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27 Cards in this Set
- Front
- Back
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What is TERM by definition?
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37-42 weeks completed from LMP
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What determines the onset of active phase labor?
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4cm dilation
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How is clinical pelvimetry acomplished?
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By digital palpation of the pelvic bones
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What is LABOR defined as?
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Cervical change PLUS regular uterine contractions
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What is LATENT phase labor?
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The early part consisting mainly of CERVICAL EFFACEMENT
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How much does the cervix dilate during latent labor?
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4cm
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How long should latent labor last in a
-Primip -Multip |
Prime: <18-20 hrs
Multi: <14 hrs |
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What is Active phase labor?
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The portion where dilation is faster
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What determines Active phase labor as abnormal?
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If the dilation isn't occuring fast enough
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What is abnormal dilation rate in Active phase labor in a Primip vs Multip?
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Prime: should dilate at a rate of at least <1.2 cm/hr
Multip: should dilate at least 1.5 cm/hr |
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So if a mom has been 8 cm dilated for 5 hours and changed 1 cm in the past 2 hrs, what is this called?
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PROTRACTION of active phase.
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What if there had been NO CHANGE in the last 2 hrs? What is this called?
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Arrest of active phase
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What do Latent + Active phases make together?
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Stage I labor
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What is Stage II labor?
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From complete dilation/effacement to expulsion of the fetus
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How long should Stage II labor last in a
-Primip -Multip |
Prime: <2 hrs (3 if epidural)
Multi: <1 hr (2 if epidural) |
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What is Stage III labor?
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From delivery of the infant to delivery of the placenta
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What are the 3 P's to evaluate when labor is abnormal?
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-Powers
-Pelvis -Passenger |
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What is considered to be adequete Powers?
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q2-3 minutes
Uterus firm to palpation Last for 40-60 minutes |
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What is a method some drs use to evaluate adequecy of powers?
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IUPC - intrauterine pressure catheter
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How are powers assessed on IUPC?
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In montevideo units
-Rise in mm Hg above baseline during contractions -Span of 10 minutes |
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So if a person has 4 contractions within a 10min period, and each is 55 mm Hg, how many montevideo units is this?
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55 x 4 = 220
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What is considered adequete powers based on MV units?
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At least 200
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What is given if powers are inadequete?
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Oxytocin
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How does oxytocin help powers?
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Augments both STRENGTH and FREQUENCY
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What is it called when latent phase is >20 hrs in a prime or >14 hrs in a multip?
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Prolonged latent phase
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What is it called when the cervix changes from 5cm-6cm over 3 hours?
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Protraction of Active phase
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What is it called when the cervix stays at 5 cm for 2 hours?
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Arrest of Active phase
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