Late Pregnancy Bleeding 6 Flashcards

1
Q

Late pregnancy bleeding is

A

vaginal bleeding that occurs after 20 weeks’ gestation. Prevalence is <5%, but when it does occur, prematurity and perinatal mortality quadruple.

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2
Q

Cervical causes of late pregnancy bleeding include

A

erosion, polyps, and, rarely, carcinoma

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3
Q

Vaginal causes of late pregnancy bleeding include

A

varicosities and lacerations

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4
Q

Placental causes of late pregnancy bleeding include

A

abruptio placentae, placenta previa, and vasa previa

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5
Q

Prevalence is

A

<5%, but when it does occur, prematurity and perinatal mortality quadruple.

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6
Q

The most common cause of obstetric DIC

A

Abruptio placenta

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7
Q

Initial Investigation of any late pregnancy bleeding

A

Complete blood count
disseminated intravascular coagulation (DIC) workup (platelets, prothrombin time, partial thromboplastin time, fibrinogen, D-dimer),
type and cross-match,
and sonogram for placental location.

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8
Q

Initial management of late pregnancy bleeding

A

Start an IV line with a large-bore needle; if maternal vital signs are unstable → run isotonic fluids and
place a urinary catheter to monitor urine output.

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9
Q

A normally implanted placenta (not in the lower uterine segment) separates from the uterine wall
before delivery of the fetus.

A

Abruptio placenta

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10
Q

the retroplacental hematoma remains within the uterus.

A

bleeding remains concealed or interna

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11
Q

bleeding remains concealed or interna

A

the retroplacental hematoma remains within the uterus .

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12
Q

Risk Factors of Abruptio placentae is seen more commonly with

A

HTN, previous abruption placenta, maternal blunt trauma
Smoking, cocaine abuse.

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13
Q

Is the most common cause of painful late-trimester bleeding, occurring in 1% of pregnancies at term.

A

Abruption placenta

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14
Q

Diagnosis of abruption placenta

A

This is based on the presence of painful late-trimester vaginal bleeding with a normal fundal or lateral
uterine wall placental implantation not over the lower uterine segment.

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15
Q

Crystalloid such as

A

Saline or lactated Ringer ‘ solution

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16
Q

Crystalloid are given as a first choice for Conservative in-hospital observation management of late pregnancy bleeding for

A

increase blood volume and help stabilize the patient’s circulation.

17
Q

is performed if mother and fetus are stable and remote from term, bleeding is minimal or decreasing, and contractions are subsiding.

A

Conservative in-hospital observation

18
Q

couvelaire uterus

A

Is a complication of abruption placenta , in which cause entering of blood in the myometrium , and thus this accumulation will cause bruised uterus .

19
Q

refers to blood extravasating between the myometrial fibers, appearing like bruises on the serosal surface

A

Couvelaire uterus

20
Q

when the placenta is implanted in the lower uterine segment.

A

Placenta previa

21
Q

painless late-trimester vaginal bleeding associated with

A

Placenta previa

22
Q

Placenta previa is seen more commonly with

A

previous placenta previa, multiparity, and multiple gestation (increase placental surface area), advance maternal age . And increase Caesarian delivery rates will increase possibility of placenta previa deuce to scares and change of vasculity .

23
Q

presence of painless late-trimester vaginal bleeding with an obstetric ultrasound showing placental implantation over the lower uterine segment.

A

In placenta previa

24
Q

Complications of placenta previa

A

Caesarian hysterectomy , hypovolemia will cause Sheehan syndrome or acute tubal necrosis

25
Q
  • If these fetal vessels rupture the bleeding is from the fetoplacental circulation, and fetal exsanguination will rapidly occur, leading to fetal death.
A

Vasa previa

26
Q

▪ Clinical Presentation of vasa previa

A

The classic triad is rupture of membranes and painless vaginal bleeding, followed by fetal bradycardia.

27
Q

Management of vasa previa

A

Immediate cesarean delivery of the fetus is essential, or the fetus will die from hypovolemia.

28
Q

is complete separation of the wall of the pregnant uterus with or without expulsion of
the fetus that endangers the life of the mother or the fetus, or both.

A

Uterine rapture

29
Q

Most uterine ruptures occur in patients with a

A

history of uterine surgery ( myomectomy) as the inelastic scar may not be able to withstand labor contractions.

30
Q

Uterine accrue during

A

Labor, after labor or both

31
Q

The most common findings of uterine rapture

A

are painful vaginal bleeding, loss of electronic fetal heart rate signal due to
disruption of the maternal-placental circulation, and loss of station of fetal head. Rupture may occur
both before labor as well as during labor