OB Exam 2 cram

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Nurs 310

Last updated 10:59 PM on 9/26/26
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156 Terms

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What does screening look for

Risk for a condition.

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What does diagnostic testing do

Confirms or identifies a condition.

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What is the main purpose of a birth plan

Promote patient autonomy and communicate birth preferences.

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What are the 4 Cs of trauma

informed care

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What are the Five P's of labor

Power, Passageway, Passenger, Psyche, Position.

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What is primary power

Involuntary uterine contractions.

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What is secondary power

Voluntary maternal pushing.

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What are the phases of the first stage of labor

Latent, active, and transition.

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What happens during the first stage of labor

The cervix dilates and effaces.

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What is the transition phase

The final phase of the first stage, approximately 8–10 cm.

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What happens during the second stage of labor

Complete dilation through birth of the baby.

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What happens during the third stage of labor

Birth of the baby through delivery of the placenta.

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What happens during the fourth stage of labor

Immediate postpartum recovery and monitoring.

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What are the cardinal movements of labor

Engagement, descent, flexion, extension, external rotation, and expulsion.

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What confirms true labor

Progressive cervical dilation and effacement.

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What is the difference between true and false labor

True contractions become stronger/closer and cause cervical change; false contractions are irregular and may stop with rest or hydration.

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What does 10 cm dilation mean

Complete cervical dilation.

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What does 100% effacement mean

Complete cervical effacement.

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What does 0 station mean

The presenting fetal part is engaged at the level of the ischial spines.

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What is fetal presentation

The fetal part entering the pelvis first.

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What is fetal lie

The relationship between the fetal long axis and maternal long axis.

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What are the main fetal presentations discussed

Cephalic, breech, and transverse/shoulder.

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What should the nurse assess after rupture of membranes

Color, odor, amount, and time.

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What are the three major FHR monitoring methods

Auscultation, palpation, and electronic fetal monitoring.

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What is the normal FHR baseline

110–160 bpm.

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What is bradycardia

FHR below 110 bpm.

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What is tachycardia

FHR above 160 bpm.

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What is the acceleration rule at 32 weeks or greater

15 bpm increase for 15 seconds: 15 × 15.

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What is the acceleration rule before 32 weeks

10 bpm increase for 10 seconds: 10 × 10.

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What causes early decelerations

Fetal head compression.

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What causes late decelerations

Poor placental perfusion.

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What causes variable decelerations

Umbilical cord compression.

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What is a prolonged deceleration

A decrease of at least 15 bpm lasting 2–10 minutes.

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What MUST Category I have

Baseline 110–160, moderate variability, and NO late or variable decelerations.

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Can early decelerations occur in Category I

Yes.

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What is Category II

Any tracing that is not Category I or Category III.

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What MUST Category III have

Absent variability PLUS recurrent late decelerations, recurrent variable decelerations, or bradycardia.

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What other finding makes a tracing Category III

A sinusoidal pattern.

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What is the easiest way to identify Category II

Exclude Category I and Category III; if it fits neither, it is Category II.

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What is the key difference between Category I and Category III

Category I has moderate variability; Category III has absent variability with the specified abnormal findings.

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What should the nurse do first for a nonreassuring fetal tracing

Change the mother's position.

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What should the nurse do with Pitocin during a nonreassuring tracing

Stop Pitocin if it is running.

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Why are IV fluids given for a nonreassuring tracing

To correct maternal hypotension.

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When should oxygen be given according to the lecture

When maternal oxygen saturation is low.

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Why perform a cervical/vaginal assessment for a nonreassuring tracing

To assess cervical status and rule out prolapsed cord.

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What is the final action after initiating interventions for a nonreassuring tracing

Notify the provider.

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What is the nursing sequence for a nonreassuring tracing

Position → Stop Pitocin → IV fluids/correct hypotension → O₂ if maternal SpO₂ is low → Assess cervix → Notify provider.

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What is an NST

A test that evaluates fetal heart rate reactivity.

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What makes an NST reactive

Two appropriate accelerations.

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What may be done after a nonreactive NST

A BPP may be performed.

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