Intrapartum Flashcards

(62 cards)

1
Q

Factors that Stimulate Labor

How do we know that labor has started?

A
Onset of Uterine muscle contractions
Oxytocin
Estrogen
Fetal Cortisol
Prostaglandins

Changes in hormones!

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2
Q

Premonitory Signs of Labor (5)

A
Lightening
Energy spurt
“Bloody Show
Braxton Hicks contractions
Increase in clear; nonirritating vaginal secretions
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3
Q

Engagement

A
Relationship between mom’s pelvis and the presenting part of the baby
passes the pelvic inlet
Measurements = inlet, mid-pelvis, outlet
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4
Q

False Labor

A

No cervical change occurs
Discomfort usually in lower abdomen – more annoying than painful
Contractions irregular & short in duration
Intensity does not correlate with time
Medication and activity affect contractions
Usually no bloody show

Differentiation = contractions in false labor are more commonly irregular – healed with medications
Tylenol, hot shower, varying intensity, no cervical change

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5
Q

True Labor

A

Discomfort in front and back
Frequency, duration, and intensity increase
Palpable hardening of uterus
Pinkish mucous
Cervical Changes – Effacement, Dilatation
Bulging of membranes

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6
Q

Six concepts which make labor and birth as natural as possible are:

A

labor should begin on its own, not be artificially induced
women should be able to move about freely throughout labor, not be confined to bed
women should receive continuous support from a caring other during labor
interventions such as intravenous fluid should not be used routinely
women should be allowed to assume a nonsupine position such as upright and side-lying for birth
mother and baby should be housed together after the birth, with unlimited opportunity for breast-feeding

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7
Q

5 Labor powers

A

Powers
physiologic forces

Passageway
maternal pelvis

Passenger
fetus and placenta

Passageway & Passenger
pelvis and fetus

Psychosocial (Psyche)
influences

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8
Q

Primary and secondary power forces

A

Uterine contractions—primary force
Involuntary
Dilate the cervix

Maternal pushing efforts—secondary force
Voluntary
Compress the uterus -> birth of fetus

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9
Q

Uterine Contractions - Primary

A
Characteristics
Frequency -- 10 minutes, 5 minutes, 3 minutes
Duration
Intensity
Palpation: 
nose-chin-forehead
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10
Q

Uterine contraction graph

A

Pattern of contractions
Increment – up
Acme – peak – no blood flow to uterus
Decrement – down

Frequency – start of one contraction to start of another
Duration – start of one contraction to end of the same contraction
Intensity – how strong

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11
Q

EFM

A

Electronic fetal monitoring
to evaluate contractions
to assess fetus response to contractions

External monitor
Tocodynamometer
Electric monitor of uterine contractions

Internal monitor
Internal pressure catheter
Fetal scalp electrode – an internal fetal heart monitor
Intrauterine pressure cath – an internal contraction monitor
–> Membranes need to be ruptured

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12
Q

Maternal Pushing - Secondary

A

“Bearing down” sensation

Urge to push vs.No urge to push
10cm dilated – needs to feel urge to push
At 10cm can start encouraging to push but can become exhausted more frequently

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13
Q

Passageway

Passenger

A

Shape of pelvis can determine C/S – cephalopelvic disproportions

Fetus and fetal membranes
Fetal Head – sutures and bones can help tell provider where the baby is (occipital, frontal, parietal)
Fetal Lie – position baby is in compared to moms spine
Fetal Attitude
Fetal Presentation

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14
Q

Passenger - Fetal Lie

A

Longitudinal – can be longitudinal lie in breech position
Transverse
Oblique – diagonal

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15
Q

Fetal Presentation

A

Cephalic
Shoulder
Breech

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16
Q

Shoulder presentation

A

Fetus in transverse lie
Cannot be delivered vaginally unless rotated
Manual rotation performed by OB, CNM
Membranes must be ruptured, cervix dilated
Standard of care = C-Section

External rotation a month before
Painful; tight support strap, does not often work

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17
Q

Passenger - Presentation – BREECH

A

Breech
Complete – complete just facing the wrong way
Incomplete – butt down and one leg in air
Frank – two legs up
Footling – membranes ruptured and feel foot

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18
Q

Breech complications

A

Risk of cord prolapse
Presenting part less effective in cervical dilation
-> risk of prolonged labor
Risk of cord compression

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19
Q

Attitude

A

Flexed – want baby in this position
Vertex – 9.5

Extended
Military – 12.5
Brow –13.5
Face – 9.5

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20
Q

Passageway + Passenger

A

Fetal Position
“Landmark” = occipital bone
Landmark location vs. maternal pelvis
Back Labor

WANT LOA OR ROA – shorter labor, less pain

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21
Q

Station

A

Station – relationship of presenting part to ischial spines
Above ischial spines (–) minus station
“floating” not engaged

Ischial spines 0 station
engaged

Below ischial spines (+) plus station
“crowning” at +4 / +5
-> delivery

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22
Q

Psychosocial Influences (5th power) on Successful Labor and Delivery

A

Confidence in readiness
Educational preparedness
Cultural views of childbirth
Role transition facilitated by positive childbirth experience
Negative experience interferes with bonding and maternal role attainment

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23
Q

Stages of Labor

A

First stage
Onset of regular contractions to full dilation
First regular contraction = labor starts

Second stage
Full dilation to delivery of fetus
10cm

Third stage
Delivery of fetus to delivery of placenta
5 minutes to half hour

Fourth stage
1 - 4 hrs after delivery of the placenta (recovery

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24
Q

First Stage of Labor

A

Three phases
Latent phase 0 to 3 cm
0-30 secs, more than 5 mins

Active phase 4 to 7 cm
40-60 secs, every 2 to 5 mins

Transition 8 to 10 cm
60-90 secs, every 1 to 2 mins

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25
Vaginal exams | Dilatation
Progress of labor Plan interventions Success of treatments -- pitocin If she is demonstrating changes in attitude or approach we don't need to do a vaginal exam
26
Vaginal Exams Station of the baby Markers to identify
Palpate the sagittal suture Identify the posterior fontanel Identify the occipital bone Identify the the anterior fontanel
27
Second Stage of Labor
Full dilation through birth of infant Urge to push Nursing interventions: Promote effective pushing Position of comfort
28
Assessment of fetal well being
``` Position Abdominal palpation (early labor) or Vaginal examination Ultrasound ``` ``` Fetal heart sounds (FHR) Auscultation Doppler or Electronic Fetal Monitor ```
29
Interpret FHR, EFM
Contractions Frequency Intensity FHR Reassuring and non-reassuring (dips, brady, tachy changes above 25 bpm) 1 full minute -- comparing peak to baby HR
30
Admission
``` Establish positive relationship Collect admission data Initiate admission interventions Physical assessment – mother and fetus Psychosocial assessment Cultural assessment Laboratory tests Initiate care plan in EMR Ongoing focused assessment and interventions ```
31
Labor Support
``` Promote comfort Personal hygiene Elimination Environment Presence Support relaxation ``` Women during labor are best supported by an RN Shorter labors Decreased pharmacologic use Decreased operative vaginal or cesarean births Decreased need for oxytocin Increased satisfaction with birthing experience
32
Labor support | 5 aspects
Emotional: encouragement, distraction, reassurance Physical: touch, position change, heat or cold applications Information: provide education, coaching, interpret medical jargon Advocacy: support decisions, let other’s know her wishes Support family: role model support, encouragement, provide breaks
33
Maternal positions in Labor
``` Hands and knees -- back labor Recumbent Upright Standing Sitting Side-lying -- back labor ```
34
Imminent Birth | 7
``` Bulging of the perineum and rectum Flattening and thinning of the perineum Increased bloody show Labia begin to separate “Crowning” Burning sensation Intense pressure in rectum ```
35
Umbilical Cord Clamping
Cord clamped by HCP or father Collect cord blood sample for laboratory analysis -- test for baby blood type, cord blood for sampling Cord blood storage arranged by parents
36
Immediate Care of Newborn
``` Airway Breathing Circulation Warmth Appraisal—Apgar score Identification of newborn ```
37
Third Stage | 5
``` Birth of baby to complete delivery of placenta Lengthening and protrusion of cord Gush of blood from vagina Smaller, spherical uterus Elevation of uterus in abdomen ``` Nurse expects to admin oxytocin after expulsion of placenta to... Stimulate contractions Reduce incidence of post partum hemhorrage
38
Fourth Stage (6)
From delivery of placenta through 1 to 4 hrs Monitor position and firmness of uterus --> “Boggy,” soft uterus --> Initiate fundal massage Assess bleeding -- lochia Hypotension + Tachycardia -- INDICATE BLEEDING* Facilitate bonding Initiate breastfeeding
39
Joint Commission Standards for Pain Management
Recognize the right: appropriate assessment and management of pain. Screen patients: during initial assessment and reassessed appropriately. Educate patients: pain management options and their family.
40
Pain Perception and Expression
``` Assessing pain Physiological, psychological indicators Increased catecholamines Increased blood pressure and heart rate Altered respiratory pattern Patient responses May be intensified by fear, anxiety, fatigue… Shaped by past experiences Cultural competence ```
41
Pain in Labor
``` Complex Multidimensional Pain management Non-pharmacologic Pharmacologic Goal: manage pain without interruption of labor or doing harm to mom or fetus Pain scale: Coping with Labor Algorithm ```
42
Pain in Labor | First and second stage
First stage – visceral pain: deep, dull and aching, poorly localized, felt only during contractions Second stage - somatic pain: sharp, intense, well localized, burning, or prickling caused by stretching of perineal body, distention and traction, and soft tissue lacerations.
43
First Stage of Labor, Active | Pain
Dilatation of cervix Stretching of the lower uterine segment Pressure on adjacent structures Hypoxia of uterine muscle cells during contractions
44
First Stage of Labor, Transition | Pain
Dilatation of cervix Stretching of the lower uterine segment Pressure on adjacent structures Hypoxia of uterine muscle cells during contractions Pain is really localized; can refer down to knees -- localized around perineum
45
Second Stage of Labor | Pain
Pain Hypoxia of uterine muscle cells during contractions Distention of the perineum and vagina Pressure on adjacent structures
46
Non-Pharmacological
``` Position changes and movement Standing Walking Slow dancing or leaning Rocking on hands and knees Pelvic rocking Side lying Squatting Bellydancing Massage Effleurage Counter Pressure Intuitive touch / therapeutic touch ``` ``` Aromatherapy Breathing techniques Lamaze, Bradley Hypnobreathing Safety: valsava Compresses: warm or cold Relaxation techniques Visualization Focal point Imagery ``` ``` Music Hydrotherapy Immersion Shower Biofeedback Tens unit ```
47
RN vs. Doula
``` Evidence based practice Meets woman at delivery Performs clinical tasks Consults and advocates Intermittent labor support Keeps patient informed Documents Legal accountability Minimal contact after delivery ``` ``` Trained, may be certified Relationship during pregnancy Supportive role not clinical No communication with HCP Provides continuous support Informs pt using lay terms Assists in articulating questions or concerns to the nurse or HCP May document to share later Follow-ups after ```
48
Anti-Anxiety
Sedatives – for anxiety -- not commonly given; anxiety will slow down Barbiturates – rarely used secobarbital (Seconal) Benzodiazepines diazepam (Valium) lorazepam (Ativan) Antiemetics – H1 Receptor Agonists promethazine (Phenergan) hydroxyzine (Vistaril) diphenhydramine (Benadryl)
49
Pharmacological Pain Mgmt
Analgesics: Drugs that relieve pain without loss of muscle function. They lessen pain, but do not stop it completely. RELIEF FROM PAIN Anesthetics: Drugs that relieve pain through loss of sensation. They block all feeling. LACK OF SENSATION
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Analgesia
Increase pain threshold; reduces the perception of pain Provide maximum relief of pain with minimal risk Help patient relax and sleep between contractions
51
Analgesia Medications
Systemic Medications can cross the placental barrier Analgesics used in labor: Stadol, Nubain - 2-3 hr half-life (cross placenta, respiratory depression for baby, opioid preferred) If given two hours before baby born -- needs neonatologist Dilaudid, Demerol - long half-life in neonate Fentanyl, short-acting (needs repeated doses), may not cross placenta May still cause respiratory depression Analgesic Potentiaters Decrease anxiety and increase effectiveness of analgesics (Phenergan, Vistaril)
52
Opioid Analgesics
Side effects Nausea; Vomiting Itching Dizziness More serious but not likely Loss of protective airway reflexes Hypoxia due to respiratory depression Psychosocial concerns “natural” birth Hx of addiction
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Antagonist
``` Systemic Analgesia – Opioids hydromorphone (Dilaudid) meperidine (Demerol) fentanyl (Sublimaze) butorphanol (Stadol) nalbuphine (Nubain) ``` Opiate Antagonist Naloxone (Narcan) Reverses effect – if sx of respiratory depression present Can be used for mom or baby DO NOT GIVE TO parent who has hx of addiction Can cause seizures and can affect baby
54
Spinal and Epidural
Different spaces Spinal into subarachnoid Epidural into dura Different locations Spinal below L2 to avoid hitting spinal cord Epidural into C T L spaces Different onset Spinal – faster acting Epidural – slower acting Epidural can be anesthesia and analgesia Spinal only anesthesia
55
Spinal vs. Epidural | Complications
Regional spinal anesthesia block ``` Complications: Maternal hypotension Decreased placental perfusion Ineffective breathing pattern Spinal Headache -> tx with autologous blood patch --> Leakage of CSF ``` ``` Regional epidural analgesia in labor, anesthesia in c/s Complications: maternal hypotension bladder distention prolonged second stage ``` Contraindication: Low Platelet count for BOTH
56
Epidural during Labor | Advantages and disadvantages
``` Advantages PCEA! Relieves discomfort during labor Fully awake during birth Fewer fetal effects --> no respiratory depression Mom rests before 2nd stage Fetus can labor down Access for LA morphine ``` ``` Disadvantages Maternal hypotension Monitor VS; respiratory Bolus before insertion Epinephrine available Limited mobility Can slow fetal descent Less effective pushing Urinary retention – insert foley Blood coagulation ```
57
Health Literacy
Health literacy – an interaction between system demands and people’s skills reading, writing, numeracy, listening, speaking, and conceptual knowledge
58
Duration of Pregnancy
1st trimester = 1-12 weeks 2nd trimester = 13-27 weeks 3rd trimester = 28-40 weeks
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Gravida Para
any pregnancy delivery after 20 weeks regardless if born alive or stillborn, or how many infants
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GTPAL
gravida -- how many times pregnant Term -- infants before 37 weeks or more Preterm -- infants born at 20-36 (6) weeks Abortion -- elective or spontaneous before 20 weeks Living children -- survived neonatal period
61
Cardinal movements
baby turns when coming out to get head and shoulders out effectively
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Membranes ruptured... Abnormal labs... Emergency
Assess FHR/pattern Document characteristics and notify HCP Palpate/auscultate abdo Intervention PRN before documenting Further orders -- call HCP and then document Quick assessment of ABCS initiate rapid response