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N113 Placenta
N113 - Placental/Bleeding problems
Question | Answer |
---|---|
Placenta previa | Improperly implanted placenta in lower uterine segment. Can cause painless bleeding. |
Low placenta previa | Does not cover the cervical opening |
Partial placenta previa | Partially covers the cervical opening |
Complete placenta previa | Completely covers cervical opening. |
Placenta previa cautions | No vaginal exams, may cause tearing. Bed rest, monitor blood loss-pad count, VS & signs of shock, monitor fetal status, lab values |
Placenta previa management | Depends on type of previa, condition of mother & fetus, amount of bleeding, # of weeks gestation |
Abruptio placenta | Emergency situation,usually painful. Premature separation of placenta, can cause hemorrhage |
Complete abruptio | Almost total separation, massive vaginal bleeding, fetal mortality almost 100%. |
Abruptio signs & symptoms | Painful, sudden bleeding. S/S of shock - increased BP, decreased pulse. Hard uterus, if bleeding is concealed. |
Abruptio risks | Maternal - death, but uncommon, DIC, renal failure Fetal death from lack of O2. |
Abruptio treatment | C-section, hydration, transfusion may be necessary, hysterectomy may be needed. |
Couvelaire uterus | Reduced circulation to uterus, uterus turns blue and will not contract after birth |
Hydatidiform mole | Molar pregnancy - Chorionic villi of placenta become edematous & fluid-filled grape like clusters. |
Ruptured uterus | Tearing of uterus, rupture of weakened area - old scar. Risk related to VBAC. Can occur during pregnancy or during labor |
Complete rupture | Through the 3 muscular layers |
Incomplete rupture | Tear through endometrium & myometrium |
Rupture cause | Weakened c-section scar, obstetric trauma - manipulation of fetus, mismanagement of oxytocin, obstructed labor - CPD, congenital or acquired uterine defects, external trauma, VBAC |
Signs & symptoms of rupture | HEMORRHAGE - resulting in shock Infection - peritonitis - complication PAIN Change in fetal station - fetus rising up in the abdomen, change in abdominal contour, abrupt stop of contractions, fetal distress |
Rupture & fetal distress | With complete rupture, fetus is forced into abdomen and can die quickly - depends on where the placenta location & where rupture occurs |
Rupture treatment | C-section, repair if small rupture, hysterectomy if large rupture. |
Rh Factor | Rh- mom with Rh+ fetus If father is Rh-, children will be Rh-. |
Rh screening & management | Indirect Coombs test - done on maternal blood, measures antibodies |
Direct coombs | Done on infant after birth from cord blood |
RhoGAM | Given 72 postpartum to prevent sensitization. Also given after amniocentesis, abortion and routinely during prenatal care at 28 & 34 weeks to Rh negative women - preventative measure. |
Abortion | Termination of pregnancy prior to 20 weeks. Either spontaneous or elective. |
Abortion patho | If embryo dies, this leads to drop in hcG and progesterone during 1st trimester. |
Threatened abortion | Unexplained bleeding, cramping & backache. Cervix is closed, partial or complete expulsion may occur |
Imminent abortion | Bleeding & cramping, cervical dilation, membranes may rupture, expulsion WILL occur. |
Incomplete abortion | Part of conception retained, most often placenta. Cervix is dilated. May require d & c. |
Missed abortion | Fetus dies but is not expelled. Uterine growth ceases, breast changes regress, brownish vaginal discharge. |
Habitual abortion | 3 or more consecutive abortions |
Treatment during impending loss | Monitor for hemorrhage - vitals, pallor, clammy skin, restlessness. If greater than 12 weeks, |
Distinguish spotting from abortions | Cramping usually present if abortion |
Ectopic pregnancy | Implantation of blastocyst in site other than uterus |
Ectopic implantation sites | Fallopian tube, ovary, peritoneal cavity, cervix, uterine cornua |
Ectopic symptoms | S&S of early pregnancy, hcG found in blood, may have spontaneous abortion. As embryo grows, pain begins. |
Ectopic warning signs | Sharp, one sided pain, may radiate. Syncope, referred shoulder pain, internal hemorrhage from ruptured tube. |
Ectopic treatment | Early identification is key. Symptoms can be similar to appendicitis, UTI or ovarian cyst. |