Module 2: Part 4 Flashcards

1
Q

A sinusoidal FHR pattern is described as:

A

Smooth and Sine wave-like, undulating pattern with a cycle frequency of 3-5 BPM that continues for at least 20 min or more

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2
Q

What are the causes of sinusoidal FHR patterns? (7)

A

Rh immunization
Maternal Hemorrhage
Transfusion
Pre-eclampsia
ABRUPTION
Fetal Anemia
Maternal opioids

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3
Q

What are the interventions for sinusoidal FHR patterns? (6)

A

Maternal blood type
H/O trauma
Oxygenation
GET HELP ASAP
Fetus need Intrauterine transfusion for Anemia?
STAT Cesarean Section

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4
Q

T/F sinusoidal FHR patterns are bad

A

true

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5
Q

Saltatory pattern may signal…

A

Acute fetal hypoxia

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6
Q

Excessive swing in variability (more than 25 bpm) is characteristic of what pattern?

A

Saltatory Pattern

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7
Q

What are 3 “at risk” FHR tracings?

A

Recurrent late decelerations + no baseline variability
Recurrent variable decelerations + no baseline variability
Substantial bradycardia + no baseline variability

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8
Q

What interventions should be included in the Management of Nonreassuring Tracings? (5)

A

Left Uterine Decubitus position (LUD)
Stop uterine stimulants (oxytocin)
Terbutaline 0.25 mg SQ
Correct maternal hypotension associated with regional (fluids, ephedrine/neosynephrine)
Oxygen (via mask)

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9
Q

What position should you put the mother in if you see nonreassuring tracings?

A

Left Uterine Decubitus position (LUD)

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10
Q

ACOG recommends that for HIGH risk you should review the FHR monitor tracing every ___ minutes in first stage of labor and every __ minutes in second stage

A

every 15 minutes in first stage of labor and every 5 minutes in second stage

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11
Q

ACOG recommends that for LOW risk you should review the FHR monitor tracing every ___ minutes in first stage of labor and every __ minutes in second stage

A

every 30 minutes in first stage and every 15 minutes in second stage of labor

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12
Q

T/F Haven’t really confirmed a greater benefit with continuous electronic FHR monitoring during labor

A

true

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13
Q

______ proposed a three-tier system for categorization of FHR patterns

A

National Institute of Child Health and Human Development (NICHD)

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14
Q

What is category 1 for the Three-Tiered FHR Interpretation System?

A

Category I (normal): strongly predictive of normal fetal acid-base status at the time of observation, re-eval

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15
Q

What is category 2 for the Three-Tiered FHR Interpretation System?

A

Category II (indeterminate): not predictive of abnormal fetal acid-base status, but without adequate evidence to classify as normal or abnormal

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16
Q

What is category 3 for the Three-Tiered FHR Interpretation System?

A

Category III (abnormal): predictive of abnormal fetal acid-base and prompts evaluation/delivery

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17
Q

What are the 6 other fetal assessment methods?

A

Fetal scalp blood pH
Fetal scalp stimulation
Vibroacoustic stimulation
Umbilical artery velocimetry
BPP
Meconium-stained amniotic fluid

18
Q

Dark green material in the fetal intestines and discharged at or near the time of birth is _____

A

meconium

19
Q

Presence of meconium in the amniotic fluid during labor may indicate ____

A

fetal distress

20
Q

Moderate to thick meconium associated with ____ and ____

A

low Apgar’s and lower umbilical arterial blood pH

21
Q

What should we include in the assessment of uterine activity? (5)

A

Resting tone
Duration
Intensity
Frequency
Cervical change

22
Q

Normal Uterine Contraction

A

Less than or equal to 5 contractions in 10 minutes (averaged over 30 min)

23
Q

Tachysystole Uterine Contraction

A

6 contractions in 10 min

24
Q

Single sustained uterine contraction without relaxing for greater than 2 minutes

A

Tetanic contraction/Uterine hypertonus

25
Q

Decreased Uteroplacental perfusion can be the result of:

A

Decreased cardiac output
Chronic vascular disease (HTN, Diabetes)
Dehydration during labor

26
Q

Decreased Oxygen Delivery to the placenta can result from:

A

Sepsis and hypotension
Chronic conditions

27
Q

T/F Respiratory Failure (Asthma) is a correctable maternal factor

A

true

28
Q

Increased fetal oxygen consumption can result from: (2)

A

Maternal fever
hyperglycemia

29
Q

Is FHR monitoring a reliable way to assess Non reassuring fetal status?

A

No

30
Q

increase in rate of operative delivery is a limitation of _____

A

FHR monitoring

31
Q

3 Tiered System for Classifying FHR Tracings

A
32
Q

Meconium aspiration syndrome

A

when the baby breathes in meconium at birth and this can make the baby very very sick (per Dr.Rogers)

33
Q

uterine hyperstimulation is when _____

A

tachysystole or tetanic contraction/uterine hypertonus uterine contraction patterns leads to a nonreassuring fetal heart rate pattern (per Dr.Rogers)

34
Q

Uterine Hypertonus ( or tachysystole)
can cause (2)

A

Decreased uteroplacental perfusion
Contractions constrict the uterine spiral artery, decreasing oxygen delivery to the placenta

35
Q

Increased fetal oxygen consumption
could be due to: (2)

A

Maternal fever
hyperglycemia

36
Q

Uterine rupture from uterine hyperstimulation especially in the setting of uterine scar and
Placental abruption are factors that could lead to

A

nonreassuring fetal heart monitor patterns

37
Q

_______ Contributes to fetal hypoxia, acidosis and death

A

umbilical cord prolapse

38
Q

with umbilical cord prolapse the Cord prolapses into the _____ causing ______

A

Cord prolapses into the cervix causing cord compression and fetal bradycardia

39
Q

An umbilical cord prolapse requires _____

A

manual elevation of the cord and an emergent cesarean delivery

40
Q

what is the most common life-threatening complication of vaginal breech delivery?

A

umbilical cord prolapse

41
Q

What are the 3 most common contributing factors for umbilical cord prolapse?

A

Footling breech, small fetus or multiparity

42
Q

Hyper-uterine can cause:

A

Placental abruption
Uterine rupture
Cervical tears