Test 3 COPY Flashcards
What are 4 sources of labor pain
- Tissue Ischemia
- Cervical Dilation
- Pressure and pulling on pelvic structures
- Distention of Vagina and Perineum
Factors influencing perception or tolerance of pain?
- labor intensity
- Cervical readiness
- Fetal Position
- Pelvic readiness
- Fatigue & hunger
- Caregiver interventions
Advantages to non-pharmacologic pain management
- Non systemic
- Doesn’t effect fetus
- Doesn’t effect labor
- ## Non allergy contraindications
Psychosocial factors that influence labor pain include
- culture
- anxiety and fear
- previous experiences
- preparation for childbirth
- mother’s support system.
Excessive pain can heighten a woman’s fear and anxiety, which stimulates an increased secretion of ___________________.
Catecholamines
Catecholamines act on what two receptors?
- Alpha
- Beta
Stimulation of the ______ receptors relaxes the uterine muscle and cause __________
- Beta
- Vasodilation
Stimulation of the _________ receptors causes uterine and generalized ____________.
- Alpha
- Vasocontriction
What are the effects of excessive catecholamine secretion?
- Reduced blood flow to and from the placenta,
* Reduced effectiveness of uterine contractions, slowing labor progress
Pain is both physiologic and psychological. The Physiological pain can be affected by increased secretion of _____________
Catecholamines
Labor _______ a woman’s metabolic rate and her demand for __________.
- increases
- oxygen
How do pain and anxiety affect a woman’s already high metabolic rate.
Increase
How does an increase in metabolic rate affect the fetus?
- significantly alter placental exchange causing less oxygen to be available for the fetus
The fetus shifts to _____________ when it does not have enough oxygen available for uptake
Anaerobic Metabolism
The fetus may shift to _____________ when it does not have enough oxygen available for uptake
Anaerobic Metabolism
___________ acidosis and does not resolve as quickly after birth as __________ acidosis, which results from shorter periods of ___________.
- Metabolic
- Respiratory
- hypoxia
What are the psychological effects of poorly relieved pain?
- affect the mothers interaction with newborn as she is so depleted/tired
- Poor memories of
- Affect her response to sexual activity
What are 3 causes of pain in labor in stage 1?
- Stretching of the cervix
- Uterine Anoxia - Tissue ischemia
- Stretching of the uterine ligaments
What are 4 causes of pain in labor in stage 2 ?
- Traction on the stretching of perineum
- Distention of the vagina and perineum
- Compression of the nerve ganglia in cervix and lower uterus
- Pressure on urethra, bladder & rectum during fetus decent
What factors that influence perception and tolerance of pain
- Labor intensity
- Cervix that is not ready results in longer labor which leads to lowered level of pain tolerance
- Fetal position such as posterior is more painful
- Pelvic readiness - abnormal pelvis
- Fatigue and Hunger reduce a woman’s ability to tolerate pain
- Interventions by medical personnel
Goal of pain management?
- Help ease the anxiety in the moment of labor
Sedatives are given to …
- promote sedation and relaxation
Benefits of Sedatives
- promote sedation and relaxation
- Decrease release of catecholamines
Adverse effects of Epidural block
- Maternal hypotension
- Bladder distention
- Catheter migration
- Cesarean Birth
If you have a mom with a history of drug addiction, she is on heroin or she is on a drug treatment program such as methadone, what drugs should be avoided?
Stadol
Nubain
Advantages of pharmacological Interventions
- Increases women’s ability to cope
- Medication may be administered by the nurse
Disdvantages of pharmacological Interventions
- Side affects - itching, vomiting, pruritus, drowsiness, and neonatal depression
- Pain is not eliminated completely
- The fetus can be effected by medicatiosn
What is local anesthesia used for ?
- Anesthetizes the lower vagina and part of the perineum
- Provides anesthesia for an episiotomy and vaginal birth
- Mother feels pressure.
A spinal anesthesia is typically given for a ___________ birth
Cesarean
Pudendal Anesthesia
Provides pain relief for episiotomy and delivery
How is Pudendal Anesthesia administered?
transvaginally
How often do you monitor vital signs after an epidural is placed?
Every 3 Min
Because the medication given during an epidural/spinal causes vasodilation, a nurse must watch for
Hypotension
A mother who is going to receive an epidural should receive a bolus of _______ ml normal saline prior to the procedure to prevent hypotension
1000
Medicine used to counteract hypotension
Ephedrine
Complications associated with Epidural and Spinal Anesthesia
- Hypotension
- Maternal fever
- Shivering
- Pruritus
- Inadvertent injection into the blood stream
- Spinal headache
- Fetal distress
A person with a spinal headache severe head pain in what position?
- Sitting up
Intervention for a spinal headache includes the use of __________ & Tylenol first and then a __________.
- Alot Caffeine
- blood patch
Life-threatening complications occurring with general anesthesia
- Failed intubation
- Aspiration
- Malignant hyperthermia
What is malignant hyperthermia?
Condition that causes sustained muscle contractions in the presence of certain anesthetic agents?
________ is a general term that describes any difficult labor or birth.
Dystocia
What are problems with the powers of labor?
- Ineffective Contractions (hypotonic/hypertonic)
- Ineffective maternal pushing
Possible causes of ineffective contractions include the following:
- Early or excessive use of analgesia
- Overdistention of the uterus _ (polyhydramnios, twins etc)
- Excessive cervical rigidity
- Grand multiparity
- Mild pelvic contraction
- Postmature and large infants - CPD
What are problems with the passage of labor?
- Shape of pelvis
- Maternal soft tissue obstructions
What are problems with the passenger of labor?
- fetal size
- presentation or position
- multifetal pregnancy
- fetal anomalies
What are problems with the Psyche of labor?
- Catecholamines release inhibits contractionscan
The 2 combined effects of excessive catecholamine secretion are as follows:
- Reduced blood flow to and from the placenta, restricting fetal oxygen supply and waste removal
- Reduced effectiveness of uterine contractions, slowing labor progress
what is an amniotomy?
artificial rupture of amniotic sac
what are some indications for an amniotomy?
- induce labor
- augment labor
- allow internal fetal monitoring
What is a major risk for an amniotomy? What are other risks?
MAJOR = prolapsed cord
- Infection
- Abruptio placenta
What are three major risks for an amniotomy?
- prolapsed cord
- placental abruption
- infections
What are the things you would do as a nurse for an amniotomy?
- obtain baseline fetal heart rate (20-30 mins before procedure)
- assist with the amniotomy (place absorbent pads under buttocks)
- provide after care
What type of after care is provided after an amniotomy?
- FHR is assessed for at least one full minute
- quantity, color and odor of amniotic fluid are charted
- the woman’s temp should be assess at least every 2-4 hours after the membranes rupture
- provide comfort
what are the artificial methods to stimulate uterine contractions?
induction and augmentation
___ is performed when a continued pregnancy may jeopardize the health of the woman or fetus and labor and vaginal birth are considered safe.
induction of labor
What are some contraindications for induction of labor?
- placenta previa
- vasa previa
- umbilical cord prolapse
- abnormal fetal presentation
- fetal presenting part above the pelvic inlet
- previous surgery in the upper uterus
what are some indications for induction of labor?
- hostile intrauterine environment
- post-term pregnancy
- SROM
- chorioamnionitis (inflammation of the amniotic sac)
- HTN
- abruptio placentae
- maternal medical conditions that worsen with continuation of the pregnancy
- fetal death
What are the risks to induction and augmentation of labor?
- hypertonic uterine activity
- uterine rupture
- maternal water intoxication
- greater risk for chorioamnionitis
- greater risk for cesarean birth
labor is ____ induced if term gestation, fetal lung maturity, or both are not established unless a compelling reason exists
not
What are techniques to induction and augmentation of labor?
- cervical ripening
- oxytocin administration
- serial induction of labor
What are some medical methods to cervical ripening?
- prostaglandin
- cervidal
- cytotec
What are some mechanical methods to cervical ripening?
-foley balloon
Oxytocin Administration:
- dilute in isotonic solution
- secondary (piggyback) infusion
- insert oxytocin into the primary IV line
- start slowly, increase gradually
- monitor uterine activity, FHR, and fetal heart patterns frequently
Nursing considerations for induction and augmentation of labor:
- observe the woman and fetus for complication and takes corrective actions if abnormalities are noted
- observe fetal response
- observe the mothers response
What are the two types of versions?
- external
- internal
The goal of __ is to change the fetal position from a breech, shoulder (traverse lie), or oblique presentation
external cephalic version
___ change the position of a second twin a vaginal birth
internal version
Contraindications for performing a Version
- Uterine malformations
- Previous cesarean
- Fetal size ≥4000 g
- Cephalopelvic disproportion
- Multifetal gestation
- Oligohydramnios
What is a precipitate labor and what is a precipitate birth?
Precipitate labor - birth occurs within 3 hrs of its onset
Precipitate birth - Occurs after a labor of any length, when a trained attendant is not present to assist
Induction and Augmentation of Labor: Indications
- Hostile intrauterine environment
- Spontaneous rupture of the membranes (SROM)
- Post-term pregnancy
- Chorioamnionitis (inflammation of the amniotic sac)
- Hypertension
- Abruptio placentae
- Maternal medical conditions that worsen with continuation of the pregnancy
- Fetal death
When the water bag breaks before
___ weeks of pregnancy and labor has not started, it is considered a Preterm Premature Rupture of Membranes (PPROM)
37
What is a Premature Rupture of Membranes?
When a woman’s water breaks before the start of labor
How long after a woman’s water breaks do providers give them to got into labor without interventions?
12hrs
Risk factors associated with PPROM?
- Infection
- Previous
- Polyhydramnios
- Incompetent cervix
- Multiple gestation
- Abruptio placentae
The _______ test is more diagnostic of true rupture of membranes because it is less likely to be affected by vaginal infections, recent intercourse, or other factors.
fern
How can a provider determine true membrane rupture?
- Perform a sterile speculum exam to look for a pool of fluid near the cervix
- Ph swab (amniotic fluid is alkali/ urine is acidic)
- Fern test
- Amnisure test (99% accurate)
What 2 kind of drugs are given to dcrease the severity of respiratory distress syndrom in the premature neonate?
- Tocolytics
- Corticosteroids
Management of PROM at 37 weeks gestation or greater focuses on ________
Delivery
How often do you change the pads of a woman who had a PROM ?
Every 2 hours (more frequently if needed)
A complication of PROM is Chorioamnionitis which is characterized by Chorioamnionitis, characterized by ___________ & ___________
- maternal fever
- uterine tenderness.
3 Types of prolapsed umbilical cord?
- COMPLETE cord can be seen protruding from the vagina
- An OCCULT (Hidden) prolapse of the cord is one in which the cord slips alongside the fetal head or shoulders.
- FORELYING - The cord cannot be seen but can probably be felt as a pulsating mass during vaginal examination.
Predisposing factors for a Prolapsed of cord
- ROM
- Shoulder and foot presentations
- Prematurity
- Polyhydraminos
- CPD (large head)
- Breach presentation
- Placenta previa
Priority nursing interventions of a Prolapsed cord?
- Position -
a. Knee-chest position - on her knees and lying on her chest, elevate buttocks
b. Trendelenburg position -
c. Hips elevated with pillows, with side-lying position maintained - Push the presenting fetal part off the cord
- Minimize manual palpation or handling of the cord as much as possible to minimize cord vessel vasospasm.
- Cover wet gauze on the prolapsed cord - Ultrasound examination may be used to confirm presence of fetal heart activity before cesarean delivery.
Why can terbutaline be used during a cord prolapse?
to stop or slow the contractions and stop pushing the head down on the cord
Maternal Complications of a prolapsed cord
- infection
- Risk for increased blood loss from emergency delivery
- Fear and anxiety
Fetal Complications of a prolapsed cord
- Prematurity
- Complications resulting from hypoxia
- Fetal death
What is the appropriate oxygen administration for a women with a prolapsed cord?
Face mask at 8 to 10L/min
Definition of Preterm labor includes what 4 manifestations?
- 20 to 37 weeks of pregnancy
- Uterine contractions
- 8-% thinning of the cervix
- Cervical dilation > 1cm
Risks factors for preterm birth
More than one fetus
- Hx of preterm birth
- Abnormal uterus or incompetent cervix
Management of preterm labor?
Detect early and adminster medications to stop contractions
If preterm birth is suspected, the mother is given _________ to help the baby breath after birth at least ______ before birth.
- Steroids (betamethasone)
- 48 hrs
Steroids (betamethasone) is give to premature fetus less than _____ weeks gestation.
37
Treatment approaches for preterm labor include?
- bedrest
- hydration
- Medications
Medications used for preterm labor include?
- terbutaline
- toradol
- mag sulfate
How can mag given to a mother in preterm labor help the fetus after birth?
improve neurological outcomes of premature fetus
Risks to the fetus in a prolonged pregnancy?
- Placental insufficiency
- Reduced amniotic fluid
- Meconium aspiration
- Post date growth retardation
How are post term babies affected by poor placental perfusion?
- hyperbilirubinemia
- Meconium (baby is stressed - craps its fluid)
- Decrease in nutrition - decreased fat stores
- decreased amniotic fluid
Why are post term babies at risk for hyperbilirubinemia ?
When baby becomes hypoxic, it makes more RBC to hold on to more oxygen. When these extra rbc are broken down, bilirubin is a byproduct which can accumulate
What are some contraindications for Version?
- uterine malformation
- previous cesarean
- fetal size >4000g
- cephalopelvic disproportion
- multifetal gestation
- oligohydraminos
- ruptured membranes
- cord around the fetal body
- engagement of the fetal head
- placenta previa
What are some risks to version?
- few risks are present and few serious risk to fetus
- fetus may become entangled in the umbilical cord
- abruptio placentae may occur
- mixing of fetal and maternal blood
What is the technique for external version?
- non stress test to evaluate fetal well-being
- determine gestational age beyond 37 weeks
- administer tocolytic drug to relax uterus
- use ultrasound to guide manipulations
- Rho(D) immune globulin (RhoGAM) given if indicated
What do you do as a nurse to prepare a patient for version?
- provide information
- promote maternal and fetal health (vitals, women should be NPO at least 4 hours before procedure)
- reduce anxiety
what are some indications for an operative vaginal birth?
- shortened second stage of labor
- maternal indications (exhaustion, inability to push effectively, and cardiac and pulmonary disease)
- fetal indications (nonreassuring FHR)
Risks to operative vaginal birth:
- trauma to maternal and fetal tissues
- hematoma of the vagina
- fetus may have bruising, facial nerve injury, clavicular fractures, cephlahematoma
Technique to operative vaginal birth:
- preparation of woman (empty bladder, cervix completely dilated and membranes ruptured, adequate anesthesia)
- classification of techniques (outlet: fetal head on perineum, Low: leading edge of fetal skull at station +2, mid: leading edge of fetal skull between 0 and +2)
- forceps: locking blades applied to fetal head
- vacuum extraction: cup attached to fetal head and traction applied