Laudário Report templates 15 to 20 weeks

Ultrasound report at 15 to 20 weeks: ready templates

Between 15 and 20 weeks the obstetric scan confirms viability, follows biometry and describes the placenta and amniotic fluid, and it is often when the mother learns the baby's sex. Below are the singleton template, the template for a pregnancy without a first-trimester scan and the low-lying placenta example. Detailed fetal anatomy is in the second-trimester anomaly scan template.

15 to 20 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.

[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.

External genitalia of [female/male] appearance.

IMPRESSION:

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

Biometry consistent with gestational age.

NOTE:

This scan does not replace the second-trimester anomaly scan, done between 20 and 24 weeks, which assesses fetal anatomy in detail.

15 to 20 weeks template: no first-trimester scan

FINDINGS:

Single fetus, with regular cardiac activity present, heart rate of [x] bpm.

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

Gestational age by head circumference: [x] weeks and [x] days.

Gestational age by LMP: [x] weeks and [x] days.

IMPRESSION:

Singleton pregnancy with a live fetus.

Reference gestational age: [x] weeks and [x] days, by [LMP/head circumference], with an estimated due date of [dd/mm/yyyy].

Example: low-lying placenta

FINDINGS:

Single fetus, cardiac activity present, 19 weeks and 2 days by first-trimester dating.

Posterior placenta, its lower edge 12 mm from the internal cervical os, not covering it.

IMPRESSION:

Singleton pregnancy with a live fetus.

Low-lying placenta, its edge 12 mm from the internal cervical os.

RECOMMENDATIONS:

Transvaginal reassessment of placental position at 32 weeks.

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 15 to 20 weeks obstetric scan confirms viability, growth, placenta and amniotic fluid. The anomaly scan, done between 20 and 24 weeks, examines fetal anatomy organ by organ.

Can the baby's sex be seen at 16 weeks?

Most of the time, yes, when the fetal position allows the external genitalia to be seen. Accuracy is high from 16 weeks and even higher after 18 weeks.

How is the pregnancy dated without a first-trimester scan?

By head circumference, the most accurate measurement in the second trimester. Dating switches to ultrasound when the difference from the LMP is more than 7 days between 14 weeks and 15 weeks and 6 days, or more than 10 days between 16 weeks and 21 weeks and 6 days.

Is a low-lying placenta at 18 weeks a concern?

Usually not: as the lower uterine segment grows, the placental edge tends to move away from the cervix. When the edge is less than 20 mm from the internal os or covers it, transvaginal reassessment at 32 weeks is recommended.

What is the normal fetal heart rate in the second trimester?

Between 110 and 160 bpm. After peaking at about 170 bpm around 9 to 10 weeks, the rate gradually falls throughout pregnancy.

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 21 to 27 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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