High Risk Neonate Flashcards
What high risk conditions are associated with prematurity?
Retinopathy of prematurity Bronchopulmonary dysplasia Hypo/hyper thermal Sepsis Intraventricular hemorrhage Necrotizing enterocolitis Effect of prematurity on growth and development
What two conditions are part of respiratory distress syndrome?
Retinopathy of Prematurity
Bronchopulmomary dysplasia
What conditions are associated with issues with gestational age?
SGA
LGA
IUGR
Post maturity syndrome
What are two types of IUGR?
Symmetric IUGR
Asymmetric IUGR
What condition is part of post-maturity syndrome?
Meconium aspiration syndrome (MAS)
What conditions are part of congenital anomalies?
Neural tube defects
Cleft lip/palate
Imperforate anus
Dislocated hip/club foot
GA: preterm infant
20-37 weeks
GA: late preterm infant
34-36 6/7 weeks
GA: Full term infant
39-40 6/7 weeks
GA: Late term infant
41-41 6/7 weeks
GA: Post-term infant
42 weeks and beyond
Infants who are __ or __ have 20x greater risk for death
IUGR or SGA
Low birth weight baby
<2500 grams
Less than 5.5 pounds
Regardless of gestation age
Very low birth weight baby
<1500 grams or <3.3 lbs
Extremely low birth wight baby
<1000g
<2.2 lbs
Small for gestational age baby
Plot below 10th percentile
Appropriate for gestational age baby
Plot between the 10th and 90th percentile
Large for gestational age baby
Above the 90th percentile or >4000g
How is IUGR defined?
Rate of growth does not meet expected growth pattern
What is symmetrical IUGR?
Weight, length, and head circumference all affected
What is asymmetrical IUGR/
Head normal, but body is disproportionally small (<10th percentile)
Preterm labor defined as…
Labor between 20-37 weeks of pregnancy
What is the number one perinatal and neonatal problem in the USA?
Pre term labor
Preterm labor accounts for __ of live births
11.4%
What are the fetal implications for preterm labor?
Increased morbidity and mortality
Increased risk of birth trauma
Maturational deficiencies
What is the number one cause of death among infants?
Preterm birth
What types of births account for the majority of preterm mortalities?
Peri-viabe births
What is the chance of survival at 22 weeks?
6%
What is the chance of survival at 23 weeks?
26%
What is the chance of survival at 24 weeks?
55%
What is the chance of survival at 25 weeks?
72%
Self-care measures to prevent preterm labor:
A mother should rest…
2-3 times per day laying on her left side
Self-care measures to prevent preterm labor:
Drink __ amount of fluid each day and avoid…
2-3 quarts
caffeine
Self-care measures to prevent preterm labor:
Empty bladder at least…
Every 2 hrs during waking hours
Self-care measures to prevent preterm labor:
Avoid lifting…
Heavy objects. Have small children climb onto lap instead of picking them up
Self-care measures to prevent preterm labor:
Avoid prenatal breast preparation such as…
Nipple rolling or rubbing nipples with a towel to avoid uterine irritability
Self-care measures to prevent preterm labor:
Pace necessary activities to avoid…
overexertion
Self-care measures to prevent preterm labor:
Eliminate sexual activity that leads to…
Orgasm or includes nipple stimulation
Self-care measures to prevent preterm labor:
Find pleasurable ways to help compensate for…
Limited sexual practices
Self-care measures to prevent preterm labor:
Try to focus on…
one day at a time rather than long periods of time
Self-care measures to prevent preterm labor:
If on bed rest get…
dressed each day and rest on couch rather than isolated to the bedroom
What social factors are risk factors for preterm labor?
African American race Smoking or substance abuse Low socioeconomic status Limited education Late entry prenatal care High levels of personal stress
What are health factors that increase the risk for preterm labor?
History of genital tract infection Bleeding during pregnancy Uterine anomaly Infertility treatment Multi fetal pregnancy Underweight or obese Periodontal disease
What are common causes of INDICATED preterm birth
DM or GDM Chronic hypertension Pre-eclampsia Obstetrical disorders Medical disorders AMA Fetal disorders
What does TTTS stand for?
twin to twin transfusion syndrome
What is TTTS?
The blood supply of one twin moves to the other and one is deprived of blood
When does TTTS occur?
Only in identical twins
Women with cervix length greater than __ are unlikely to give preterm birth even in the presence of contractions
30mm
How can preterm labor be predicted?
Using cervical length and fetal fibronectin
Which method of predicting preterm labor is not very effective? and why?
Using cervical length because changes in length occur over several weeks
What does FFN stand for?
fetal fibronectin
What is fetal fibronectin?
Glycoprotein found in vaginal and cervical secretions
How is a FFN test done?
Using a swab to collect secretions during a vaginal speculum exam
The FFN test is most valuable to detect who will…
NOT go into preterm labor
A negative FFN test means
the patient will not go into preterm labor
A negative FFN value is __
high
Women who have a high FFN value have a…
<1% chance of going into preterm labor within the next 2 weeks
How is preterm labor suppressed?
Tocolytics
What tocolytic is used to stop preterm labor?
Magnesium sulfate
How is magnesium sulfate given?
40g/1000cc piggyback to primary infusion
What is the loading dose of magnesium sulfate?
4-6g over 20-30 mins
What is the maintenance dose of magnesium sulfate?
1-4 grams per hour
What are side effects of magnesium sulfate?
Feeling flushed
Nausea and vomiting, weakness, dizziness
What is the therapeutic range of magnesium sulfate?
5-8 mg/dL
Why is magnesium sulfate given?
For near protection during preterm labor for women 24-32
When is magnesium sulfate stopped?
Shouldn’t be on longer than 24 hours
What respiratory rate should the nurse discontinue the mag sulfate?
RR <12
What urine output should the nurse discontinue the mag sulfate?
<25-30 mL/hr
What serum magnesium level should the nurse discontinue the mag sulfate?
9 mg/dL or higher
What patient s/s should the nurse discontinue the mag sulfate?
Pulmonary edema Absent DTRs Chest pain Severe hypotension Altered LOC Extreme weakness
How does terbutaline work?
Smooth muscle relaxant and bronchodilator
How is terbutaline given?
SQ injection
What is the dose for terbutaline?
0.25 mg every 4 hrs for 24 hrs
What type of drug is terbutaline?
B mimetic
What are side effects of terbutaline?
Palpitations, tachycardia, headache, nausea, vomiting, hypotension, hyperglycemia
When should terbutaline be discontinued?
HR >130 BP <90/60 Chest pain Arrhythmia MI Pulmonary edema
A patient with heart disease is having toxic effects of magnesium, can you give her terbutaline?
NO
A patient with diabetes is having toxic effects of magnesium, can you give her terbutaline?
NO
A patient with preeclampsia is having toxic effects of magnesium, can you give her terbutaline?
NO
A patient with hyperthyroidism is having adverse effects of magnesium, can you give her terbutaline?
NO
A patient with chorioamnionitis is having toxic effects of magnesium, can you give her terbutaline?
NO
A patient who is hemorrhaging is having adverse effects of magnesium, can she be given terbutaline?
NO
What medication is given to reverse cardiac effects of terbutaline?
Inderal
What tocolytic suppresses uterine smooth muscle by inhibiting prostaglandin?
Indomethacin/indocin
What is the dosage of indomethacin/indocin?
Intially 50 mg PO and then 25-50mg every 6 hrs for 48 hrs
Indomethacin/Indocin is only used gestations __ weeks
less than 32
Why is indomethacin/indocin only used in gestations less than 32 weeks?
Must have adequate amniotic fluid volume and function of ductus arteriosus before beginning treatment
What are the maternal side effects of indomethacin/indocin?
Nausea Vomiting Heartburn GI bleeding Thrombocytopenia
What are the fetal side effects of indomethacin/indocin?
Constriction of ductus arteriosus
oligohydramnios
neonatal pulmonary hypertension