High risk pregnancy notes (class 13,

High risk pregnancy

High risk pregnancy

• Condition/s which threaten maternal and/ or fetal health or interferes with normal fetal development, childbirth or transition to parenthood.

• Biophysical, socio-demographic, psychosocial, environmental factors

• Can become high risk at any point on the continuum.

high risk factors

- Preexisting factors that are affected by pregnancy and affect the pregnancy and its outcomes e.g. diabetes, cardiac disease

- Factors that are related to pregnancy only eg.) Gestational HTN

- Factors that have nothing to do with pregnancy e.g. trauma, but have potential to affect it

what are some effects of high risk pregnancy

-Physical effects on mother and/or baby

-Psychological effects

-Social effects

-Spiritual

-Effects on other family members

-May be financial effects

-Effects of long-term hospitalization

psychological effects of high risk pregnancy

-Increased stress \n -Uncertainty about outcomes \n -Disruption of family routines, role changes, child care issues, work disruption etc... \n -May have difficulty establishing relationship with fetus if outcome is questionable

goals of care for a high risk pregnancy

-Reduce the incidence of health problems affecting maternal/ fetal health and pregnancy outcomes by identifying the presence of risk factors and signs and symptoms of complications early.

-Treat ASAP \n -Minimize effects of complications on pregnancy outcome

-Monitor status of pregnancy \n -Emotional support

intimate partner violence / violence during pregnancy

high risk pregnancy

adolescent pregnancy

• Statistics - rate generally decreasing in last few years

• Can lead to physical, psychological, social & economic

  problems for individuals and families

• Social/economic problem for society

• Individual differences

risks of adolescent pregnancy

- Can affect education & career options

- Many don’t seek antenatal and follow-up care

- Often have poor nutritional status; many smoke,

substance abuse

- Insufficient weight gain \n - increased Fe deficiency anemia \n - LBW; increased preterm birth \n -increased Risk of abuse to child especially if abandoned - increased Gestational Hypertension \n - Cephalopelvic Disproportion (CPD)

nursing care for adolescent pregnancy

• Goals - assist girl in experiencing a physically safe and emotionally satisfying pregnancy, promote optimal health for mother and baby

• Educate re: options. Provide support!! Treat with respect Don’t be judgmental

• Need to assess developmental level

• Encourage prenatal care and education

-supports/community resources

after age 35

After age 35, there's a higher risk of pregnancy-related complications that might lead to a C-section delivery. The risk of chromosomal conditions is higher. Babies born to older mothers have a higher risk of certain chromosomal conditions, such as Down syndrome. The risk of pregnancy loss is higher.

multiple pregnancy

-Ideal outcomes – to reach 36-37 weeks of gestation with all fetuses growing and developing normally \n

-Close monitoring (doppler studies, BPP, NST) useful in monitoring status of the pregnancy

-Increased Risk for cord entanglement, fetal compromise, and placental abruption. \n

-Method of childbirth depends on the position of the first fetus.

-Important to monitor subsequent fetus/es after the birth of the first, as well as maternal bleeding and vital signs

cardiovascular disorders during pregnancy

• Normal changes during pregnancy impact woman with pre-existing cardiac disease.

• Normal heart can compensate for increased workload

• Diseased heart is hemodynamically challenged – if not

well tolerated, can lead to cardiac failure during

pregnancy, L&D, or postpartum period

• Consider degree of disability rather than the type of

diagnosis when considering treatment and prognosis during pregnancy

autoimmune disorders

-Disrupt the function of the immune system

-Occur more frequently during reproductive

years \n -Can affect the course of pregnancy or are

detrimental to the fetus \n -Close monitoring before, during and after

pregnancy

what is the presence of gallstones in the bladder

cholelithiasis

cholelithiasis

-Presence of gallstones in the gallbladder.

-Hypothesis during pregnancy: Estrogen causes increased

cholesterol secretion of bile; Progesterone promotes decreased gallbladder motility .

-Increased hormone levels and pressure from uterus interfere with normal circulation and drainage of the gallbladder.

-Most gallstones asymptomatic; may have epigastric (right upper quadrant pain) that radiates to back or shoulders.

-May occur spontaneously, or after a high fat meal.

what is inflammation of the gallbladder

cholecystitis

cholecytitis

-Inflammation of the gallbladder \n -Causes: gallstone obstructs a cystic duct; pressure from

uterus interfere with normal circulation and drainage of the gallbladder. \n -Older pregnant women with several pregnancies and

history of previous attacks. \n -More severe epigastric pain than cholelithiasis.

-Nausea, vomiting and fever may also be present.

treatment for cholecystitis

-Antibiotics, analgesics, IV fluids, bowel rest, and N/G suctioning.

-Surgery should be postponed until the puerperium.

-Recurring may require immediate cholecystectomy – preferably during second trimester, but can be performed anytime during pregnancy.

Antepartal Hemorrhagic Disorders

In pregnancy, increases in plasma volume and RBC’s \n ✔meet metabolic demands of mother & fetus ✔protect against potentially deleterious impairment in venous return \n ✔safeguard the mother against the effects of blood loss at birth

• Maternal blood loss ↓ oxygen carrying capacity to tissues/organs / fetus.

• Any bleeding in pregnancy↑ risk of maternal and/ or fetal morbidity & mortality

bleeding in pregnancy

• Hemorrhage - major cause of death

• Bleeding in early pregnancy (Trimester 1): mostly spontaneous abortion

• Causes of late bleeding (Trimester 2 & 3):

– placenta previa

– abruptio placentae

– abnormal implantation and/or development of placenta

– trauma

what might be happening if someone is bleeding in early pregnancy (tri 1)

spontaneous abortion

what are some causes of bleeding in tri 2 and 3 during pregnancy

-placenta previa

-abruptio placentae

– abnormal implantation and/or development of placenta

– trauma

___________________  is a problem during pregnancy when the placenta completely or partially covers the opening of the uterus (cervix).

placenta previa

__________________ is defined as the premature separation of the placenta from the uterus.

abruptio placentae

a loss of pregnancy before 20 weeks is _________

abortion

types of abortion

-spontaneous

-voluntary (elective, therapeutic )

nursing care for induced/ elective / voluntary abortion

-Confirmation of pregnancy and gestation- bimanual exam/US

- Blood work \n -Pre-abortion counseling \n - Mostly dilatation and curettage and vacuum aspiration

- Nursing support during procedure \n - Recovery 4-5 hours then home \n - RhoGAM to woman who is Rh negative

client teaching for induced/ elective / voluntary abortion

• Expect some cramping, bleeding like heavy period

• Often- prophylactic antibiotics

• NSAIDs for pain relief

• Avoid douches, sex, tampons for about 2 wks

• Next period- 4 to 6 wks

• Contact Dr if temp increases, chills, abdominal pain, tenderness, excessive or

  prolonged bleeding, foul smelling vaginal discharge

• Info re birth control

• Follow up with Dr.

spontaneous abortion (miscarriage)

• Incidence- approximately 10-15% of pregnancies

• Causes - genetic abnormalities, uterine or cervical problems,

  infections, substance abuse, maternal medical conditions (e.g.

diabetes, hypothyroidism)

• Sub groups

- threatened

- inevitable \n - incomplete \n - complete \n - missed \n - recurrent (habitual)

nursing care for threatened abortion

THINK CONCEPTUALLY Bleeding/Infection/Pain

• Assessment of pain & bleeding. May require IV

• Blood work- Type, Rh, Hbg, Hct

• Date of LMP

• Obstetric history

• Vital signs

• Bed rest, nutritious diet, adequate hydration

• Decreased Stress

• Nosex

• hCG levels

• Ultrasound - confirmation

• Emotional support -determine meaning of this

  pregnancy for woman

threatened abortion

When the symptoms indicate a miscarriage is possible, the condition is called a "threatened abortion."

(This refers to a natural event that is not due to a medical or surgical abortion.)

following a spontaneous abortion

• May require dilatation and curettage (D&C)

• Follow up - phone calls

• Referral as necessary

• May have mood swings

• Expect cramping

• Monitor bleeding

• Assess pain

• Eat foods high in iron and protein

• Refer to support groups

• Avoid pregnancy for at least 2 months to allow recovery

• Other advice - see induced abortion

methods of abortion

-Surgical and medical (meds) methods

-Suction curettage or vacuum aspiration

-Dilatation and Curettage

-Misoprostol (Prostaglandins)

-RU 486 (Mifepristone) - ”abortion pill” now available in Canada

-Mifepristone with misoprostol

second trimester abortions

-Dilatation and Evacuation (surgical) \n -Induction of labour with Misoprostal and Oxytocin (medical)

molar pregnancy.

gestational trophoblastic disease

• Monitoring of hCG levels for 12 months

• Risk of Choriocarcinoma

• Avoidance of pregnancy for 12

  months

ectopic pregnancy

• Life-threatening condition

• Products of conception implant anywhere other than the uterus

• Incidence - 1.5% pregnancies

• Sites- most in fallopian tubes, particularly in ampulla, Less common- abdominal cavity, ovary, cervix

• Leading cause of infertility

cuases / risk factors of ectopic pregnancy

(blocked or narrowed fallopian tubes)

• previous pelvic infection,

• history of chlamydia infection,

• previous appendicitis,

• history of infertility

• or cesarean birth,

• age greater than 35,

• smoking

management of ectopic pregnancy

• Non surgical- methotrexate (unruptured) disrupts growth of developing embryo → cessation of pregnancy

• Surgical - Removal by salping__ostomy__. Or If tube is ruptured→laparoscopic salping__ectomy__

ectopic pregnancy

Diagnosis :

• –  Rule out other conditions

• –  Ultrasound – transvaginal, abdominal, laparoscopy

  to dx

• –  If previous positive pregnancy test, repeat hCG

  levels over 48 hours

Treatment:

• Drugs (unruptured)

• Laparoscopic surgery

• Supportive nursing care – gentle upon palpation, may

fear for safety and express concern for future fertility, psychological health with pregnancy termination

safety and express

clinical manifestations of ectopic pregnancy

-positive pregnancy

-vaginal bleeding

-abdominal pain

If rupture occurs → Increased pain from blood in perineum. Typically referred shoulder tip pain caused by internal bleeding irritating the diaphragm

 Can lead to severe hemorrhage and shock

 Cullen’s sign – ecchymotic blueness around umbilicus (ruptured ectopic pregnancy)

 Bladder Pain \n  Dizziness, pallor, and nausea

Placenta and Cord anomalies can also be a significant source of __________ in pregnancy.

bleeding

placenta previa

• Abnormal implantation of the placenta in the Lower uterine segment (LUS) , over or very close to the internal cervical os.

• Classified according to degree to which internal cervical os is covered by placenta:

⮚ Complete placenta previa

⮚ Partial Placenta previa \n ⮚ Marginal placenta previa

⮚ Low lying placenta

complete placenta previa

The placenta is completely covering your cervix, blocking your vagina.

partial placenta previa

The placenta partially covers your cervix.

__________ placenta previa is when The placenta is positioned at the edge of your cervix.

marginal

low lying placenta

out of these placenta previas:

⮚ Complete placenta previa

⮚ Partial Placenta previa \n ⮚ Marginal placenta previa

⮚ Low lying placenta

which 2 are not as risky

⮚ Marginal placenta previa

⮚ Low lying placenta

placenta previa manifestations

usually ==painless, vaginal bleeding, bright red. ==

With stretching and thinning of LUS, there is a disruption in placental blood vessels. Risk of bleeding ↑ as term approaches & effacement & dilatation occur. This disrupts the placental attachment. Uterus isn’t able to contract & stop blood flow. May have several bleeding episodes

▪ Uterus - soft and non tender

-vital signs may be normal because we have 40-45% extra blood during pregnancy.

-fetus may be in abnormal presentation

-blood clotting usually normal

-signs of fetal compromise (hypoxia) if maternal shock or extensive placental detachment

-fetal/neonatal anemia possibly

complications of placenta previa

• Preterm rupture of membranes

• Preterm labour and birth

• Anemia

• Uterine rupture

• Postpartum infection

• Postpartum hemorrhage

• Fetal death

what is B

Marginal placenta previa

placenta previa management

• Management- depends on length of gestation and amount of bleeding:

• Home care possibly if stable, no active bleeding and can get to hospital quickly. Otherwise - hospitalization

• C/S for complete Placenta Previa

• Delivery is necessary if bleeding is sufficient to jeopardize mother or

baby - C/S

• If woman is less than 36 weeks and is not in labour, bleeding has

  stopped – rest and close observation to allow time for fetus to

mature.

• Monitor pads for amt of bleeding

• Bed rest or bed rest with BRP if not

  bleeding; limited activity

• Vitals

• Oxygen if required

• Monitor fetus i.e., electronic fetal monitoring, NST, BPP

• Assess blood loss, symptoms of shock, any contractions?

• IV fluids

• Have blood X matched

• Corticosteroids if < 34/40

• No PV exam

• Psychosocial support

abruptio placentae

• Premature separation of a normally implanted placenta from the uterine wall

• Accounts for significant maternal & fetal morbidity and mortality

• Risk factors : -trauma, smoking, cocain use, multiple pregnancy, too much amnionitic fluid, diabeteies

abruptio placentae

• Various Degrees of placental abruption. May be a Partial abruption or Complete Abruption.

• It also occurs in various places of placental attachment. Therefore, there are several types:

• Marginal (partial: around edges) / Apparent

• Central / Concealed \n • Mixed or combined

clinical manifestations of placental abruption

• Sudden, sharp, and severe onset of abdominal or back pain

• Uterus- firm and board like

• May be visible bleeding (dark red blood or port

  wine stained amniotic fluid) or concealed

• Vital signs

• May have signs of shock (maternal

  hypovolemia)

• Uterine contractility

• ▪  Often impaired clotting

• ▪  *Fetal presentation - usually normal *

• Fetal response depends on amount of

blood loss and extent of uteroplacental insufficiency. Often decreased variability or late/variable decels on FHR

complications of abruptio placentae

• Complications - preterm birth, SGA baby, neuro damage to baby from hypoxia, DIC, PPH, infection

• Management – depends on maternal and fetal status

• Mother may need to be stabilized

• If preterm, try to preserve pregnancy as long as possible. Steroids to accelerate fetal lung maturity if bleeding is stabilized or mild abruption

• If condition deteriorates, cesearean birth.

nursing care for abruptio placentae

• • Close monitoring of mother & fetus

• Observe for shock, bleeding

• Measure abdomen/ fundal

height- accumulation of blood Assess discomfort

• Assess for contractions

• Establish IV access and give IV

  fluids

• Catheter - intake & output

• Monitor fetal status

• Oxygen if fetal distress

• May need corticosteroids

• Psychosocial support

• Abruptio placentae and placenta previa are differentiated by:

• type of bleeding :Bright red (periva); Dark red (abruption)

• uterine tonicity: Soft non tender (pervia); Board like (abruption)

• presence or absence of pain: Sharp sudden pain (abruption); Painless (Previa)

Abruptio placentae or placenta previa?

bright red bleeding

placenta previa

Abruptio placentae or placenta previa?

dark red bleeding

abruptio placenta

Abruptio placentae or placenta previa?

uterine atony: soft non tender

placenta previa

Abruptio placentae or placenta previa?

uterine atony: board like

abruptio placentae

Abruptio placentae or placenta previa?

sharpe sudden pain

abruptio placentea

Abruptio placentae or placenta previa?

painless

placenta previa

management of late pregnancy bleeding requires immediate evaluation

• Care based on: \n > Gestational age \n > Amount of bleeding

> Fetal condition

invasive placentas

placenta impants deeper than normal.

Invasive placenta is the term used to describe the condition when the whole or part of the placenta grows into the uterine wall and fails to detach from it during the delivery.

placenta has to be delivered (usually a c/s). hysterectomy if they can’t get placenta out.

• Three types of invasive placentas:

• Placenta Accreta \n • Placenta Increta \n • Placenta Percreta

placenta accreta

Slight penetration of myometrium

placenta increta

Deep penetration of myometrium

placenta percreta

Perforation of uterus

cord insertion anomalies

• Velamentous cord insertion (Vasa Previa) – fetal vessels running into or coming within close proximity to the internal cervical os

clotting disorders in pregnancy

• Disseminated Intravascular Coagulation (DIC)

-An over activation of the clotting cascade and the fibrinolytic system resulting in depletion of platelets and clotting factors

-Always a secondary diagnosis

-Often triggered by release of large amounts of thromboplastin:-abruptio placentae, retained demised fetus, amniotic fluid embolus, severe pre- eclampsia and sepsis also damage vasculature integrity

S&S of clotting disorders in pregnancy

• unusual spontaneous bleeding ie.) gums or nose \n • petechaie (especially after blood pressure cuff inflation)

• excessive bleeding from puncture sites ie.) IV,

venipuncture site \n • tachycardia and diaphoresis

management of clotting disorders in pregnancy

• correction of underlying cause \n • IV fluids to replace losses, \n • Packed RBC’s to maintain circulation and oxygen delivery

• Fresh frozen plasma to replace clotting factors \n • Administration of platelets

insulin is a growth hormone… so if the baby produces more insulin.. they get ?

big

pre-gestational diabetes

type 1 or 2 diabetes present prior to pregnancy

• Normal pregnancy-diabetogenic state in latter part of second trimester and third trimester-need for glucose increased

.

• Glucose transport to fetus facilitated by diffusion

• Maternal insulin does not cross placenta

• By 10 weeks, fetus secretes own _____ to use Mom’s _____

insuline.

glucose

Trimester 1

• Maternal glucose levels drop below non pregnant values

• Influence of estrogen & progesterone → increased insulin production → increased peripheral glucose utilization. Fetus also using more glucose so leads to decreasing maternal levels

• Also possible N&V and appetite loss

• Increased chance of hypoglycemia

• Decreased need for insulin

trimester 2 & 3

• Hormonal changes→decreased tolerance to glucose

• Increased levels of human placental lactogen, estrogen, progesterone, cortisol, prolactin & insulinase→increase insulin resistance (glucose sparing mechanism ensuring abundant supply of glucose to fetus)

• Placenta begins to manufacture insulinase

• Results in increased need for insulin at beginning of Trimester 2 and increased

  danger of hyperglycemia and ketoacidosis

normal glucose level for someone

4-7

complications of diabetes during L&D

• Labour is a form of exercise and has a glucose lowering effect. In addition, laboring mother is often maintained on an NPO status, further complicating hypoglycemia. May be given IV therapy to maintain normoglycemic state.

• No additional insulin is needed during labour; sufficient glucose should be infused to keep the woman from becoming ketotic from the prolonged period of starvation.

• There is clear evidence that neonatal hypoglycemia is directly related to maternal hyperglycemia during labour

• Birth Trauma from larger than average size newborn

• Higher incidence of failure to progress, Cesarean delivery

diabetes during L&D:

birth trauma from larger than average newborn size

bigger baby.. more risk for tears, dystocia, c section, bigger baby = more risk for post partum hemorrhage

pre-gestational diabetes

• Labour

• Postpartum-abrupt drop in placental hormones, cortisol and

  insulinase

• Should be encouraged to breastfeed. Protective effect

• Substantial decrease in insulin requirements

• Takes 7-10 days to re-establish CHO homeostasis if not

  breastfeeding

• Lactation uses increased glucose so insulin requirements low until weaning

influence of pregnancy on pre-existing diabetes

• May have drastic alteration in insulin requirements

• Insulin requirements may double or quadruple by the end of

  pregnancy

• May be more difficult to control

• May accelerate progress of vascular disease

most womens bodies can compensant for the extra needed insulin during pregnancy. some cant…. so then get ?

gestational diabetes (GDM)

Gestational Diabetes (GDM)

• Carbohydrate intolerance of variable severity with onset or first recognition during pregnancy

• Incidence approximately 3-5% of pregnancies in non-aboriginal women, 8-18% in aboriginal women

• Usually diagnosed after week 20 of gestation

• Fetal nutrient demands increase in later T2 and T3

• Maternal nutrient ingestion also increases→raises blood glucose. At the

  same time, maternal insulin resistance increases. Insulin demands –> Increase 3-fold

• Usually disappears after pregnancy but may develop diabetes later

• Risk factors (obesity, bad eating habits, family hx)

• Many are asymptomatic- detected by glucose testing 24-28 weeks

  gestation

• Treatment- diet mostly, possibly insulin

• Need to teach about S & S of hypo and hyperglycemia

Dx of gestational diabetes

-50 GM Glucose Challenge test given at 24 – 28 weeks pregnancy 1 hr Post Glucose taken

-If < 7.8 mmol/L→Normal value \n

-7.8 – 11 mmol/L→retest with 75 gm Glucose challenge test with fasting PG, 1hrPG, 2hrPG. If

one of the three blood levels meets or exceeds \n (FPG > 5.3 mmol/L; 1hrPG > 10.6; 2 hrPG > 9 mmol/L)→ Gestational Diabetes

-> 11.1 mmol/L →Gestational Diabetes

management of pre-gestational / gestational diabetes

Preconception counselling

Nutrition

Urine testing

Fetal surveillance

Glucose checks

Insulin

Exercise

Lack of maternal glycemic control before conception and in T1 of pregnancy may be responsible for fetal congenital __________

malformations

key point - diabetes

Maternal insulin requirements increase as pregnancy progresses and may double to quadruple by term as a result of insulin resistance, created by placental hormones, insulinase, and cortisol

Key Points - diabetes

• After birth levels decrease dramatically

• Breastfeeding affects insulin needs

• Poor glycemic control before and during pregnancy can lead to maternal complications such as miscarriage, infection and dystocia caused by fetal macrosomia

• Careful glucose monitoring, insulin administration when necessary, and dietary counseling are used to create a normal intrauterine environment for fetal growth and development in pregnancy complicated by diabetes mellitus

• Because GDM is asymptomatic mostly, routine screening during pregnancy is necessary

.

Infant of a mother with diabetes

▪Good glucose/A1C control prior to conception is essential

▪Appearance

-May be $<strong>LGA</strong>$- at risk for injury at delivery \n -May be $<strong>SGA</strong>$due to impaired uterine flow causing compromised placental functioning

an infant of a mother with diabetes will be at risk for ?

poor glucose control post birth

hypoglycemia

• Sustained state of hyperglycemia in pregnancy leads to hyperinsulinism.

• At birth, glucose supply is cut.

• Glucose depleted and leads to hypoglycemia in NB

infant of a mother with diabetes

▪At risk for developing respiratory distress & RDS (hyperinsulinemia in fetus alters surfactant production)

▪Increased risk of congenital abnormalities e.g., CHDs, spinal defects

▪Risk of hypoglycemia, hypocalcemia, hyperbilirubinemia, hypomagnesemia, polycythemia, cardiomyopathy

______________ is the most common medical complication in pregnancy

hypertension (High blood pressure)

pre-existing hypertension is hypertension present before pregnancy or diagnosed before week ___ of gestation

20

gestational hypertension

- Onset of hypertension @@after week 20 @@of pregnancy in a previously normotensive woman

\n - Systolic BP ≥140, diastolic BP ≥90

blood pressure of gestational hypertension

Systolic BP ≥140, diastolic BP ≥90

__________ is hypertension in pregnancy after week 20 + proteinuria ( high levels of protein in your urine)

preeclampsia

high levels of protein in urine indicate ________ damage

kidney