ex: LMP started 8/7/16 = EDD: 5/14/17
6. when estimating gestational age on US what measurements can you use?-
: 1. crown rump length (CRL)
2. biparietal diameter
3. head circumference
4. abdominal circumference
5. femur length
7. what physical exam and lab tests should be performed on initial visit of a pregnant
patient?: full physical exam, BP, pelvic exam w/ pap smear (unless donein last 6 mos), G/C Cx's,
bimanual exam to check size of uterus and help estimate# weeks into pregnancy, US if unsure
2 of 108 9/27/2024, 4:45
,PAEA OBGYN EOR Topics.pdf file:///C:/Users/HP/Desktop/dddd/PAEA%20OBGYN%20EOR%20To
of LMP to date # weeks
labs: CBC (r/o anemia), blood type & Ab screen + Rh status, RPR, HBSAg, rubellaAb screen, VZV
Ab screen if no h/o chickenpox, UA w/ Cx, blood glucose, HIV, sicklecell/CF screen, PPD in high
risk pts, screening for aneuploidy offered (inc or dec free
3 of 108 9/27/2024, 4:45
,PAEA OBGYN EOR Topics.pdf file:///C:/Users/HP/Desktop/dddd/PAEA%20OBGYN%20EOR%20To
B-hCG, PAPP-A low w/ down syndrome, inc nuchal translucency @10-13 weeksUS)
8. what are the screening tests for aneuploidy (including down syndrome)?when are
they performed?: ALL offered around 10-13 weeks
1. free B-hCG (high or low can be indicative of abnormalities)
2. PAPP-A (usually low w/ DS)
3. nuchal translucency (inc thickness on US)
4. if any above + can be offered chorionic villus sampling (or if they have any RF foraneuploidy
such as advanced maternal age/AMA, previous child w/ chromosomal abnmlity, abnml US,
prior pregnancy losses) but inc r/o spontaneous abortion w/ procedure
*amniocentesis offered around 15-18 weeks w/ same indications as CVS (both candiagnose
chromosomal abnormalities and have risk of spontaneous abortion)
9. the uterus softening at 6 weeks is what sign?: Ladin's sign
10. the uterine isthmus softening after 6-8 weeks gestation is what sign?: -
Hegar's sign
11. bluish coloration of the cervix & vulva around 8-12 weeks is what sign?: -
Chadwick's sign
4 of 108 9/27/2024, 4:45
