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OB GYNE 4 > 1 AMNIOTIC FLUID > Flashcards

1 AMNIOTIC FLUID Flashcards

1
Q

WHAT DOES AMNIOTIC FLUID PROVIDE FOR FETUS? (6)

A

1) PROTECTION FROM PHYSICAL TRAUMA
2) GROWTH
3) STABLE TEMPERATURE FOR FETUS
4) NORMAL DEVELOPMENT OF BONES AND MUSCLES
5) AIDS IN MATURATION OF LUNGS AND GI TRACT
6) NUTRIENTS

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2
Q

IN THE FIRST TRIMESTER WHAT PRODUCES THE AMNIOTIC FLUID? (5)

A

1) CHORION FRONDOSUM
2) MEMBRANES
3) SKIN
4) GU TRACT
5) LUNGS

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3
Q

IN EARLY PREGNANCY FLUID IS MOSTLY PRODUCED BY THE ?

A

CHORIOAMNIOTIC MEMBRANES

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4
Q

IN THE 2ND AND 3RD TRIMESTER THE AMNIOTIC FLUID IS MOSTLY PRODUCED BY THE?

A

KIDNEYS *

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5
Q

IN THE 2ND AND 3RD TRIMESTER A SMALL AMOUNT OF AMNIOTIC FLUID IS PRODUCED BY THE?

A

LUNGS

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6
Q

HOW IS THE AMNIOTIC FLUID REMOVED?

A

FETUS DRINKING THE FLUID

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7
Q

FLUID GOES THROUGH FETAL GI TRAT AND IS ABSORBED BY THE?

A

BOWEL

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8
Q

WHAT EXCRETES URINE?

A

KIDNEYS

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9
Q

WHERE DOES THE URNIE GET EXCRETED?

A

AMNIOTIC CAVITY

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10
Q

WHAT CAUSES POLYHYDRAMNIOS? (EXCESS)

A

GI
OR
SWALLOWING DEFECTS

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11
Q

WHAT CAUSES OLIGOHYDRAMNIOS? (REDUCED)

A

BILATERAL GU OBSTRUCTION
OR
RENAL AGNESIS

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12
Q

ESTIMATING AMNIOTIC FLUID VOLUME IS?

SUBJECTIVE OR OBJECTIVE?

A

SUBJECTIVE

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13
Q

HOW DO YOU MEAURE THE AMNIOTIC FLUID VOLUME?

A

MAXIMUM VERTICLE POCKET

DEEPEST FREE OF THE UMBILICAL CORD OR FETAL PARTS

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14
Q

WHA IS CONSIDERED POLYHYDRAMNIOS?

A

> 8CM*

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15
Q

HOW IS PROBE SITUATIED?

A

PERPINDICULAR TO FETAL ABDOMEN

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16
Q

WHAT IS AFI?

A

AMNIOTIC FLUID INDEX

LARGEST POCKET IN EACH QUADRANT ADDED TOGETHER

17
Q

WHAT IS NORMAL AFI (SUM OF 4 QUADRANTS)

A

BETWEEN 5-25 CM

18
Q

WHEN IS MAX AMNIOTIC FUID REACHED?

A

22 WEEKS

19
Q

WHEN IS AMNIOTIC FLUID MAINTAINED UNTIL?

A

34 WEEKS

THEN SLOWLY DEMINISHES

20
Q

AT 34 WEEKS WHAT SIZE POCKET IS REQUIRED FOR FETAL BREATHING?

A

1 CM

21
Q

WHAT ARE THE 4 QUADRANTS WE MEASURE?

A

SAG RUQ
SAG RLQ
SAG LLQ
SAG LUQ

22
Q

WHAT IS POLYHYDRAMNIOS?

A

AN EXCESS OF AMNIOTIC FLUID FOR A GIVEN GESTATION OF PREGNANCY

23
Q

THE FETUS FLOATS FREELY IN AMNIOTIC FLUID AT ALL TIMES SHOLUD BE TOUCHING UTERUS ON AT LEAST _____ OF THE UTERUS

A

2 SIDES

24
Q

WHAT AFI IS SUGGESTIVE OF POLYHYDRAMNIOS?

A

> 25 CM AFI *

25
Q

WHAT IS THE MOST COMMON CAUSE OF POLYHYDRAMNIOS?

A

DIABETES MELLITUS

26
Q

WHAT ARE THE OTHER CAUSES OF POLYHYDRAMNIOS?

A 
CNS
HIGH GI OBSTRUCTION ***. (DECREASING IN FETUS SWALLOWING IE ESOPHAGEAL ATRESIA OR DUODENAL ATRESIA, DIAPHRAGMATIC HERNIA)
HYDROPS
TWIN TO TWIN TRANSFUSION SYNDROME
MUSCULOSKELETAL DYSPLASION
IDOPATHIC
27
Q

POLYHYDRAMNIOS MAY CAUSE… (4)

A

1) MATERNAL ABDOMINAL PAIN
2) MATERNAL SOB
3) PROM
4) PRETERM DELIVERY

28
Q

WHAT IS PERFORMED TO REDUCED THE FLUID UNTIL THE LARGEST POKET IS < 8CM ?

A

AMNIOCENTESIS

29
Q

COMPLICATIONS OF AMNIOCENTESIS (3)

A

1) PROM
2) PRETERM DELIVERY
3) INFECTION (AMNIONITIS)

30
Q

WHAT IS THE DRUG THAT DECREASES FETAL URINE OUTPUT

A

INDOMETHACIN *

PROSTAGLANDIN INHIBITOR

31
Q

COMPLICATION OF INDOMETHACIN?

A

PREMATURE CLOSURE OF DUCTUS ARTERIOSUS

only in early pregnancy

32
Q

WHAT PERCENT OF CASES OF POLY ARE ASSOCIATED WITH FETAL ABNORMALITY ?

A

20%

33
Q

WHAT IS OLIGOHYDRAMNIOS?

A

REDUCED OR ABSENT AMNIOTIC FLUID VOLUME FOR A GIVEN GESTATIONAL AGE
< 5CM

34
Q

OLIGO IS WHEN LARGEST POCKET IS LESS THAN ?

A

2 X 2 CM

35
Q

WHEN IS OLIGOHYDRAMNIOS CALCULATED ?

A

5.5 - 9 WEEKS

36
Q

FORMULA FOR CALCULATING OLIGO IN FIRST TRIMESTER?

A

MSD (mm) - CRL (mm) = < 5cm

37
Q

CAUSES OF OLIGOHYDRAMNIOS? (7)

A

1) PROM (amniotic membrane rupture)
2) IUGR
3) RENAL ANOMALY (polycystic kidneys, bilat agenesis, or bladder outflow obstruction)
4) POST DATES
5) ABRUPTION
6) TWIN TO TWIN TRANSFUSION (DONOR TWIN)
7) I DIOPATHIC

38
Q

OLIGOHYDRAMNIOS MAY CAUSE (3)

A

1) LIMB ANOMALIES (club feet)
2) PULMONARY HYPOPLASIA
3) RESTRICTED GROWTH

OB GYNE 4 (11 decks)

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