NTR 109 LIFE CYCLE (PREGNANCY) OUTLINE Lecture 11

NTR 109 LIFE CYCLE (PREGNANCY) OUTLINE Lecture 11 - Lecture...

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Lecture 11 Life Cycle PREGNANCY 0. Preparing - establish good eating habits - strive for appropriate: Well nourished and healthy. Neural tube defects can develop 28 days after conception Adquate folate before pregnancy can decrease NTD by 70% Planned Pregnancies Have the Best Outcome 0. Many practices can be harmful to the fetus 1. Minimize exposure even prior to conception 2. Nutrition is important 3. ~50 % of all pregnancies are unplanned The First Trimester 1. First 13-14 weeks of pregnancy 2. Rapid increase in cell number and size 3. Nutritional deficiency or toxicity 0. Can be harmful to embryo (first 8 weeks) 4. Medication, Radiation, Trauma 1. Can be harmful to embryo
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5. ~ Half of all pregnancies miscarry during the first trimester The Second Trimester 4. Fetus begins to look more like an infant 5. Still susceptible to toxin exposure 6. Preparation for lactation 2. Increase of 2-4 lbs in breast tissue 3. Deposit of fat issue 7. Nutritional deficiency at this time affects mother’s ability to breastfeed The Third Trimester 6. Rapid growth 4. 2 x length (7-9 pounds, 20 inches) 5. 2x – 3x weight 7. Transfer of fat, calcium, and iron to fetus during the last month 8. IRON 6. Fetus may deplete mother’s store of IRON if intake is low A Successful Pregnancy 0. Mother’s physical and emotional health
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1. Infant: 38-42 weeks : full term pregnancy, less than 38:pre term 7. > 37 weeks gestation 8. Birth weight > 5-1/2 pounds 9. Sufficient lung development 10.The longer the gestation, the less the: Low Birth weight 9. Infant weighs < 5-1/2 lbs 10. 40% more likely to die by 1 y.o. 11. Lower: IQ 12. Short stature Developmental delays Maternal Obesity 13. Healthy weight before pregnancy 14. Risks - Infant is: Larger & born:later (greater than 9lbs :associated with diabetes, obesity) - 2x risk for neural tube defects - Gestational DM,HTN, infections after birth more likely Pregnancy Events 15. Fertilized ovum or zygote implanted uterine wall 16. Embryo –3 -8 wk after conception(.5 inch long) - within 35 days after conception heart beats can be heard 17. Fetus – 8 wks to birth(1inch long) – CNS, digestive system, circulatory system. .
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Nutrient Deficiency Risk 18. Young adolescents 19. Multiple pregnancies 20. < 18 months (????) between pregnancies 21. Inadequate diet 22. Underweight, overweight 23. Twins, triplets, etc Need for Nutrition 0. CALORIES - 1 st trimester
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This note was uploaded on 03/22/2011 for the course NTR 101 taught by Professor Chabot during the Spring '11 term at Buffalo State.

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NTR 109 LIFE CYCLE (PREGNANCY) OUTLINE Lecture 11 - Lecture...

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