The Powers Flashcards
Powers: Uterine Contractions cause (4)
1) Uterine Contractions cause effacement and dilation of cervix
2) Descent of fetus
3) Involuntary urge to push
4) Voluntary bearing down in 2nd stage of labor helps with expulsion of fetus
(ATI 121)
Powers: PRIMARY Contractions ( 4 phases)
Primary and Secondary forces of labor
1) Build-up phase
2) Acme (peak)
3) Decrement (letting up phase)
4) Resting phase (nadir)
Powers: PRIMARY Contractions: FREQUENCY (2)
Primary and Secondary forces of labor
Frequency
1) time or minutes
2) onset of one contraction to the onset of the next contraction
Powers: PRIMARY Contractions: INTENSITY
Primary and Secondary forces of labor
Intensity
1) Strength of contraction at the acme (peak), which can be palpated as mild, moderate, strong, or detected with a fetal monitor externally or measured internally in mmHG
(Hogan 161)
Powers: PRIMARY Contractions: DURATION
Primary and Secondary forces of labor
Duration
Length of contraction measured in seconds from beginning of increment to end of decrement
Powers: SECONDARY Contractions: (3)
1) Voluntary use of abd muscles
2) During second stage of labor
3) To facilitate fetal descent and delivery
Powers: PRIMARY Contractions: Effacement (4)
1) With each contraction muscles of upper uterine segment shorten
2) Drawing up of internal os and cervical canal into uterine sides
3) Measure 0-100%
4) Multigravidas effacement and dilation normally occur simultaneously
Powers: PRIMARY Contractions: Dilatation
1) As uterus elongates with contractions
2) Fetal body straightens and exerts pressure against lower uterine segment and cervix
3) Measure 0-10 cm