Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
Purpose of amniotic fluid |
allows the fetus to move freely within the amniotic cavity while maintaining intrauterine pressure and protecting the developing fetus |
|
Contributors to the production of amniotic fluid |
Umbilical cord membranes lungs skin kidneys |
|
Volume of amniotic fluid increases until the _week |
34 weeks |
|
Amniotic fluid appears most generous..... |
20-30 weeks increases by 10mL per day |
|
Vernix caseosa |
fatty material found on fetal skin and in amniotic fluid |
|
Source of amniotic fluid early in gestation |
amniotic membrane |
|
Amniotic fluid regulation |
Production of fluid with swallowing, fluid exchange in lungs, urination |
|
Relationship between amount of amniotic fluid and lung development |
oligohydramos/ low amounts of amniotic fluid causes inadequate lung development
could cause small or hypoplastic lungs |
|
Per week increases 11-15 weeks |
25mL |
|
Per week increase 15-28 weeks |
50mL |
|
Hydramnios/polyhydramnios |
increase in amniotic fluid AFI greater than 24cm Largest vertical pocket: > 8cm |
|
Oligohydramnios |
decreased amount of amniotic fluid AFI less than 5cm Largest vertical pocket: 2cm or less |
|
AFI method |
Uterine cavity is divided into 4 equal quadrants and the largest vertical pocket of amniotic fluid free from limbs or loops is measured
|
|
Single-Pocket assessment |
Identify the largest pocket of amniotic fluid free from fetal components and measure
normal: 2-8cm
|
|
Two-Diameter Pocket assessment |
Identify the largest pocket of amniotic fluid free from fetal components and measure 2 diameters, multiply them together
normal: 15-50cm |