Laudário Report templates 21 to 27 weeks

Ultrasound report at 21 to 27 weeks: ready templates

Between 21 and 27 weeks the obstetric scan follows fetal growth, now with the estimated weight as a percentile, and describes the placenta, amniotic fluid and, when measured, the cervix. Below are the singleton template, the dichorionic twin template and the short cervix example. Detailed fetal anatomy is in the second-trimester anomaly scan template.

21 to 27 weeks template: singleton

OBSTETRIC ULTRASOUND

TECHNIQUE:

Transabdominal scan.

FINDINGS:

Gravid uterus containing a single fetus, in [cephalic/breech] presentation at the time of the scan.

Cardiac activity present and rhythmic, with a rate of [x] bpm. Fetal movements present.

Biometry: BPD [x] mm; HC [x] mm; AC [x] mm; FL [x] mm.

Estimated fetal weight (Hadlock): [x] g, [x] percentile for gestational age.

[Anterior/posterior] placenta, with normal appearance, its lower edge [x] mm from the internal cervical os.

Normal amniotic fluid volume (deepest vertical pocket of [x] cm).

Three-vessel umbilical cord.

IMPRESSION:

Single pregnancy with a live fetus, [x] weeks and [x] days by first-trimester dating.

Appropriate fetal growth ([x] percentile).

NOTE:

This scan does not assess fetal anatomy in detail, which is done in the second-trimester anomaly scan (20 to 24 weeks).

21 to 27 weeks template: dichorionic twins

FINDINGS:

Gravid uterus containing two fetuses in separate amniotic sacs, with [separate/fused] placentas.

Fetus [1]: [cephalic/breech] presentation, heart rate of [x] bpm and estimated fetal weight of [x] g ([x] percentile).

Fetus [2]: [cephalic/breech] presentation, heart rate of [x] bpm and estimated fetal weight of [x] g ([x] percentile).

Normal amniotic fluid volume in both sacs.

IMPRESSION:

Dichorionic diamniotic twin pregnancy with two live fetuses.

Weight discordance between the fetuses: [x]%.

Example: short cervix

FINDINGS:

Single fetus, cardiac activity present, 23 weeks and 1 day by first-trimester dating.

Cervix measured transvaginally, 18 mm long, with a closed internal os.

IMPRESSION:

Singleton pregnancy with a live fetus.

Short cervix (18 mm).

RECOMMENDATIONS:

Obstetric assessment for preterm birth prevention.

Fields in brackets are filled in from the exam. The template is a starting point: the report must reflect what was seen and your practice's guidelines.

Frequently asked questions

What is the difference between this scan and the second-trimester anomaly scan?

The 21 to 27 weeks obstetric scan follows growth, placenta and amniotic fluid. The anomaly scan, done between 20 and 24 weeks, examines fetal anatomy organ by organ.

How much does the baby weigh at 24 weeks?

About 650 g at 24 weeks and 1,000 g at 27 weeks, at the Hadlock 50th percentile. What matters in the report is the percentile: between 10 and 90, the weight is appropriate for gestational age.

When is the cervix considered short?

When it measures 25 mm or less transvaginally in the second trimester. The finding raises the risk of preterm birth and changes management, so it should be reported with the measurement and the route.

Can a low-lying placenta at 24 weeks still move up?

Yes. The placental edge usually moves away from the cervix by the third trimester. When it is less than 20 mm from the internal os, reassessment is transvaginal at 32 weeks.

What is the normal deepest pocket of amniotic fluid?

Between 2 and 8 cm. Below 2 cm is oligohydramnios and above 8 cm, polyhydramnios.

Other report templates

Obstetric scan at 5, 6 and 7 weeks Obstetric scan at 8, 9 and 10 weeks Obstetric scan at 11 to 14 weeks Obstetric scan at 15 to 20 weeks Early obstetric (5 to 10 weeks) 1st trimester anatomy scan 2nd and 3rd trimester obstetric 2nd trimester anatomy scan Complete abdomen Transvaginal pelvic Thyroid Breast Kidneys and urinary tract Lower limb venous Doppler

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