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OB 8 (L&D part 1)
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Question | Answer |
---|---|
Which abx should be avoided during pregnancy due to potential teratogenic effects? | Fluoroquinolones, tetracyclines, aminoglycosides, sulfonamides |
What laparoscopic findings can be seen in endometriosis? | Chocolate cysts, powder-burn lesions in peritoneum or on ovaries. |
Why is thiamine given in a glucose infusion to alcoholics with hypoglycemia? | In the abscence of thiamine glucose can worsen Wernicke Encephalopathy. |
Fetal tachycardia is when FHR is > than ____ for > 10minutees. | 160 |
Fetal bradycardia is when FHR is < than ____ for > 10minutees. | 110 |
A sinusoidal, oscillating amplitude of 5-15 bpm (baseline 120-160) often due to fetal ______. | anemia |
What causes loss of variability in FHR? | poor short-term or long term variability due to fetal sleep, CNS depression, or fetal acidosis, normal variability ranges for 6-25bpm |
What cause early decels in FHR tracing? | due to pressure on fetal head |
What causes variable decels in FHR tracing? | often due to cord compression |
What causes late decels? | due to uteroplacental insufficiency/fetal hypoxia |
What type of fetal surveillance strategy is typically for high risk pregnancies? | weekly/biweekly biophysical profile or nonstress test |
What is considered a normal, reactive non-stress test? | In 20 min, 2 episodes of 15bpm for 15 sec |
What are the first steps in the management of non-reassuring fetal heart tones during labor? | place maternal O2 + turn off Pitocin + put mom on left side. Correct hyperstimulation if needed with terbutaline, correct any hypotension in mom, SVE and place FSE(check for cord prolapse), consider amnioinfusion or c-section |
Match the following statement to the type of deceleration with which it belongs: a check mark-shaped fetal heart tracing | late |
Match the following statement to the type of deceleration with which it belongs: onset either before, during or after uterine contraction | variable |
Match the following statement to the type of deceleration with which it belongs: consistent dips in fetal heart tones when uterine contractions begin | early |
Match the following statement to the type of deceleration with which it belongs: occur after uterine contractions has begun | late |
Match the following statement to the type of deceleration with which it belongs: unpredictable changes in fetal heart tone tracing | variable |
What would be some contraindications to fetal scalp electrode placement? | breech presentation, pregnancy <36 weeks, maternal viral infection such as HIV, HepC, active HSV outbreak |
What defines prolonged latent phase (in both nulliparous and multiparous pts)? | does not progress from latent to active phase for > 20 hours in nulliparous pt or >14 hours in a mutiparous pt. |
What defines a prolonged active phase of labor dystocia (in both nulliparous and multiparous pts)? | active phase >12 hours or in Nulliparous < 1.2 cm/hour dilation, Multiparous < 1.5 cm/hr dilation |
What type of contraction pattern is typically necessary for cervial dilation to occur? | contractions q 2-3 min |
What are the 3 Ps that must be assessed in the event of labor dystocia? | Power (contraction strength, duration, and frequency), Passenger (fetal weight, fetal lie, presentation, and position), Passage (adequacy of pelvis in shape and diameter) |
What is the definition of arrest of descent? | arrest of descent occurs when the cervix does not continue to dilate during the active phase: Multips: stage 2> 2 hours(epidural), Stage 2 > 1hour (no epidural. In Primips stage 2> 3 hours (epidural), stage 2> 2 hours(no epidural) |
How is arrest of descent generally managed? | reassess the 3 Ps, placement of IUPC to better assess "power", augmentation with oxytocin to augment "power", C/s if power, passenger and passage are unable to to be further augmented. |
One hour into the active stage of labor, a fetus' heart tones become nonreassuring. What actions are taken immediately? | maternal O2, remove uterine stimulating agents, left latera decubitus positon |
What could you do to manage uterine hyperstimulation? | add terbutaline to stop uterine contractions |
What is the role of fetal pulse oximetry in L&D? | no role |