Chapter 3 Prenatal Care Flashcards
Blood type, Rh factor, and presence of irregular antibodies
Determined the risk of maternal-fetal blood incompatibility (erythroblastosis fetalis) or neonatal hyperbilirubinemia
CBC with differential, Hgb, and Hct
Detects infection and anemia
HGB electrophoresis
Identifies hemoglobinopathies (sickle cell anemia and thalassemia)
Rubella titer
Determines immunity to rubella
Hepatitis B screen
Identifies carriers of hepatitis B
Group B streptococcus (GBS)
Obtain a vaginal/anal culture at 35 to 37 weeks of gestation to check for GBS infection.
Urinalysis with microscopic examination if pH, specific gravity, color, sediment, protein, glucose, albumin, RBC’s, WBC’s, casts, acetone, add human chronic gonadotropin
Identifies pregnancy, DM, gestational hypertension, renal disease and infection
One hour glucose tolerance
(Oral ingestion with the sample taken 1 hour later)
Identifies hyperglycemia
•done at initial visit for at risk clients
•done at 24-28 weeks of gestation
(Greater than 140 mg/dL required follow up)
Three hour glucose (fasting- oral concentrated glucose with venous sample 1, 2, and 3 hours later)
For clients who have elevated 1 hour glucose test as a screening for DM. A diagnosis of gestational diabetes requires two elevated blood glucose readings.
Glycoylated hemoglobin (HbA1c)
Indicated for clients who have diabetes mellitus prior to pregnancy
•The best indicator of an average blood glucose level for the past 120 days
•6.5% to 8% indicates diabetes
•Greater than 8% indicates poor control of diabetes
•5.7% or less indicates that the client does not have diabetes mellitus
Papabicolaou (Pap) test
Used as a screening tool for cervical cancer. HPV co-testing can also be done.
Vaginal/cervical culture
Detects streptococcus beta-hemolytic, bacterial vaginosis, or sexually transmitted infections (gonorrhea and chlamydia)
PPD (tuberculosis screening), chest X-ray after 20 weeks of gestation with a positive PPD test
Identifies exposure to tuberculosis
Veneral disease research laboratory (VDRL), Rapid plasma reagent (RPR)
Syphilis screening mandated by law
HIV
Detects HIV infection (the CDC recommends testing all clients who are pregnant unless the client refuses)