Shared Flashcard Set

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OB
test 3
133
Nursing
Post-Graduate
11/02/2010

Additional Nursing Flashcards

 


 

Cards

Term
relaxin and progesterone
Definition
relaxation of smooth muscle tissue up to 34 weeks is caused by?
Term
increase, decrease
Definition
around 34 weeks, estrogen and contraction associated proteins                    and uterotonic inhibitors           . 
Term
Uterotonics- prostaglandins and oxytocin
Definition
at the onset of labor the myometrium is stimulated by what?
Term
prostaglandins (PGE2)
Definition
produced in the decidua, the placenta, the chorion and especially the amnion
Term
oxytocin
Definition
produced in the posterior lobe of the maternal and fetal pituitary gland
Term
fetal body straightens
Definition
As the uterus elongates during contractions what happens to the fetus?
Term
intensity can not be felt but stretches the cervix causing it to thin and flatten
Definition
what do contractions do to the cervix?
Term
cornus, 15
Definition
muscle fibers of the upper uterine segment contract beginning in the               and move downward within                      seconds 
Term
drawn upward and forward
Definition
what happens to the rectum and vagina during contractions?
Term
lightening
Definition
fetus descending into the pelvic inlet
Term
Braxton-Hicks contractions
Definition
irregular, intermittent contractions that become more uncomfortable closer to labor
Term
premonitory to labor
Definition
cervix begins to soften and ripen(weaken) when?
Term
premonitory to labor
Definition

When does the "bloody show" occur?

aka losing your mucus plug

Term
24-48 hours before labor
Definition
when does nesting usually occur?
Term
signs of labor
Definition
loss of 1-3lbs, n/v/d, and indigestion can occur 
Term
does not decrease the intensity of contractions but helps relax
Definition
in true labor, relaxing in warm water does what?
Term
false labor
Definition
irregular contraction that do not increase in duration or intensity
Term
false labor
Definition
contractions that are lessened with walking, rest, and warm water
Term
false labor
Definition
contractions that produce no effect of the cervix
Term
passenger, passageway, position, powers, psyche
Definition
the 5 Ps
Term
face, base of skull, vault of cranium
Definition
3 major parts of the fetal skull
Term
molding
Definition
cranial bones overlap during contractions and demands of unyielding pelvis
Term
gynecoid 
Definition
best pelvis type for delivery with largest diameter
Term
android
Definition
heart shaped pelvis
Term
anthropoid pelvis
Definition
longer front to back
Term
platypelloid pelvis
Definition
narrow front to back pelvis
Term
fetal attitude
Definition
refers to the relation of fetal parts to one another
Term
fetal lie
Definition
refers to the relationship of the cephalocaudal axis of the fetus to the cephalocaudal axis of the woman
Term
fetal presentation
Definition

 

determined by fetal lie and by body part of fetus that enters pelvic passage first - this portion of fetus called presenting part

 

Term
head flexed forward with chin almost to chest, arms and legs flexed
Definition
normal fetal attitude
Term
engagement of presenting part
Definition
occurs when largest diameter of presenting part reaches or passes through pelvic inlet
Term
station
Definition
refers to relationship of presenting part to imaginary line drawn between ischial spines of maternal pelvis
Term
0 station
Definition
when the presenting part is at the ischial spines
Term
turn
Definition
when the baby is at zero station it begins to?
Term
uterine muscular contractions
Definition
primary force for contractions
Term
abdominal muscles
Definition
secondary force of contractions
Term
mild, regular contractions that begin and increase in frequency and intensity with cervical effacement and dilation beginning
Definition
latent phase physiologic changes
Term
relief that labor has begun and high excitement with some anxiety
Definition
latent phase psychological changes
Term
cervix dilates from 4-7cm, fetus begins to descend into the pelvis
Definition
active phase physiological changes
Term
fear and loss of control, anxiety increases
Definition
active phase psychological changes
Term
dilate from 8-10 cm, fetus descends rapidly into passageway, rectal pressure, possibly n/v
Definition
transition phase physiological changes
Term
increased feelings of anxiety, irritability, eager to complete birth experience, need to have support at bedside
Definition
transitional phase psychological changes
Term
latent, active, and transitional phases
Definition
first stage of labor includes?
Term
second stage of labor
Definition
begins with complete cervical dilation and ends with birth
Term
sacral and obturator nerves
Definition
mother pushes due to pressure on what?
Term
intra-abdominal
Definition
what type of pressure is used during pushing by the mother?
Term
bulge, flatten, and move anteriorly
Definition
what happens to the perineum as the fetus begins to descend?
Term
sense on of purpose, may feel out of control, irritable, and frightened 
Definition
second stage psychological changes
Term
placental separation, delivery-either pushed out or slight traction on cord 
Definition
third stage physiological changes
Term
relief, focus on welfare of infant and may not notice delivery of placenta
Definition
third stage psychological changes
Term
increased pulse, decrease BP, uterus contracted and between umbilicus and symphysis pubis, shaking, urine retention from decreased tone and trauma
Definition
fourth stage physiological changes
Term
euphoria and energized, thirsty and hungry
Definition
fourth stage psychological changes
Term
increases 31%
Definition
cardiac output in first stage of labor
Term
up to 50%
Definition
cardiac output in second stage
Term
60-80% higher for about an hour
Definition
following birth cardiac output is?
Term
rises with each contraction and possibly with pushing
Definition
blood pressure during labor
Term
40% increase in O2 demand and consumption, with mild respiratory acidosis by the time of birth
Definition
respiratory changes in labor
Term

increase in renin, plasma renin activity, and angiotensinogen

edema at base of bladder from fetal head

Definition
renal changes during labor
Term
decreased motility, emptying prolonged, volume remains increased
Definition
GI during labor
Term
WBC increase, and blood glucose decreases
Definition
immune changes in labor
Term
decrease in pH
Definition
Blood flow decreases to fetus at peak of each contraction leading to
Term
decrease in pH
Definition
woman holding her breath during pushing leads to 
Term
transitional
Definition
if not ruptured artificially. most membranes rupture spontaneously in what stage of labor?
Term
25%
Definition
what percent of women start labor with rupture of membranes at term?
Term
GBBS
Definition
important bacteria that can cross the membranes during labor?
Term
18 hours
Definition
antibiotics should be given if ROM is longer than?
Term
leopold's maneuver 
Definition
used to figure out the position of the baby and is as accurate as ultrasound
Term
every 30 min when active
Definition
how often should low-risk women in the 1st stage of labor have fetal heart tones auscultated?
Term
every 15 minutes
Definition
how often should low risk women in the second stage of labor have fetal heart tone auscultated?
Term
every 15 minutes when active
Definition
in the first stage of labor how often should high risk women have fetal heart tones auscultated?
Term
every 5 minutes
Definition
in the second stage of labor how often should fetal heart tones be monitored in a high risk patient?
Term

 Count FHR for 30-60 sec. between UC.  Then auscultate during and after UC for 30 sec to determine rate, rhythm and increases or decreases.

Definition
procedure for auscultating fetal heart rate
Term
fetal movements
Definition
during latent labor mother should monitor 
Term
autocorrelation
Definition
the process of averaging consecutive beat to beat frequencies in external monitoring
Term
ultrasound and tocodynamometer
Definition
external fetal monitors
Term
detects the fetal ECG and calculates the fetal heart rate based upon the interval between R waves
Definition
internal monitoring: fetal scalp electrode
Term
intrauterine pressure catheter and fetal scalp electrode
Definition
internal fetal monitors
Term
6-25 bpm
Definition
normal fetal heart variability
Term
110-160 bpm
Definition
normal baseline fetal heart rate
Term

over 32 weeks 15X15

less than 32 weeks 10X10

Definition
normal fetal heart rate accelerations
Term
too much pitocin
Definition
most common cause of late decelerations
Term
late decelerations
Definition
refer to a smooth U-shaped fall in the fetal heart rate beginning after the contraction has started, and ending after the contraction has ended
Term
mild late decels
Definition
a reflex central nervous system response to hypoxia in fetal heart
Term
severe late decels
Definition
have a component of direct myocardial depression, associated with a fall in fetal pH and perinatal morbidity and mortality
Term
narcotics
Definition
sinusoidal patterns usually related to?
Term
severe decels
Definition
down to 60bpm, 60 below baseline, lasting for 60 seconds- caused by cord compression
Term
saltatory pattern
Definition

mild hypoxemia with exagerated variability

Term
ominous patterns
Definition
associated with fetal acidemia and hypoxemia
Term
the fetus is not acidotic
Definition
presence of FHR accelerations almost always indicates
Term
28 weeks
Definition
due to the development of the parasympathetic nervous system, the absents of variability is abnormal after?
Term
prolonged acceleration
Definition
longer than 2 minutes but less than 10 minutes
Term
change in baseline
Definition
acceleration of longer than 10 minutes or more
Term
late decel
Definition
when the nadir occurs after the peak of the uterine contraction
Term
early decels
Definition
decels that coincide with the uterine contraction
Term
variable decels
Definition
The decrease is  15 bpm, lasting15 secs and <2 minutes from onset to return to baseline, abrupt decel
Term
cord prolapse from artificial rupture of membranes or prematurity and not being in correct position
Definition
causes of prolonged decels
Term
2 min apart
Definition
normal uterine contractions should not be less than
Term
75 secs
Definition
normal uterine contraction duration should be less than
Term
macrosomia
Definition
a fetus weighing over 4500g is called
Term
the baby is having trouble moving down- too big?
Definition
what could slow transitional phase indicate?
Term
suprapubic pressure
Definition
nursing care during shoulder dystocia?
Term
amnioinfusion
Definition
used to provide cushion and relieve variable decels, and to dilute meconium
Term
warm normal saline or ringer’s lactate solution, 250-500ml
Definition
what is infused in amnioinfusion?
Term

amnionitis; polyhydramnios, twins, uterine hypertonus; uterine anomaly; fetal anomaly

Definition
contraindications for amnioinfusion?
Term
after 30 minutes or 3 pop offs
Definition
when should you quit using the vacuum for delivery?
Term
episiotomy
Definition

Perineal body incised at 3-4cm dilation of the vaginal introitus

Term
DIC and hypoxia
Definition
risks involved with placental abruption
Term
hypertension and trauma
Definition
causes of placental abruption
Term
previous uterine scar, miscarriage, and abortion
Definition
placenta previa is more common in?
Term
prevention, counterpressure, oxygen, IV fluids, moist compress on visible cord
Definition
treatment for cord prolapse
Term
cord prolapse
Definition

Risk when the presenting part is not firmly against the cervix

Term
used for malpresentation to turn the fetus
Definition
external cephalic version
Term
36-37 weeks
Definition
how far along must a pregnancy be for external cephalic version?
Term
ample aminiotic fluid, singleton pregnancy, presenting part not engage, and reactive NST
Definition
criteria for external cephalic version
Term
c-section
Definition
if fetal distress is encountered during external cephalic version 
Term
tocolytics administered, IV in place, CBC, type and screen
Definition
before external cephalic version what should be done?
Term
cord prolapse and fetal malpreseantation
Definition
risks with hydramnios
Term
hydramnios or polyhydramnios
Definition
greater than 2000 mL of amniotic fluid
Term
fetus not swallowing amniotic fluid due to neurologic problems
Definition
cause of hydramnios
Term
over-distended uterus (polyhydramnios)
Definition
most common cause of postpartum hemorrhage
Term
oligohydramnios
Definition

Largest vertical pocket of fluid is less than 5 cm on Ultrasound

Term
oligohydramnios
Definition
associated with renal malformations and placental insufficiency(IUGR and post dates)
Term
Continuous EFM;IV fluid; position changes; amnioinfusion
Definition
care for oligohydramnios includes
Term
sign of placenta acreta
Definition

Retained placenta:  greater than 30 minutes after birth of the fetus

Term
acreta(78%)
Definition
placenta attached to the surface of the myometrium
Term
increta(17%)
Definition
placental tissue invades the myometrium
Term
percreta(5-7%)
Definition
placental tissue extends all the way through the myometrium
Term
narcotics, under sedation or anesthesia 
Definition
in manual removal of the placenta what is used to relax the uterus?
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