# What does it mean if your fundal height is high?

## What does it mean if your fundal height is high?

If your fundal height is larger than expected, it may be because: You have too much amniotic fluid. You’re having more than one baby. Your baby is larger than expected.

## How does fundal height determine baby weight?

Johnson’s formula for estimation of foetal weight in vertex presentation is as follows: Foetal weight (g)=fH (cm)n × 155. fH=fundal height and n=12 if vertex is above ischial spine or 11 if vertex is below ischial spine. If a patient weighs more than 91 kg, 1 cm is subtracted from the fundal height.

What should be the fundal height at 37 weeks?

Fundal heights tend to be used from 24 to 37 weeks of pregnancy. A text book fundal height is supposed to equal the same amount of weeks as the pregnancy. For example, 24 weeks pregnant equal 24 cm and so forth (up until about 36 to 37 weeks).

### What is the normal fetal weight?

Fetal growth chart

Gestational age Length (US) Weight (US)
28 weeks 14.80 inches 2.22 pounds
29 weeks 15.47 inches 2.54 pounds
30 weeks 15.95 inches 2.91 pounds
31 weeks 16.46 inches 3.31 pounds

### What is the best way to predict fetal weight?

The most established way to estimate fetal weight is the ultrasound method, as previously described [10,11,12] and most commonly performed with three measurements fitted into an algorithm designed by Hadlock et al. [10].

How accurate are fundal height measurements?

More recently, a larger random study found that fundal height measurement were about 46 to 48% accurate, with abdominal palpation about 24 to 29% accurate. At this stage there appears on balance to be some benefit in doing fundal height measurements.