NARM FINAL PRENATAL TESTING & LABS
What do the Coombs test detect?
antibodies that fight red blood cells
What does a positive indirect coombs test mean?
Maternal Rh sensitization
What does a negative indirect coombs test mean?
no antibodies against the Rh-positive blood of baby
When would you need to run an indirect Coombs test?
Rh- moms
When would you need to run a direct Coombs test?
infant showing signs of jaundice in first 24 hrs of life
Odds of developing diabetes if you've had gestational diabetes with managed
BMI?
25%
What is amniocentesis?
amniotic fluid sampling during pregnancy
Weeks gestation amniocentesis is performed?
14-20 wks gestation (before 14 wks causes complications)
What is Amnioscopy?
-assessing amniotic fluid in the last trimester
-looks for meconium staining which tells of post-maturity or toxemia
wks gestation Amnioscopy is performed
37 wks +
what is amniotomy?
AROM (artificial rupture of membranes)
What timeframe for MsAFP testing to be performed?
15-20 wks
MsAFP ranges of normal
1st trimester: 18-119 ng/mL
2nd tri: 96-302 ng/mL
3rd tri: 160-550 ng/mL
Possible causes of high results from MsAFP screening?
Nural tube defects, ventral wall defects, multiple gestation, fetal demise, inaccurate
EDD
possible causes of low levels of MsAFP?
chromosomal abnormality.
Rubella titer immunity lab value
1.0 or higher (positive for rubella antibodies)
Rubella titer range of non-immunity
<.07 (negative for rubella antibodies)
What test to run for megoblastic anemia?
CBC
How to diagnose molar pregnancy?
What do the Coombs test detect?
antibodies that fight red blood cells
What does a positive indirect coombs test mean?
Maternal Rh sensitization
What does a negative indirect coombs test mean?
no antibodies against the Rh-positive blood of baby
When would you need to run an indirect Coombs test?
Rh- moms
When would you need to run a direct Coombs test?
infant showing signs of jaundice in first 24 hrs of life
Odds of developing diabetes if you've had gestational diabetes with managed
BMI?
25%
What is amniocentesis?
amniotic fluid sampling during pregnancy
Weeks gestation amniocentesis is performed?
14-20 wks gestation (before 14 wks causes complications)
What is Amnioscopy?
-assessing amniotic fluid in the last trimester
-looks for meconium staining which tells of post-maturity or toxemia
wks gestation Amnioscopy is performed
37 wks +
what is amniotomy?
AROM (artificial rupture of membranes)
What timeframe for MsAFP testing to be performed?
15-20 wks
MsAFP ranges of normal
1st trimester: 18-119 ng/mL
2nd tri: 96-302 ng/mL
3rd tri: 160-550 ng/mL
Possible causes of high results from MsAFP screening?
Nural tube defects, ventral wall defects, multiple gestation, fetal demise, inaccurate
EDD
possible causes of low levels of MsAFP?
chromosomal abnormality.
Rubella titer immunity lab value
1.0 or higher (positive for rubella antibodies)
Rubella titer range of non-immunity
<.07 (negative for rubella antibodies)
What test to run for megoblastic anemia?
CBC
How to diagnose molar pregnancy?
