Antepartum problems Flashcards

1
Q

gestational diabetes

A

any degree of glucose inteolerance with onset or recognition during pregnancy; identified during 2nd or 3rd trimester

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2
Q

diabetes goal

A

optimal outcome is strict maternal glucose control before conception and throughout the pregnancy

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3
Q

Insulin 1st tri

A

less insulin needed; risk hypoglycemia

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4
Q

insulin 2nd tri

A

gradually increase; need about back to baseline

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5
Q

insuline 3 tri

A

insulin dose above baseline (2-4x)

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6
Q

hormones that cause insuline resistance

A

HPL, prolactin, estrogen, progesterone, cortisol, insulinase

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7
Q

non-diabetics

A

pancrease compensates for insulin resistance

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8
Q

maternal complications with preexisting diabetes

A

miscarriage- 1st trimester
macrosomnia
hydramnios
ketoacidosis
hyperglycemia
hypoglycemia
preeclampsia
infection

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9
Q

fetal and neonatal risk preexisting diabetes

A

sudden and unexplained still birth
congenital malformations
birth injuries

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10
Q

prenatal evaluation

A

Laboratory test (pregestational): renal function, thyroid function, glycosylated hemoglobin A (HgbA1C)
Urine testing for UTI, glucose, protein at PN visits
Monitoring blood glucose levels & logging
Maintain FBS 65-105; 2 hr PP <120
Determination of birth date and mode of birth
Complications requiring hospitalization
Fetal surveillance/consider effects on fetus:
Additional ultrasound evaluations; measurement of MSAFP; echo; DFMC @ 28 wks; NST @ 32 wks
↑glucose in mom→fetal insulin production (structure similar to growth hormone)

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11
Q

preexisting dm- action

A

nutrition counseling, insulin (3rd tri especially), diet and exercise

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12
Q

GDM risk

A

fam hx
obesity
HTN
glucosuria
maternal age >25
more than 1/2 without risk factors

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13
Q

maternal GDM risk

A

preeclampsia
cesarean birth
dev type 2 DM later

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14
Q

neonatal GDM risk

A

macrosomia
birht injuries
electrolyte imbalance
hypoglycemia

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15
Q

OGTT

A

routine screening between 24 and 28 weeks

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16
Q

Intrapartume care GDM

A

monitor closely
complications: dehydration, hypo/hyperglycemia
may require a cesarean birth

17
Q

Postpartum care GDM

A

Insulin requirements decrease substantially (as little as 1/2 to ⅓ the pregnancy dose): the placenta was the major source of insulin resistance
Newborn: glucose source gone after delivery🡪hypoglycemia within 1 hour
Risk for preeclampsia/eclampsia, hemorrhage (overdistention &/or overstimulation-oxytocin), infection
Encourage breastfeeding (antidiabetogenic effect on child & decreased risk of childhood obesity if breastfed for at least 6 mos)
Contraception

18
Q

HTN types

A

chronic essential
gestational
preeclampsia

19
Q

chronic HTN

A

Present before the pregnancy or diagnosed before week 20 of gestation or persists beyond the PP period

20
Q

gestational HTN

A

SBP >140/90 on 2 occasions at least 4 hours apart, with previously normal blood pressure, after the 20th week of pregnancy
Resolves PP but may take 6-12 months

21
Q

Preeclampsia→eclampsia

A

Pregnancy-specific condition
Hypertension with proteinuria develops after 20 weeks of gestation in previously normotensive client; may develop PP
A vasospastic systemic disorder categorized as mild or severe
Decreased placental perfusion & hypoxia
Eclampsia: onset of seizure activity or coma in client with PreE with no history of seizure pathology

22
Q

Chronic hypertension with superimposed preeclampsia

A

Women with chronic hypertension may acquire preeclampsia or eclampsia

23
Q

PreE pathophysicology

A

Progresses along a continuum from mild to severe
Caused by disruptions in placental perfusion
Placental ischemia stimulates release of a substance toxic to endothelial cells
Poor tissue perfusion in all organ systems; increased peripheral resistance & BP
Reduced kidney perfusion

24
Q

PreE etiology

A

Signs and symptoms develop only during pregnancy and disappear after birth
Associated high-risk factors: history of preE, multifetal pregnancy, chronic hypertension, diabetes, renal disease, autoimmune disease
Associated moderate risk factors: family history, obesity, maternal age 35 & older, Black race, low SES, more than 10-year pregnancy interval

25
Identify and Prevent PreE
Assess: Edema Deep tendon reflexes Clonus RUQ/epigastric pain Headaches (frontal) Visual disturbance
26
diagnostic Cue
proteinuria (>0.3)
27
PreE effects on fetus
fetal growth restriction decreased amniotic fluid volume abnormal fetal oxygenation LBW preterm birht
28
preE sever features
BP 160/110 X 2, at least 4h apart or higher Massive proteinuria Platelet count <100,000 Abnormal liver function Progressive renal insufficiency Pulmonary edema Cerebral/visual disturbance
29
HELLP syndrome
Laboratory diagnostic variant of severe preeclampsia involves hepatic dysfunction, characterized by: Hemolysis (H) Elevated liver enzymes (EL) Low platelets (LP) Usually develops in antepartum period Malaise Influenza-like symptoms Epigastric/RUQ abdominal pain Symptoms worsen at night, better during daytime Can progress rapidly
30
HELLP increase risk for
pulmonary edema renal failure liver hemorrhage or failure disseminated intravascular coagulation placental abruption acute respiratory distress syndrome sepsis stroke fetal and maternal death
31
actions for gestational HTN and PreE without sever features
Maternal and fetal assessment: BP, urine, labs, S&S, DFMC, NST, fetal growth, amniotic fluid volume Activity modification See Patient Teaching
32
Preeclampsia with severe features
Greater risk for pregnancy complications→hospitalize Magnesium sulfate to prevent eclampsia (Box 12.3) (MED SHEET) Monitor BP, reflexes, urine output, cerebral status, presence of epigastric pain, tenderness, labor or vaginal bleeding Low stim environment/seizure precautions Antihypertensive therapy, if necessary (labetalol, nifedipine) Maternal eval: serial BP, symptom assessment, lab evaluation Fetal monitoring: ultrasound (fetal growth, fluid volume), NST/BPP Corticosteroids (betamethasone/dexamethasone) for fetal lung development up to 34 wks; deliver at 34 wks or greater
33
PreE with seve features actions
Intrapartum care Early identification of abnormal FHR & prevention of maternal complications Assess for signs of placental abruption (vaginal bleeding, tense tender uterus, uterine tachysystole) Assess CNS, CV, pulmonary, hepatic, renal Seizure precautions Future health care Increased risk for severe preeclampsia with future pregnancy, development of chronic hypertension and CV disease later in life–educate on lifestyle changes
34
Eclampsi
Prevention! -- Prenatal care for assessment and early interventions Usually preceded by premonitory S&S: persistent headache, blurred vision, severe epigastric or RUQ pain, altered mental status Immediate care: ensure patent airway and patient safety How would you respond to a patient having a seizure???
35
associated with chronic HTN
placental abruption superimposed preeclampsia increase perinatal mortality fetal effect - growth restriction - preterm birth
36
Anithypertensive meds
labatalol- safe for breastfeeding