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Advanced Ante Exam 3
Advanced Ante Exam 3
88
Nursing
Graduate
12/03/2014

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Term
Carbohydrate intolerance of variable severity with onset or first recognition during pregnancy
Definition
GDM
Term
incidence increasing as obesity increases
Definition
GDM
Term
What are some potential problems for GDM?
Definition
Macrosomia
–– Operative birth
– Birth trauma
• Preeclampsia
• Diabetes and obesity in offspring
• Neonatal hypoglycemia
• Increased perinatal morbidity and mortality
Term
Define macrosomia
Definition
Variously defined as birth weight > 4000gms, >4500 gms, or >90% for gestational age
Term
What is the number one way to reduce morbidity associated with GDM?
Definition
Glycemic control reduces risk of all the above
Term
Increased glucose leads to increased
Definition
adverse outcome
Term
Review the Physiology of GDM
Definition
Insensitivity to insulin, know as insulin resistance→→
• Excess glucose carried to fetus →→
• Fetal pancreas reacts by producing extra insulin →→
• Stimulate glycogen storage →→
Excess glucose stored as fat →→
• Fetal macrosomia
Term
what is the timing for screening for GDM?rationale ?
Definition
Serum screen @ 24-28 weeks
– Diabetogenic effects of pregnancy are present at this point in gestation
Term
What women are dx with overt diabetes during pregnancy?
Definition
High risk women found to have diabetes at the 1st visit receive a diagnosis of overt
diabetes, not GDM
Term
What are the screening parameters for women with high risk for GDM?
Definition
Screen at 1st visit or as soon as feasible
– Repeat @24-28 weeks if negative
Term
Women found to have diabetes at their first prenatal visit are considered to have
Definition
overt diabetes,not GDM
Term
The threshold value for the 1hr GTT is
Definition
Threshold values range from 130-140
Term
what value is dx for GDM with a 1hr GTT?
Definition
>200
Term
Measures the % of hemoglobin that is coated with sugar (glycosolated)
Definition
HgA1C
Term
used in women at high risk who are diagnosed for the 1st time with DM at the 1st
visit
Definition
HbA1C
Term
What is GDM?
Definition
Increased cellular resistance to insulin due to pregnancy changes,
Term
If pt has good glycemic control during pregnancy, what can she expect for her pregnancy outcome?
Definition
her pregnancy course is most likely WNL
• Goes away for most women after birth
Term
Reveiw dietary management for GDM
Definition
Often referred to dietician, still need
immediate diet counseling by midwife
• Carbohydrates limited to 35-40% of diet
• Eat less carbohydrate at breakfast than at other meals: this is when insulin resistance is the
greatest
• Eliminate refined sugars (cake, cookies, pies, soda etc)
• 3 meals plus 2 snacks
• Choose foods high in fiber (fruit, whole wheat and grains)
• Avoid ketosis
Term
Reveiw exercise management for GDM
Definition
Regular exercise increases the efficiency of insulin
• Some studies show this to be just as effective as diet
• This is an important part of teaching & discussion!
• Brisk walking, swimming, biking daily 20-30 minutes
Term
Home glucose monitoring should occur how often?
Definition
4x daily
Term
FBS and 2 hour postprandial after each meal readings are expected to be
Definition
FBS<95
– 2hour <120
Term
Fetal survellience of mothers with good glycemic control
Definition
FMC at 34-36 weeks
– Biophysical profile 2X’s/week starting 40 weeks
– Await spontaneous labor, typically up to 41 weeks
Term
what are the risk factors for development of DM later in life?
Definition
Obesity
– Early gestational age at diagnosis of GDM
– Degree of abnormality of postpartum glucose tests.
Term
When is it normal to find fFN in the vaginal and cervical secretions?
Definition
prior to 16-20wks and at term labor
Term
FGR is linked to what adult health complications?
Definition
HTN, stroke, and kidney disease
Term
At what gestation should women begin progesterone thearpy for tx of PTL?
Definition
at 16-24wks
Term
when is vaginal progesterone appropriate?
Definition
without a hx of ptl or birth, but incidental finding of short cervix
Term
FGR is caused by placental abnormalities such as
Definition
abnormal placentation, incomplete adherence or trophoblastic invasion, placental site hypoperfusion, and others
Term
review risk factors for IUFD
Definition
placental problems, poor fetal growth, infections, chronic maternal health problems, cord accidents
Term
Certain risk factors also are associated with stillbirth. Some of these include
Definition
Maternal age over 35
Maternal obesity
Multiple gestation (twins or more)
African-American ancestry
Term
The CDC recommends that all pregnant women receive how much iron?
Definition
30 mg of supplemental iron.
Term
Diagnostic tests for IDA include__________. A serum ferritin confirms ________.
Definition
Diagnostic tests include a CBC with indices. A serum ferritin confirms iron deficiency anemia
Term
Pregnancy enhances GI absorption of what nutrient?
Definition
iron
Term
know the values for H and H that indicate anemia in pregnancy?
Definition
1st and 3rd trimester: 11 and 33%
2nd trimester: 10.5 and 32%
Term
Hemodilution during pregnancy is caused by an
Definition
increase in plasma blood volume: 1000ml total blood volume
Term
Hbg-S indicates
Definition
sickle cell anemia
Term
what is the lifespan of a Hbg-S?
Definition
20-30 days
Term
what are complications of a sickle cell disease?
Definition
vaso-occlusive crisis, infection, necrosis, acute or chronic pain
Term
How is sickle cell disease diagnosed?
Definition
the most common test is a hbg electrophoresis
Term
Hbg AS indicates
Definition
sickle cell trait
Term
sickle cell trait is associated with
Definition
increased asymptomatic bacteriuria and UTI
Term
AA women with sickle cell trait have increased risk of
Definition
VTE when using hormonal contraceptives.
Term
Thalassemia alpha is caused by a
Definition
partial deletion or complete deletion of the alpha chain of hemoglobin
Term
what groups most often have thalassemia?
Definition
those with African or Asian decent
Term
how is thalassemia dx?
Definition
rbc evaluation; hypochromic and microcytic and the hgb level is depressed
Term
what causes beta thalassemia?
Definition
impaired beta globin chaining or alpha chain instability
Term
How do you tx thalassemia?
Definition
iron and folate supplements
Term
megaloblastic anemia is rare in the US but is most often caused by
Definition
folate deficiency
Term
megaloblastic anemia is most often seen in women who do not consume enough
Definition
green leafy veggies, legumes, or animal protein
Term
As megaloblastic anemia worsens so does
Definition
anorexia
Term
Dx of megaloblastic anemia is
Definition
low plasma folic acid concentration and peripheral blood smear that demonstrate macrocytes.
Term
magaloblastic anemia is difficult to dx when there is concurrent
Definition
IDA
Term
tx of megaloblastic anemia includes
Definition
folic acid, iron supplements, and dietary changes
Term
caused by a cluster of IgG antibodies directed against one or more platelet gylcoproteins
Definition
idiopathic thrombocytopenic purpera (ITP).
Term
In ITP, platlets which are covered in antibodies are
Definition
destroyed prematurely
Term
ITP has been associated with
Definition
lupus, lymphomas, leukemia, and other systemic diseases
Term
When should tx of ITP take place?
Definition
when platlet counts are less than 30-50k
Term
What is the tx for ITP?
Definition
prednisone and IVIG
Term
gestational thrombocytopenia can be
Definition
normal in pregnancy
Term
if ITP does not resolve with conventional tx the other alternative is
Definition
spleenectomy
Term
Gestational thrombocytopenia is most likely due to
Definition
hemodilution and increased splenic mass
Term
MCV volume greater than 100 indicate
Definition
macrocytic anemia
Term
MCV greater than 115 almost always indicates
Definition
folate or B12 deficiency
Term
B12 deficiency is most often caused by _____ or in those who have had_____
Definition
crohn's disease or gastric resection
Term
What is the most protective factor for development of GDM?
Definition
age less than 25yrs
Term
What are risk factors for GDM?
Definition
race, first degree relative with diabetes, hx of GDM, women who's own birth weight was less than 2500g, hx of macrosomic baby, hx of bad outcome in pregnancy, and hx of stillbirth
Term
IDA is associated with what affects on the nenonate?
Definition
PTB and low birth weight
Term
What maternal complications have been implicated with increased Iron supplementation?
Definition
GDM, and ptb
Term
A short cervix found in the early or late 2nd trimester has been associated with______ptl.
Definition
increased
Term
What are things that women can do to decrease the risk of ptl or birth?
Definition
improved weight gain and nutrition, improved dental care prior to pregnancy, avoiding cocaine or smoking, dx and tx of asymptomatic bacteriuria, reduced occupational fatigue, and use of progesterone
Term
what doubles the occurance of ptl and birth?
Definition
ow pre-pregnancy weight....<19.8%
Term
Women who eat less than 3 meals per day and two snacks are at increased risk for
Definition
delivering prematurely
Term
A short cervical length is usu defined up to ____wks gestation but may be dx up to ____wks gestation.
Definition
24 to 28wks
Term
Where is fetal hemoglobin located?
Definition
Alpha chains
Term
What type of anemia can affect the fetus due to the location of fetal hemoglobin?
Definition
Alpha Thalassemia
Term
Vaginal progesterone is indicated prior to 24wks when the cervix is _____mm in length.
Definition
20mm
Term
women over the age of 30 are at higher risk for
Definition
multiple gestation
Term
What are common problems in women who have a multi fetal pregnancy?
Definition
inadequate nutrition, GDM, pre-e, and PTL,
Term
symmetrical FGR occurs during earlier gestation and is associated with
Definition
severe infection and chromosomal abnormalites
Term
asymmetrical FGR occurs during the later parts of pregnancy and is associated with
Definition
HTN
Term
Which FGR is most common?
Definition
asymmetrical
Term
What are strategies for the management of IUGR?
Definition
adequate dehydration, diet rich in protein and iron, conservation of energy, and decreasing workload responsibilities
Term
What ethnic groups are most at risk for macrosommia?
Definition
AA, Asian American, and Latin American
Term
Polyhydramnios is often benign but if it is severe hydramnios is often associated with
Definition
CNS abnormaliteis, hydrops, and diabetes for example
Term
Oligo is most often associated with
Definition
renal anomalies
Term
decreased or absent fluid causes
Definition
limb contractures, compressed face, hypoplastic lungs, renal agenesis, and potters syndrome with bilateral renal agenesis
Term
Age is a single risk factor for
Definition
IUFD
Term
______ contributes to folate deficeincy
Definition
Ethanol
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