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Release of egg from ovary
Placenta and accompanying membranes that are expelled after birth
Structure with two arteries and one vein that connects fetus to placenta
Membranes that surround and protect the developing fetus
Clear watery fluid that surrounds and protects the devloping fetus
Physiologic Changes in Pregnancy
- Repiratory: 20% increase in O2 consumption. 40% increase in tidal volume
- Cardiovascular: Maternal blood volume increases by 45%. HR increases by 10-15 bpm.
- GI: N/V common
- Urinary: More urinary output
- Musculoskeletal: Loosens pelvic joints. Low back pain.
Causes of Bleeding During Pregnancy
- Ectopic Pregnancy
- Placenta Previa
- Abruptio Placentae
Termination of pregnancy before the 20th week of gestation.
Placenta develops of cervical opening at the bottom of the uterus.
Placenta seperates from uterine wall causing significant hemorrhage.
Stages of Labor