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57 Cards in this Set
- Front
- Back
Preferred anesthesia for laboring patient |
Epidural > General |
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Disadvantages/risks of general anesthesia |
concern re: effects on fetus Incr risk of aspiration (pregnancy relaxes gastroesophageal sphincter) |
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Disadvantages/risks of epidural anesthesia |
Can interfere with Mom's ability to push Increased risk of hypotension |
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If mom gets anesthesia she will need to have |
tocometer and pushing coach |
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Preferred anesthesia for c-section |
Epidural |
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Indicates uteroplacental insufficiency |
Late decelerations |
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Uteroplacental insufficiency |
Baby not getting enough O2, risk of metabolic acidosis |
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Indicates head compression |
Early decelerations |
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Indicates cord compression |
Variable decelerations |
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Deceleration considered normal/benign |
Early |
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Deceleration considered worrisome only if severe |
Variable |
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Deceleration considered worrisome if repetitive |
Late |
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Tx for variable compression |
Correct mom's position (Lateral decubitus), give O2 and stop oxytocin if administered If d/t oligohydramnios give amnio infusion |
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How to determine severity of variable compression |
Graded by their duration |
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Correction for fetal bradycardia |
Determine cause & correct OR start general measures to improve fetal O2 Determine if c-section or intervention req'd |
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Length of Normal Labor |
UP TO - Prima: 20 hours, Gravida: 14 hours P 6.5-20, G 4-11 |
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Latent phase of labor |
Start of contractions until 4cm dilation |
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Active phase of labor |
Up to maximal cervical dilation (10cm) |
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Stage I of Labor |
Latent and Active phases |
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Stage II of Labor |
Max dilation up to delivery of baby |
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Stage III of Labor |
From birth to delivery of placenta |
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What is a protracted active phase |
EITHER active phase longer than 12 hours OR cervical dilation slower than expected |
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Expected cervical dilation speed |
Prima: 1.2cm/hr (5 hours) Gravida: 1.5cm/hr (4 hours) |
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Risks of protracted active phase |
Intrauterine infxn, need for c-section |
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Iatrogenic cause of prolonged latent phase |
Analgesics given to mom |
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What is a prolonged latent phase |
>20 hour PRIMA, >14 hours MULTI |
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Risks of prolonged latent phase |
None, although overall no stage of labor should continue indefinitely |
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Causes of prolonged or arrested Stage I Labor? |
Iatrogenic or 3 Ps |
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3 Ps of Labor |
Power Passenger Pelvis |
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Which of the 3Ps can we modify? What is done? |
Power - Give pitocin (oxytocin) |
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Tx for arrested active phase |
C-section |
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Tx for prolonged active phase |
Try pitocin If not resolved, consider c-section |
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Tx for prolonged latent phase |
Iatrogenic - rest and wait Dilation - Balloon dilation of cervix Contractions - pitocin |
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Tx if pelvis is too small or passenger is too big |
C section |
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Causes of arrested Stage II Labor? |
Pelvis or passenger |
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Tx of Arrested Stage II Labor? |
Give pitocin, unlikely to resolve Intervention to remove baby |
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Intervention if baby is at Stage 0 or less? |
C-section |
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Intervention if baby is at Stage +1 or +2? |
Vaccuum or forceps |
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Causes of arrested Stage III Labor? |
Power/tired uterus |
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Risks of arrested Stage III Labor? |
High risk of converting to post-partum hemorrhage |
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Tx for arrested Stage III Labor? |
External/internal uterine massage Pitocin (to allow uterus to keep working) Manual manipulation |
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Causes of protracted active phase |
Excess anesthesia, low power/ineffective contractions, fetopelvic disproportion, fetal malposition, ROM before onset of labor |
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Causes of prolonged latent phase |
Low power/ineffective contractions, fetopelvic disproportion, Excess anesthesia |
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Cardinal movements of delivering fetus |
Engagement, descent, flexion, internal rotation, extension, external rotation and expulsion |
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Engagement |
Baby's head contacts the cervix, stimulating dilation |
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Flexion & Internal rotation |
Baby enters vaginal canal, worming through |
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Extension and external rotation |
Prior to exit of baby |
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Expulsion |
Birth complete |
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What's a Bishop score |
How ready is mom for delivery, and how soon will it occur (also if its time to prepare an emergent c-section in abnormal L&D) |
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Steps to correct fetal bradycardia in utero during labor? |
Primarily expectant, tx with pacemaker after birth |
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Labor |
progressive effacement and dilation of uterine cervix resulting from contractions of uterus |
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Dystocia |
Difficult labor, d/t Shoulder stuck, consider the 3 Ps |
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Friedman's curve |
The stages and phases of labor |
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Indications for operative OB: vacuum/forceps |
Fetus descended far enough (+1/+2) but labor stalled |
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Indications for operative OB: c-section |
Fetus no further than 0, labor stalled |
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Preterm labor is? |
Baby is NOT ready, but mom is having cervical changes +/- contractions |
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True contractions |
=< 10 m intervals => 30 sec duration @20-36 weeks gestation
with cervical effacement, dialtion +/- descent of baby into pelvis |