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Nutritional Science: Pregnancy
N/A
48
Other
Undergraduate 3
03/02/2013

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Cards

Term
RDA for Calcuim During Pregnancy and NPNL
Definition

Pregnancy: 1000mg

NPNL:1000mg

Term
RDA for Protein During Pregnancy and NPNL
Definition

Pregnancy RDA: 70-75 g/d

Twin Pregnancy RDA: 95-105 g/day

NPNL RDA:45-50 g/d 

Term
What are the minimal carbohydrate requirements during pregnancy? dietary fiber? explain.
Definition

Mimum of 175 g/d carbohydrates 

28 g/d dietary fiber 

30 g/d fiber recommended to reduce incidence of constipation (consume fresh fruits and vegetables as well as whole granes with adequate fluids) 

Term
What are the energy requirments during pregnancy by trimester?
Definition

1st Trimester: 0 additional calories needed

2nd Trimester: +340 kcal/d 

3rd Trimester: +450 kcal/d

Term
How much additional Iron is used during pregnancy and how is it distributed?
Definition

+1000 mg of Iron are used during pregnancy. The iron distribution is as follows:

450 mg=>increase in RBC mass

350mg=>fetus and placenta

250mg=>blood loss at delivery

 

Term

RDA for Vitamin D during pregnancy vs NPNL?

What are the risk factors for Vit D inadequacy in pregancy?

Definition

Pregnancy RDA: 600 IU = 15 ug

NPNL RDA: 600 IU = 15 ug

Risk factors: 

  • vegan diet or low intake vit D fortified milk
  • limited sum exposure, dark skin or consistent use of sunblock
  • obesity
  • Lack of Vit D will interfere with calcuim absorption
Term

RDA for Choline in Pregnant vs NPNL ?

Can the body make choline? Explain.

What is a good source?

Definition

RDA for choline in preg: 450mg 

RDA for choline non preg: 425 mg

The body can make choline but it is conditionally essential as it can not be produced in enough quatities fast enough. A great source of choline is egg yolk and meat therefore it is a concern in vegan diets. 

Term
RDA for Iron during Pregnancy and NPNL?
Definition

RDA for Iron during Pregnancy: 27 mg

RDA for Iron in NPNL women: 18 mg

Term

RDA for Vitamin A during pregnancy and NPNL?

What sources of Vitamin A are recommended and Why?

Definition

Pregnancy RDA for Vitamin A: 770 ug

NPNL RDA for Vitamin A: 700 ug

Betacarotine sources of Vitamin A found in fruits and vegetables are recommended as they are safer and have not been shown to cause toxicity. Some acne medications containig retinol are not good during pregnancy because they can cause Vitamin A toxicity in the fetus. 

Term
RDAs for essential fatty acids and DHA+EPA during pregnancy
Definition
  • linoleic acid RDA: 13 g/d (not difficult to get in an american diet)
  • alpha lenolenic acid (omega 3) RDA: 1.4 g/d (harder to get)
  • Sucessive forms of omega 3 include DHA and EPA which should be consumed at 300 mg/d 
  • 8-12 oz/ week of fish recommended
Term
How much of mothers blood glucose is used by the placenta?
Definition
30-40%
Term
How are amino acids transferred to the fetus
Definition
Active transport and some simple diffusion however, fetus usually has 2-3 higher concentration of amino acids in their blood than the mother necesetating majority active transport for amino acid transfer.
Term
How are free fatty acids and ketone bodies transferred to the fetus?
Definition
Free Fatty Acids and Ketone bodies are trasferred to the fetus via passive diffusion. Note: too many ketone bodies are bad for the fetus in terms of cognitive development because the brian prefers glucose to function.
Term
What role does sodium play in maternal blood volume and composition, and how is it maintained?
Definition
Sodium is very important in pregnant women as fluid retention occurs. Water follows ions so in order to successfully increase plasma volume and intracellular fluids, sodium ions must be utilized. Increase sodium retention is maintained via increased aldosterone levels.
Term
Explain the Pregnancy Nutritional Assessment
Definition

Anthropometric- the amount and pattern of weight gain 

Biochemical- anemia and glucose tolerance

Clinical- risk factors: age income BMI smoking drinking high parity anemia presense of chronic disease

Dietary- adequacy of food intake and my plate; cultural factors; pica; supplements; common concerns

Economic- WIC

Term
Definition of Gynecologic Age (GA)
Definition

number of years past menarch

GA<3 = much greater risk for baby and mom

Term
What are the characteristics of Female Adolescent growth ?
Definition

Menarche occus at the end of growth spurt

2-4 more inches in growth following menarche

the pelvis contiues to grow until 18 years of age (provides and issue when giving birth, pelvis may not be wide enough for the baby to fit so my have to get a cesarian section)

Term
What are the two main risks associated with adolescent pregnancy?
Definition

Low birth weight (an increase in premature births)

Preeclampsia

Term
Does a growing mom compete with the fetus for nutrients, if so who wins?
Definition

yes the growing mom <19 years of age competes with the fetus for nutrients and wins 

teenagers who grow during pregnancy have smaller babies ( growth of teen accurately measured by length of lower leg) 

Term
What are two main nutritional requirements in adolescent pregnancy that are higher that other pregnant mothers?
Definition
During adolescent pregnancy the mother requires more calories than other mothers (mainly because they are still growing) and they have a higher requirement for calcuim of 1300 mg as opposed to 1000 mg (once again because they are still growing).
Term
Definition of chronic hypertension
Definition

Chronic hypertension is hypertension that is present before preganancy or diagnosed before 20 weeks of pregnancy as well as hypertension diagnosed during pregnancy that does not disappear after pregnancy. 

 

systolic 140 mm Hg

or

diastoic ≥ 90 mm Hg

Term
Definition of Gestational Hypertension
Definition

Gestational Hypertension is diagnosed when elevated blood pressure occurs after mid-pregnancy. This condition is NOT accompanied by proteinuria. 

If blood pressure returns to normal 12 weeks postpartum then it is called TRANSIENT HYPERTENSION if it does not return to normal it is then diagnosed as chronic hypertension. 

Term
Definition of Preeclampsia
Definition

Preeclampsia is a condition that only occurs during pregnacy usually after 20 weeks gestation marked by increased BP systolic:≥140 mm Hg or diastolic≥90 mm Hg

it is accompanied by proteinuria (>0.3 g protein in 24 hr urine sample) 

Term
Definition of Eclampsia
Definition
Eclampsia is a condition that succeeds preeclampsia and involves seizures.
Term
Definition of Preeclamsia superimposed on chronic hypertension.
Definition
Preeclampsia superimposed on chronic hypertension is characterized by the development of proteinuria during pregnancy in women with pre-existing chronic hypertension. REMEMBER chronic hypertension alone is NOT associated with proteinuria.
Term
What are the risk factors for chronic hypertension?
Definition
  • african american
  • obese
  • >35 years of age
Term
What are the outcomes for mother and baby during preeclampsia?
Definition

Mother

  • Early delivery by cesarean section
  • acute kidney dysfunction
  • increased risk for gestational diabetes, hypertension, and type 2 diabetes later in life

Baby

  • Growth restriction
  • Respiratiory distress syndrome 
Term
What could high hemaglobin concentrations during pregnancy > 130 g/L represent?
Definition
If hemoglobin concentrations are high you can immediately assume plasma expasion/ volume is low. Low plasma volume can be  seen in preeclampsia- eclampsia, and low sodium diet
Term
While the cause of preeclampsia is unknow what abnormalities in physiology have been associated with preeclampsia?
Definition
Abnormal implantation and vasculariztion of the placenta resulting in poor blood flow ===> poor perfusion of organs especially the placenta and the mothers kindey, liver and brain(eclampsia leads to seizures)
Term
What is the cure for preeclampsia?
Definition
Delivery
Term
What is the goal of treating hypertension disorders of pregnancy?
Definition
The goal of treating Hypertensive disorders during pregnancy is to prevent eclampsia.
Term
What are the risk factors for preeclampsia?
Definition
  • First preganancy in the young and old 
  • Obesity and insulin resistance
  • underweight
  • multiple fetuses
  • history of preeclampsia 
  • poor calcium and vitamin D status
  • Pro-inflamitory, pro-oxidant stress diet ( diet lacking antioxidants) 
Term
What are the symptoms of Preeclampsia-eclampsia?
Definition
  • increased blood pressure, and proteinuria
  • decreased plasma volume  expansion (hypovolimeia) 
Term
What factors are associated with the increase in multifetal preganacies?
Definition
  • assisted reproduction techniques
  • increase in the # of pregnant mothers >35 yrs old
  • increase in the rate of obesity (however, it is difficult to get pregnant when obese because ovulation is unpredictatble)
Term
How much weight gain does the institute of medicine recommend for multifetal pregnancies?
Definition
25-54 lbs of weight gain recommened for multifetal pregnancies
Term
How much weight should be gained throughout trimesters in twin pregnancies?
Definition
In twin pregnancies, mothers should gain 0.5 lbs a week in the first trimester (0-13 weeks) and 1.5 lbs a week in the second and third trimesters.
Term
How much weight should be gained throughout trimesters for triplet pregnancies?
Definition
In triplet pregnancies 1.5 lbs/wk should be gained through out each trimester with a total weight gain of about 50lbs.
Term
What are the nutritional needs during multifetal pregnancies?
Definition

Energy: +500-600 kcal/day

Protein: +50g protein/day => 95-100 g/day 

 

Term
what kind of hormone is insulin?
Definition

Insulin is an anabolic hormone.

 

Note: even though insulin effects entire metabolism we measure glucose as a marker for insulin abnormalities. 

Term
What are the characteristics of Diabetes Mellitus (DM)?
Definition
Diabetes Mellitus is characterized by increased blood glucose due to the failure to produce insulin or the lack in response to insulin.
Term
In terms of glucose, what does the abnormal functioning of insulin lead to?
Definition
The lack of insulin or lack of response to insulin leads to hyperglycemia and glucose intolerance (general term refering to higher than normal blood glucose levels).
Term
Definition of Gestational Diabetes Melitus (GDM)
Definition

Gestational Diabetes Mellitus is defined as glucose intolerance that is first detected during pregnancy.

 

 

Note: if glucose intoleracnce does not go away after pregnacy it is NOT GDM

Term
What is a cause of secondary diabetes mellitus and how does it relate to insulin function?
Definition
Cystic fibrosis can lead to secondary diabetes mellitus as  it causes the destruction of the pancreas over time impairing the pancreas's ability to make insulin.
Term
Maternal risks due to Gestational Diabetes Mellitus
Definition

The maternal risks due to Gestational Diabetes Mellitus include:

  • Gestational Hypertension or Preeclampsia
  • C-Sectopm due to LGA infant 
  • Development of Type 2 DM later in life (60% of women develop type 2 DM 10 yrs following GDM occurance) 
Term

Fetal Risks due to Maternal Hyperglycemia:

Conception to Perinatal

Neonatal 

Long term 

Definition

Fetal risks of maternal hyperglycemia 

  • Conception to Perinatal: LGA trauma, congenital anomalies, miscarraige
  • Neonatal: hypoglycemia, hypocalcimia, respiratory distress syndrome
  • Long term: increased risk of childhood obesity, Type 2 DM, obesity and hypertension later in life 
Term
Risk Factors for Gestational Diabetes Mellitus
Definition

Risk factors for Gestaional Diabetes Mellitus

  • > 35 years old
  • obese, over weight 
  • history of glucose intolerance 
  • runs in family 
  • Previous LGA infant 
  • Member of a high risk ethnic group: African americans, native americans, hispanics 

Note: about half of women with GDM did not have the above risks

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