OB Week 3 PP

Genes are best described as:

Units of heredity located on DNA

A chromosome contains:

Long strands of DNA

Which inheritance pattern requires only ONE affected parent to pass the disorder?

Autosomal dominant

In autosomal recessive inheritance:

Both genes must be abnormal

X-linked recessive disorders affect which group most often?

Males

Which are nursing responsibilities in genetic counseling?

Taking family history, Explaining testing, Providing emotional support, Protecting confidentiality

Which nursing action is MOST important after genetic test results are received?

Monitor emotional response

Fertilization normally occurs in the:

Fallopian tube

The zygotic stage begins with:

Fertilization

During which stage do major organs begin forming?

Embryonic

The ectoderm develops into:

Skin, CNS, Special senses

The mesoderm forms:

Skeletal system, Reproductive organs, Circulatory system, Urinary organs

The placenta functions to:

Exchange nutrients and waste

Placental hormones include:

hCG, Progesterone, Estrogen, Relaxin

Which vessel carries oxygenated blood from placenta to fetus?

Umbilical vein

Functions of amniotic fluid include:

Cushioning fetus, Temperature regulation, Preventing cord compression, Musculoskeletal development

The foramen ovale connects the

Right and left atria

Which fetal shunt bypasses the lungs?

Ductus arteriosus

The ductus venosus bypasses the:

Liver

Main goal of preconception care:

Promote maternal-fetal health before pregnancy

Preconception assessment includes:

Nutrition, Immunizations, Substance use, Support systems

Naegele’s rule estimates:

Due date

LMP = January 10, 2026. Estimated due date?

Subtract 3 months = Oct 10
Add 7 days = Oct 17

Best method for dating pregnancy:

Ultrasound

A primigravida is:

First pregnancy

A nullipara has:

No viable births

Routine prenatal labs include:

CBC, Blood type, Rubella titer, HIV testing, Rh factor

Which test evaluates fetal chromosomal abnormalities early in pregnancy?

CVS

A nonstress test evaluates:

Fetal heart response to movement

Chadwick sign refers to:

Bluish discoloration of cervix

Goodell sign is:

Soft cervix

Hegar sign refers to:

Softening lower uterine segment

Presumptive signs of pregnancy include:

Amenorrhea, Nausea, Breast tenderness, Quickening

Positive pregnancy signs include:

Fetal heart tones

By 20 weeks, fundal height is usually at the:

Umbilicus

Leukorrhea during pregnancy is:

Thick white discharge

GI adaptations during pregnancy include:

Constipation, Heartburn, Hemorrhoids, Nausea

Physiologic anemia occurs because:

Plasma volume increases more than RBCs

A pregnant client becomes dizzy lying flat. Priority action?

Turn onto side

Pregnancy causes a hypercoagulable state because of:

Increased fibrinogen

Lordosis during pregnancy results from:

Shift in center of gravity

Skin changes in pregnancy include:

Linea nigra, Melasma, Striae gravidarum, Palmar erythema

hPL contributes to:

Insulin resistance

Which nutrient requirement increases significantly in pregnancy?

Iron

Recommended weight gain for normal BMI:

25–35 lb

Which statement indicates understanding of pregnancy self-care?

“Dental care is important during pregnancy.”

Lamaze focuses primarily on:

Breathing and relaxation

A doula:

Provides labor support

Ambivalence during pregnancy is:

Expected emotional response

Which nursing interventions promote healthy pregnancy adaptation?

Emotional support, Prenatal education, Nutritional counseling, Cultural sensitivity