Week 9 pt 1 highlights Flashcards

(49 cards)

1
Q

List 4 parts of fetal surveillance

A

1) Non-stress Test
2) Biophysical Profile
3) Oxytocin Challenge Test (Contraction Stress Test)
4) Kick counts

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2
Q

What is the goal amount of kick counts?

A

> 10 movements/2hrs

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3
Q

Kick counts:
1) By ______wks, movement should be felt (but varies)
2) If mom perceives _________________ fetal movement, further testing should occur.

A

1) 20wks
2) decreased

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4
Q

1) Fetal Heart Rate Auscultation should be done with a ___________ by the 8th week
2) After 16 weeks, use __________________.
3) Do a ________________ by the 18th week

A

1) doppler
2) external fetal monitor
3) fetoscope

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5
Q

Baseline fetal HR auscultation must be for a minimum of __________ mins in any 10min segment

A

2 mins

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6
Q

1) The most common means of assessing the health and viability of the fetus throughout labor is what?
2) What does it track?
3) What testing is it used to perform?

A

1) External Fetal Heart Rate (FHR) Monitor
2) Tracks the variability in the fetal heart rate
3) Used to perform Non-Stress and Contraction Stress testing

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7
Q

Why is Intrapartum Fetal Surveillance Important?

A

An indirect measurement of indicators (like FHR) of fetal status (oxygenation) during labor

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8
Q

What is the only way to accurately assess the beat-to-beat variability of the fetal heart?

A

Scalp electrode

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9
Q

ONLY way to accurately determine the strength of a contraction is what?

A

Internal Pressure Catheter

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10
Q

Give 2 examples of internal fetal monitoring

A

1) Scalp electrode
2) Internal Pressure Catheter

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11
Q

Intrapartum Fetal Surveillance:
1) When can you start intermittent surveillance if there is a diagnosed underlying fetal or maternal issue?
2) Is it intermittent appropriate if low-risk labor?

A

1) Can start around 32weeks for >20min twice weekly (outpt)
2) May be appropriate for low-risk labors (*if staffing adequate)

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12
Q

What type of intrapartum fetal surveillance is standard practice in the US?

A

Continuous fetal surveillance

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13
Q

Define intrapartum

A

the time spanning childbirth from onset of labor through the delivery of the placenta

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14
Q

Contraindications to Intermittent Fetal Monitoring include what categories?

A

1) Maternal medical illness
2) Obstetric complications
3) No prenatal care
4) Tobacco use and/or drug abuse

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15
Q

Intermittent Fetal Monitoring: During labor, listen from the beginning of one ____________ to the beginning of the next _____________ to assess fetal wellbeing

A

contraction; contraction

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16
Q

Should convert to continuous monitoring if any suspicion of complications, BUT in the US, ______________ monitoring is standard of care

A

continuous

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17
Q

Do NOT Interpret FHR in Isolation; what are some groups of factors?

A

1) Timing
2) Size + Hx of complications
3) Clinical factors
4) Misc factors

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18
Q

Non-Stress Test (NST): Evaluation of the __________________ while the fetus is not placed under any stress

A

fetal heart rate tracing

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19
Q

Non-Stress Test (NST): Measures what 3 things for at least 20min to see how the baby is tolerating the pregnancy?

A

fetal heart rate, patterns, and accelerations

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20
Q

Non-Stress Test (NST): What is reassuring? What is not?

A

Reactive = reassuring
Non-reactive = non-reassuring
Equivocal = concerning

21
Q

Non-Stress Test (NST): Does it require an IV, oxytocin, or contractions?

A

No, not required

22
Q

Biophysical Profile (BPP):
1) What is it?
2) When is it done?

A

1) NST + ultrasound
2) To evaluate health of the fetus if there are concerns or if pregnancy is high-risk (during late 2nd or 3rd trimester for 30 minutes)

23
Q

Biophysical Profile (BPP): What 5 things does it measure?

A

1) Variability (from NST)
2) Tone
3) Movement
4) Breathing movements
5) Amniotic fluid volume (AFV)

24
Q

BPP:
1) 2 points are assigned for each __________ variable
2) What score is normal and reassuring?

A

1) NORMAL
2) Score of 8-10 with normal AFV

25
BPP: 1) What score is worrisome and should be repeated next day? 2) What is abnormal and associated with increased perinatal morbidity and mortality?
1) Score of 6-7 2) Score <6
26
What is the goal of Electronic Fetal Monitoring during labor?
Detect signs of fetal jeopardy in time to intervene before irreversible damage occurs
27
List 2 types of stress tests
Oxytocin Challenge Test (OCT) or Contraction Stress Test (CST)
28
Baseline FHR: 1) How long do you observe HR? 2) What is normal baseline FHR?
1) >2 and <10 minutes 2) 110–160 bpm
29
1) Define variability in FHR 2) What is Moderate (normal) variability?
1) Fluctuations in the baseline FHR that are irregular in amplitude and frequency in 10min window 2) Amplitude range 6–25 bpm
30
Accelerations [in FHR]: 1) Define this 2) Define it > 32 weeks of gestation 3) Define it < 32 wks of gestation
1) A visually apparent abrupt increase in the FHR above the baseline 2) Peak of >15 beats per minute (bpm) above baseline for >15 seconds but <2 minutes from onset to return. < 32 weeks of gestation 3) Peak of > 10 bpm above baseline with a duration of > 10 seconds but <2 minutes from onset to return.
31
If an acceleration lasts > 10 minutes, it is a _____________ change
baseline
32
Early decelerations: Vagal stimulation is commonly associated with what 3 things?
Head compression, uterine contractions, or a prolonged vaginal exam
33
Define early decelerations
A normal, benign, gradual physiologic decrease in fetal heart rate not associated with fetal hypoxemia or acidosis
34
Variable Decelerations of FHR: Reflects a fetal autonomic reflex response to ________________________
compression of umbilical cord
35
Late Decelerations: Onset, nadir, and recovery of the deceleration occur _______ the beginning, peak, and ending of the contraction
after
36
Late deceleration = what?
HYPOXIA
37
Decrease in blood to baby means one of what 2 things is happening?
Not enough O2 to baby OR Deoxygenated blood being delivered to baby
38
Cardinal difference between early and late decelerations is what?
Delayed in timing, with the lowest point of the deceleration occurring AFTER the peak of the contraction.
39
Late decelerations: Visually apparent *gradual* decrease and return to baseline FHR associated with what 2 things?
uterine contraction and transient hypoxemia
40
Prolonged Deceleration is defined as what?
Decrease from baseline is ≥15 beats/min, lasting ≥2 minutes but <10 minutes from onset to return to baseline.
41
List 4 causes of prolonged deceleration
1) **Cord compression** 2) Uteroplacental insufficiency 3) Maternal hypoxia 4) Fetal [hemorrhage, rapid descent, FSE]
42
FHR tracing patterns reflect __________ fetal acid-base status
current
43
Interpretation of FHR Patterns: What are the 3 categories?
Category 1 (normal) Category 2 (concerning) Category 3 (abnormal)
44
Category I FHR tracings include: 1) What baseline rate? 2) What Baseline FHR variability? 3) What is absent? 4) What 2 things may or may not be present?
1) 110–160 bpm 2) Moderate 3) Late, Variable, or Prolonged Decelerations = absent 4) Early decelerations and accelerations
45
What is strongly predictive of normal fetal acid-base status at time of observation and requires no change in management?
Category I FHR tracings
46
What 4 things does category 2 tracing include?
1) Rate 2) Baseline FHR variability 3) Accelerations 4) Periodic or episodic decelerations
47
1) Category 2 Tracings (concerning) includes what? 2) What are they NOT predictive of? 3) Are they normal?
Everything not in category 1 or 3 tracings Not predictive of abnormal fetal acid-base status Not normal either
48
What are the 3 possible interventions for category 2 tracings?
1. change the woman’s position to left lateral recumbent 2. reduce infusion rate of oxytocin 3. increase IV fluids
49
Category 2 Tracings (concerning): When abnormal patterns are seen, the first step should be what?
Search for the underlying cause.