Week 7 Flashcards
Causes of hypercoagulability during childbirth
■ Factor VIII complex increases during labor and birth.
■ Factor V increases following placental separation.
■ Platelet activity increases at delivery.
■ Fibrin formation increases at delivery.
What is the criteria for postpartum hemorrhage?
blood loss greater than 500 mL for vaginal deliveries and 1,000 mL for cesarean deliveries with a 10% drop in hemoglobin and/or hematocrit
What are the main causes of postpartum hemorrhage?
Uterine atony, retained placental fragments, lower general tract lacerations
about how many people experience postpartum hemorrhage after a childbirth?
10%
what are major complications of postpartum hemorrhage?
Hemorrhagic shock due to hypovolemia
what is the difference between primary and secondary postpartum hemorrhage?
Primary occurs within the 1st 24 hours and is due to uterine anatomy, lacerations and or hematoma. Secondary occurs more than 24 hours post birth and due to hematomas, subinvolution, or retain placental tissue
what are the risk factors of postpartum hemorrhage related to the baby?
■ Neonatal macrosomia: Birth weight greater than
4,000 grams
■ Chorioamnionitis
■ Congenital or acquired coagulation defects
What is the major cause of postpartum hemorrhage?
Uterine atony
what are the risk factors of postpartum hemorrhage related to the mother?
■ Maternal obesity
■ High parity
■ Prior PPH
■ Operative vaginal delivery: Use of forceps or vacuum extractor
■ Augmented or induced labor
■ Ineffective uterine contractions during labor: Prolonged first and second stage of labor
■ Precipitous labor and/or birth
■ Polyhydramnios
What are 5 indications of primary postpartum hemorrhage?
■ A 10% decrease in the hemoglobin and/or hematocrit postbirth
■ Saturation of the peripad within 15 minutes
■ A fundus that remains boggy after fundal massage
■ Tachycardia (late sign)
■ Decrease in blood pressure (late sign)
What are some medical managements to postpartum hemorrhage?
■ Bimanual compression of the uterus
■ Medications
■ Non-surgical interventions such as uterine packing
■ Surgical interventions such as hysterectomy
What are some IV therapies to reduce the risk of hypovolemia in postpartum hemorrhage?
■ Isotonic, non-dextrose crystalloid solutions (normal saline
or lactated Ringer’s solution)
■ A ratio of 3 to 1: 3 liters of IV solution for each liter of
estimated blood loss
■ Blood replacement to reduce risk for hemorrhagic shock
What are medications to administer in postpartum hemorrhage? And how do they work?
Oxytocin, methylergonovine, and carboprost to stimulate uterine contractions
■ Dinoprostone and misoprostol may be ordered but are not FDA approved for treatment of uterine atony.
What are some non surgical interventions for postpartum hemorrhage?
Non-surgical interventions such as uterine packing with gauze or uterine tamponade
What is a surgical intervention for postpartum hemorrhage was remark
■ Surgical interventions such as hysterectomy may be indicated when all other treatments have failed to contract the uterus.
What are the second most common causes of primary postpartum hemorrhage?
Lacerations
What are causes of pathological unconjugated hyperbilirubinemia
HEMOLYSIS OF RBCs
Rh/ABO incompatibilities
Bacterial and viral infections
Inherited disorders of RBC/bilirubin
metabolism
Glucose-6-phospate
dehydrogenase deficiency
What are common sites of laceration during childbirth?
cervix, vagina, labia, and perineum.
What are the risk factors of lacerations?
■ Fetal macrosomia
■ Operative vaginal delivery: Use of forceps or vacuum
extraction
■ Precipitous labor and/or birth
What are the assessment findings of a Postpartum hemorrhage from a laceration?
■ A firm uterus that is midline with heavier than normal
bleeding
■ Bleeding is usually a steady stream without clots.
■ Tachycardia
■ Hypotension
What are some nursing actions to take for a woman with lacerations and a postpartum hemorrhage?
■ Monitor vital signs and blood losss
■ Notify the physician or midwife of increased bleeding and firm fundus
When and where do hematomas occur?
Hematomas occur when blood collects within the connective tissues of the vagina or perineal areas related to a vessel that ruptures and continues to bleed
what are some risk factors for hematoma as postpartum hemorrhage?
Episiotomy is the major risk factor
■ Use of forceps
■ Prolonged second stage
what are some assessment findings in a hematoma related to postpartum hemorrhage?
■ Presence of tachycardia and hypo
■ Hematomas in the perineal area present with swelling, discoloration, and tenderness.
severe pain in the vagina/perineal area