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;
28 Cards in this Set
- Front
- Back
|
What is the most accurate sono method of estimating GA? |
CRL in first trimester |
|
|
If the AC fall more than ___ SD below the mean for GA look for additional signs of IUGR. |
2 |
|
|
If the FL falls short more than ___ SD, look for other signs of skeletal dysplasia. |
2 |
|
|
If head measurements and/or AC fall short, calculate the ratio of? |
HC/AC |
|
|
What is Nagele's Rule? |
EDC=LMP- 3 months+7days -used to determine due date from last menstrual period |
|
|
Measuring the BPD and HC should be at the level of? |
thalami and cavum septum pellucidum (CSP) |
|
|
When measuring BPD calipers are placed? |
"outer to inner" |
|
|
Cephalic Index is? Normal range? |
-defines head shape, and is determined by dividing the BPD by occipital frontal diameter (OFD) -normal: 0.7-0.86 (70-86%) |
|
|
Dolichocephaly is? |
cephalic index <.70 or <70% |
|
|
Brachyecephaly is? |
cephalic index >.86 or 86% |
|
|
In cases of dolichocephaly or brachycephaly ____ is eliminated from the estimation of GA. |
BPD |
|
|
OFD should be measured? |
outer edge to outer edge |
|
|
AC is performed at the level of? |
level of stomach and portal sinus of umbilical vein |
|
|
AC includes measurement of the? |
soft tissue |
|
|
FL is measured (posterior or anterior)? |
anterior |
|
|
The FL measurement includes only ___, NOT ___. |
-only ossified diaphysis -excludes epipyseal cartilage |
|
|
What bones are measured when measuring the long bones? |
-humerus -radius -ulna -tibia -fibula |
|
|
Binocular distance is measured? |
lateral orbital rim to lateral orbital rim |
|
|
Transcerebellar distance is measured? |
lateral aspects of cerebellum in axial plane |
|
|
BPP is a system designed to detect fetal? |
asphyxia |
|
|
Fetal lie is defined as? |
relationship of fetal long axis to long axis of mother |
|
|
Fetal presentation refers to? |
fetal part closest to the internal cervical os |
|
|
What is the most common of all types of fetal presentation? |
cephalic (head presenting), vertex most common with parietal bones presenting |
|
|
A fetus is breech when? |
fetal head in fundus of uterus |
|
|
To determine position "be the fetus" ! If transverse image, and transverse view of fetus, then fetus is in a longitudinal lie meaning fetus is cephalic or breech. With spine 12:00, if stomach at 3:00 fetus is? If stomach is at 9:00 fetus is? |
-cephalic -breech |
|
|
If longitudinal image, and transverse view of fetus, then fetus is in a transverse lie (head maternal left or head maternal right) Spine 12:00, if stomach is at 3:00 fetus is? If stomach is at 9:00 fetus is? |
-transverse head maternal right -transverse head maternal left |
|
|
Examples of determining fetal lie. |
|
|
What is the fetal lie based on this picture? |
Breech |
