Prenatal Care

Question 1

What is the EDD?

Answer 1

Expected Date of Delivery. Estimated Due Date. Was called EDC.

Question 2

How do you calculate the EDD?

Answer 2

Naegele’s Rule. First day of LMP minus 3 months plus one year. This works for 28 day menstrual cycle, based on first day of LMP plus 280 days.

Question 3

When will urine pregnancy tests be positive?

Answer 3

Within one week of missed menses.

Question 4

How do you determine the gravida and parity of a patient?

Answer 4

Gravida is how many times the patient has been pregnant including current pregnancy. Parity is Florida Power And Light. F is number of full term births. P is number of pre term births. A is abortions, ectopics, elected or spontaneous. L is number of living children. For mom G4P4004.

Question 5

What is drug category A?

Answer 5

Studies in humans. No risk. Prenatal vitamins.

Question 6

What is drug category B?

Answer 6

Studies in animals. No risk. Azithromycin, Cephalosporins, Erythromycin, Penicillins, Sulfonamides.

Question 7

What is drug category C?

Answer 7

No adequate studies. Includes many medications commonly taken during pregnancy. Aminoglycosides, Fluoroquinolones, Trimethoprim, Vancomycin.

Question 8

What is drug category D?

Answer 8

Evidence of fetal risk but benefit may outweigh risk. Carbamazapine, Phenytoin, Streptomycin, Tetracyclines (yellow teeth)

Question 9

What is drug category X?

Answer 9

Proven fetal risks clearly outweigh benefit. Acutane.

Question 10

What is the initial prenatal lab work?

Answer 10

CBC, UA, ABO and Rh factor and antibody screen, Rubella titer, RPR, HBsAg, HIV antibody

Question 11

When does gestational diabetes screening occur?

Answer 11

24-28 weeks gestation. One hour test after 50 gram glucose load. Confirmed with 3 hour glucose tolerance test.

Question 12

What is Rhogam given for? When is it given?

Answer 12

Testin for ABO blood group and RhD antibodies first trimester. Rho(D) immune globulin 300 mcg for nonsensitized women at 28 weeks gestation and within 72 hours of delivery if infant has RhD-positive blood. Administered if increased risk (chorionic villus sampling, amniocentesis, etc.)

Question 13

What is the Group B Strep screen?

Answer 13

All pregnant women offered screening. 35-37 week. Treatment intrapartum antibiotic prophylaxis.

Question 14

When is Rhogam given to nonsensitized women?

Answer 14

28 weeks gestation and within 72 hours of delivery if infant has RhD-positive blood and mother is negative.

Question 15

When is Chorionic villus sampling done?

Answer 15

10-12 weeks

Question 16

When is Amniocentesis (early vs routine) with ultrasound done?

Answer 16

13-18 weeks

Question 17

When is Ultrasound for anomalies done?

Answer 17

16-20 weeks

Question 18

When is Maternal serum quad-marker screening done?

Answer 18

16-18 weeks

Question 19

When is Diabetes screening and Hct; repeat as needed done?

Answer 19

24-28 weeks

Question 20

When is Rh-negative patients, repeat antibody test, administer Rho(D) immune globulin given?

Answer 20

28 weeks

Question 21

When do you consider repeat STD screening, ultrasound, Hct, FBS?

Answer 21

32-36 weeks

Question 22

When do you assess for fetal position, confirm vertex?

Answer 22

36 weeks

Question 23

When do you consider group B strep screening (vaginal and rectal)?

Answer 23

35-37 weeks

Question 24

When do you do biweekly prenatal fetal testing (non stress test and amniotic fluid index)?

Answer 24

41 and up weeks