Dx of Pregnancy and Prenatal Care Flashcards
Key symptoms of pregnancy
Amenorrhea
Nausea and vomiting
Breast tenderness
Chadwick’s sign
Bluing of the vagina/cervix (purpley hue from congestion)
Chloasma
Hyperpigmentation of face (across bridge of nose and into mallar area)
Confirmatory tests for pregnancy
Qualitative BhCG to tell yes/no if preggers
Quantitative BhCG to tell if levels are going up, down, or are stable
What serum progesterone rules out an ectopic pregnancy?
Greater than 25
What is used to determine the estimated date of delivery?
FDLMP
When is it more reliable to use the FDLMP to predict the EDD?
If the FDLMP is known
Menstrual cycles are regular
EDD by FDLMP and EDD by early US do not differ by more than the range of US confidence
When is it more reliable to use the fetal US to predict the EDD?
FDLMP is not known with certainty
Menstrual cycles irregular
EDD by FDLMP and EDD by early US differ by more than the range of US confidence
What are the gestational and embryologic ages based on?
Gestational age is based on FDLMP
Embryologic age is based on conception
What is an ectopic pregnancy?
Pregnancy located anywhere outside the endometrial cavity
How is ectopic pregnancy diagnosed?
Absence of an intrauterine gestational sac on transvaginal US once the quantitative hCG reaches 1500
What two things in a first trimester screening could indicate Down’s Syndrome?
Higher than usual total hCG
Nuchal lucency - thickening in naturally occurring fluid space at back of neck
When is Rhogam administered?
Antepartum at 28 weeks
Post partum if infant is Rh positive
When is the culture for group B strep taken?
35-36 weeks
What women should be treated for group B strep?
All women who have GBS bacteriuria at any time in pregnancy
Women who have given birth to an infant with GBS disease
