Diabetes Flashcards
Metabolic Disorders: Diabetes Mellitus
-
1st Trimester
> BG is lower in 1st tri, if already using insulin more at risk for Hypoglycemia -
2nd & 3rd Trimester
> pregnancy exerts a diabetogenic effect on maternal metabolic status; BG incrs
Insulin Resistance
As early as 14-16 weeks
Macrosomia
- Maternal Risk/Complication
-
Growth beyond a specific threshold, regardless of gestational age
> 4000 g (8 lb 13 oz) - 4500 g (9 lb 15 oz)
> or greater than 90th percentile
Macrosomia - Causes & Complications
-
Causes:
> diabetes in mom
> obesity in mom -
Complications
> shoulder dystocia
> uterine rupture or bleeding incrd
Hydramnios
polyhydramnios
- Maternal Risk/Complication
-
Too much amniotic fluid
> indigestion & heartburn
> constipation
> breathlessness
> swollen feet & legs
> UTIs
Ketoacidosis
- Maternal Risk/Complication
- BG above 250
- As well as unstable BG
Ketoacidosis - Risk Factors
- Pre-existing diabetes
- Gestational diabetes
- Infections
- Poor med compliance
Ketoacidosis - Symptoms
- N/V
- Stomach pain
- Incrd thirst polydipsia
- Incrd urination polyuria
- Rapid breathing tachypnea
- Fruity-smelling breath
- Drowsy, weak, or confused
Ketoacidosis - Treatment
- IV fluids
- Insulin
-
Electrolyte replacement
> potassium
Fetal/Neonatal Risks
- Sudden/unexplained stillbirth
-
Congenital malformations (heart/CNS)
> high BG during development of fetus
Care Management: Pregestational Diabetes - Antepartum
fetal eval: goal, risk for, test used
-
Goal:
> detect fetal compromise as early as possible and prevent intrauterine fetal death (IUFD)/stillbirth -
Risk For:
> neural tube defects: alpha-fetoprotein (AFP)/ultrasound done 16-18 weeks
> congenital cardiac anomalies -
Test Used:
> Non-Stress Test (NST): after 28 weeks, biophysical profile (BPP) or contraction test if NST is nonreactive
Care Management: Pregestational Diabetes - Antepartum
lab test
- Baseline renal function
- Glycosylated hemoglobin A1C
-
Urine testing
> ketones/glucose
How Often are Pregestational Diabetes pts Monitored
-
1st & 2nd Trimester
> every 1-2 weeks -
3rd Trimester
> 1-2x/week
Care Management: Pregestational Diabetes - Antepartum
health promotion, hospitalization
-
Hlth Promotion
> diet
> exercise: if uterine activity is detected stop exercise
> education on the need for incrd insulin in 2nd/3rd tri -
Diabetes may require hospitalization for dehydration and infection
> can lead to hyperglycemia & DKA
Care Management: Pregestational Diabetes - Intrapartum
monitor
complication
-
Monitor
> BG 90-110
> if baby is macrosomic then c-section birth is planned -
Complications
> unstable BG
> ketoacidosis
Care Management: Pregestational Diabetes - Postpartum
insulin requirements
Decrease
Care Management: Pregestational Diabetes - Postpartum
breastfeeding vs non-breastfeeding
- Breastfeeding = lower BG
- Non-breastfeeding = elevated BG
- Insulin needs will return to normal w/in 7-10 days if bottle feeding
-
Safety Education
> mom needs to check BG prior to feeding for risk of low BG
Care Management: Pregestational Diabetes - Postpartum
contraception
Ideal to let the body rest 1-2 years after pregnancy
Care Management: Gestational Diabetes - Antepartum
criteria
screen
- Fails 2+ oral glucose tolerance tests (OGTT)
Care Management: Gestational Diabetes - Antepartum
hlth promotion
- Diet
- Exercise
- Self monitor BG
- Education on insulin therapy
Care Management: Gestational Diabetes - Antepartum
fetal surveillance
fetal risks
-
Fetal Surveillance
> monitoring size of baby -
Fetal Risks
> macrosomia (common in GDM)
> neonatal hypoglycemia ( <BG of 40)
Care Management: Gestational Diabetes - Antepartum
maternal risks
- Incrd congenital malformation
- Preeclampsia
- Cesarean birth
- T2DM later in life
Gestational Diabetes Mellitus (GDM)
intrapartum & postpartum care
-
Intrapartum
> keep BG btwn 80-110 to prevent neonate hypoglycemia -
Postpartum
> risk for T2DM
> education on lifestyle changes