110 - pregnancy 0.0 / 5 ? Human BiologyPregnancyUniversityNone Created by: Kate BlakeboroughCreated on: 24-04-15 13:59 What percentage of women fall pregnant in first and second year of trying? 84% first year and 92% second year 1 of 25 What % of couples experience problems getting pregnant? 15% 2 of 25 Factors affecting fertility Body weight, undernutrition, eating disorders, extreme exercise, caffeine, poor iron stores, achohol and smoking 3 of 25 How does a low BMI affect fetility? Irregular menstuation, low body fat stores of under 22% 4 of 25 How does a high BMI affect fetility? Not ovulating 5 of 25 Why is obesity a problem with pregnancy? Approx 50% women childbearing age are overweight, 15.6% of pregnant women are obese 6 of 25 Why is being obese whilst pregnant of concern? Higher risk of: impaired glucose tolerance, gestational diabetes, miscarriage and pre - eclampsia 7 of 25 How much weight is a pregnant woman expected to gain? 10-12.5 kg 8 of 25 What hormone causes women to feel ill during pregnancy and at what weeks does this occur? Human chronic gonadotrophin for the first 12-16 weeks (50-90% feel nausea) 9 of 25 How much folate should a women take preconceptually? 0.4 mg 10 of 25 How much folate should a women take when pregnant? 0.5 mg folic acid plus 200 micro grams of folate = 5-7mg day 11 of 25 What is iron needed for in pregnancy? Foetus needs iron store for first 6 months and maternal RBC mass needed 12 of 25 What does iron not need to be increased during pregnancy? Woman not menstuating and enhanced reabsorbtion 13 of 25 How many extra calories are required when pregnant? 200 Kcal 14 of 25 How much additional protein is required when pregnant? 6g day = 51g/ D 15 of 25 How much additional Vit C is required when pregnant? 10mg = 50mg 16 of 25 How much additional riboflavin is required when pregnant? 0.3mg = 1.4mg 17 of 25 What foods should a pregnant woman avoid? High in vitamin A, limit fish due to mercury, limit caffeine to 200mg/d, no alcohol (Fetal alcohol syndrome) and avoid food poisoning hazards 18 of 25 What stimulates lactation? Suckling = Hypo telling anterior pituitary to produce prolactin = cells for milk producion 19 of 25 What stimulates milk ejection? Oxytocin from the Posterior pituitary 20 of 25 How many litres of fluid do you need a day when lactating? Over 2 litres 21 of 25 How many more calories do you need a day when lactating? 450 - 570 Kcals 22 of 25 How more calcium do you need a day when lactating? 550mg 23 of 25 How more protein do you need a day when lactating? 11g 24 of 25 How mmore Vit D do you need a day when lactating? 10 micro gram 25 of 25
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