Pregnancy and lactation Flashcards

1
Q

What are the nutrition stages of life?

A
  1. prior to pregnancy
  2. during pregnancy
  3. after pregnancy
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2
Q

At no stage of life is nutrition most crucial. When?

A

pregnancy and infancy

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3
Q

Adequate nutrition is essential for what from conception through the end of first year of age?

A

tissue formation, neurologic development, bone growth

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4
Q

Healthy development of the placenta depends on what?

A

adequate pre-pregnancy nutrition

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5
Q

What are the support tissues for the baby?

A
  1. uterus
  2. placenta
  3. umbilical cord
  4. amniotic sac
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6
Q

What is the first event of pregnancy?

A

fertilization and cell division

fertilized ovum (zygote)

  • single cell that divides rapidly to become a blastocyst
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7
Q

What is the second event of pregnancy?

A

Implantation (during the first week)

  • blastocysts embeds in the uterine wall
  • placenta development begins
  • crucial time for development
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8
Q

What happens at the first 6 weeks of pregnancy?

A

rapid physical changes of the embryo

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9
Q

What happens at 8 weeks?

A
  • complete nervous and digestive symptoms
  • well-defined fingers and toes
  • facial features begin
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10
Q

What happens at the last 7 months

A
  • cell division and development of organs
  • 39-42 weeks for full gestation
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11
Q

What is the average birth weight?

A

6.8-7.9 pounds

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12
Q

When is the zygote development?

A

0-2 weeks

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13
Q

When is the embryo development?

A
  • critical period
  • 2-8 weeks
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14
Q

When do you see signs of placental formation?

A

4th week

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15
Q

What is embryogenesis?

A

rapid development stage

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16
Q

When is the fetus susceptible to nutrient deficiencies?

A

first trimester (13-14 weeks)

17
Q

Why is folate crucial for pregnancy?

A

protein metabolism and DNA synthesis

  • 400 µg/day (prior pregnancy)
  • 600 µg/day if pregnant
18
Q

Which type is better synthetic folate or dietary?

A

1.7 times more bioavailable than dietary folate

19
Q

when is taking folate the most crucial?

A

first 28 days after conception

20
Q

What happens when folate deficiency?

A

spina bifida

21
Q

Epigenetics

A

genes can be turned on or off

22
Q

what is the carb intake for pregnant women?

A

175 g per day

23
Q

What is the primary metabolic fuel of the developing fetus?

A

Glucose

24
Q

When is the amount of protein needed for pregnant women?

A

25 grams per day higher
than for non-pregnant women

25
Q

What is a good source of lipids for pregnant women ?

A

oily fish consumption (sardines)
- low mercury fish

26
Q

Folate intake should increase by what during pregnancy?

A

50%

27
Q

What percentage of Vitamin B12 should be increased when pregnant?

A

8%

  • regenerate the active form or folate
  • meat, dairy, eggs
28
Q

fetal demand for iron increases further when?

A

last trimester

29
Q

Vitamin C protect from what?

A

free-radicals that are looking for damage

  • citrus fruits, broccoli, kiwi
30
Q

Lack of Vitamin A can cause what?

A

risk of cleft lip, heart defects, and abnormalities in the central nervous system

31
Q

Vitamin D is important for what when pregnant?

A

calcium homeostasis ( bone develoment)

32
Q

Lack of Vitamin D when pregnant can cause what?

A

preeclampsia, increase diabetes, asthma

33
Q

What is preeclampsia?

A

pregnancy complication characterized by high blood
pressure and signs of damage to another organ system, often the kidneys.

If left untreated, it can progress to eclampsia, a condition characterized by
seizures and kidney failure and, if untreated, fetal and/or maternal death

34
Q
A