Week 1 Obstetrics

Question 1

How long is full term pregnancy

Answer 1

37-40 weeks or 260 days

Question 2

What maternal changes happen during pregnancy

Answer 2

Circulatory system
Respiratory system
Genital tract
GI system
Metabolism

Question 3

What maternal changes happen during pregnancy

Answer 3

Circulatory system
Respiratory system
Genital tract
GI system
Metabolism

Question 4

What changes dose that circulatory system take during pregnancy

Answer 4

1.Blood volume increases 12.-1.6L or 45% to meet metabolic demands. Increased RDC count for increased need for iron.
2. Increased WBC count for increased stress in 3rd trimester
3.Cardiac output: 40-50% increase
4. HR: 20-25% or 10-20bmp increase
5. BP: SBP minimal increase DBP 20% increase

Question 5

Weight gain during pregnancy

Answer 5

Baby: 7-8ibs
Placenta: 2-3 ibs
Amniotic fluid: 2-3 ibs
Breast tissue: 2-3ibs
Blood supply: 4ibs
Stored fat: 5-9ibs
Enlarged uterus: 2-5 ibs
Total= 25-35 ibs

Question 6

Respiratory system changes during pregnancy

Answer 6

1. Diaphragm forced up
2. Stuffy and runny nose and epistaxis (nose bleeds)
3. 02 consumption 30-40% increase
4. Resp rate slightly increased
5. Tidal volume 30-35% increase
6. FRC 25% decreased

Question 7

GI system changes during pregnancy

Answer 7

1. Elevated progesterone levels causing nausea and vomiting 6-14 weeks
2. Crowding of the digestive system causing heart burn

Question 8

Prenatal development stages

Answer 8

Germinal stage: the division of cells and implantation of the blastocyst
Embryonic stage: the development of the neural tube and organs
Fetal stage: continued growth of organs and physical development in preparation for birth

Question 9

What are Braxton hicks contractions

Answer 9

False labor pains that are contractions of the uterus that are typically felt as early as the 2nd trimester.
It is the body’s way of preparing for labor but are not a indicator that labor has begun

Question 10

What happens in stage 1 of labor

Answer 10

1.Contractions start and increase in frequency, strength, and length
2. The fetus descends into the pelvis
3. The cervix softens
4. Dilation until 10cm

Question 11

Stage 2 of labor

Answer 11

Pt feels the need to push and is fully dilated
This stage ends when baby is delivered

Question 12

Stage 3 of labor

Answer 12

Placenta delivery usually occurs after 5-30min
When placenta is being delivered there will be:
1.Lengthening of the cord
2. Sudden gush or trickle of blood
3. Uterine contraction

Question 13

Phases of normal delivery

Answer 13

1. Decent: baby moves down toward the pelvis
2. Flexion: fetal chin to chest
3. Internal rotation: the baby turns toward the pelvis
4. Extension: birth with head facing down
5. Restitution: baby’s head rotates to the side
6. External rotation: baby turns to deliver shoulder
7. Expulsion: birth of baby

Question 14

Oxytocin med info

Answer 14

Class: hormone
Action: oxytocin promotes uterine contractions by increasing intracellular calcium levels
Onset: 3-5 mins
Half-life: 2-3 hours
Duration: 1-6 min

Question 15

Oxytocin med info

Answer 15

Class: hormone
Action: oxytocin promotes uterine contractions by increasing intracellular calcium levels
Onset: 3-5 mins
Half-life: 2-3 hours
Duration: 1-6 min