Chapter 13 Flashcards
Braxton hicks contraction
Irregular painless contractions throughout pregnancy
Many don’t notice until the third trimester
Women who are unsure or have more than 5 or 6 regular contractions in an hour or have other early signs or labor should call their doctor
Explain normal growth of fundus weeks 8,12,16,20,36,40
8-?
12- symphysis pubis
16- midway between symphysis pubis and umbilicus
36- xiphoid process
40- uterus sinks to lower level after fetal head descends
Chadwick’s sign
Bluish purple color of cervix extending to the vagina and labia
Goodell’s
Cervix softens
Mucus plug
Blocks bacteria from getting to uterus
Bloody show
One of the earliest signs of labor
Blood volume
Increase as much as 45%
Increased plasma volume
Rbc Mass increase by 250-450
Hemodilution
Blood pressure
Supine hypotension- occluding vena cava or aorta
Turn to left side unless baby is in distress then turn to right side
Wedge pillow under the hip
5 causes of decreased systemic vascular resistance
- Vasodialation due to progesterone and prostaglandins
- Uteroplacental unity provides low resistance and greater area for circulation
- Heat production causes vasodilation
- Decreased sensitivity to angiotensin 2
- Relaxant factors example nitric oxide
Melisma, cholasma
Increase pigmentation brownish patches on forehead cheeks and nose that occur as early as 8weeks due to elevate estrogen, progesterone and melanocytes-stimulating hormone
Changes by placental hormones
Human chorionic gonadotropin
Estrogen- stimulates uterine growth and increase blood supply, aids in developing the ductal system and associated with hyperpigmentation
Progesterone
Human chorionic somatomammotropin- increases availability of glucose
Relaxin-inhibits uterine activity, softens tissue in cervix, lengthens pubic ligaments
Presumptive signs
Amenorrhea Nausea and vomiting Fatigue Urinary frequency Breast and skin changes Vaginal and cervical color changes Fetal movement
Probably signs
Abdominal enlargement Cervical softening Changes in uterine consistency Fetal movements at 16 weeks Ballottement-fluid Braxton hicks contractions Palpating of the fetal outline Palpating of fetal outline Uterine soufflé Pregnancy tests
Positive signs
Auscultation of fetal heart signs
Fetal movement felt by examiner
Visual of the fetus
Preconceptual/interconceptual care
Complete history and physical exam Medications are reviewed and changed if necessary Obese women to lose weight Smoking cessation Vaccinations varicella and hep b Folic acid