Pregnancy eruptions Flashcards

1
Q

T/F Pempigoid gestationis is a rare, pruitic, vesiculobullous eruption that typically develops mid pregnancy

A

F- late pregnancy of immediate postpartum period. Although later says can develop during any trimester

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2
Q

T/F Pempigoid gestationis-there is no risk to the neonate

A

F- increased risk of prematurity and small for gestational age neonates, risk correlates with disease severity.

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3
Q

T/F Pempigoid gestationis The histology is exactly the same is bullous pemphigoid- IgG1 autoantibodies directed against a transmembrane hemidesmosomal protein (BP180 BPAG2, collagen XVII)

A

True

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4
Q

T/F Pempigoid gestationis usually does not reoccur in subsequent pregnancies

A

T

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5
Q

T/F Pempigoid gestationis Risk 1:1700- 1:50,000 pregnancies

A

T

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6
Q

T/F Pempigoid gestationis Genes HLA DR3 and DR4

A

T

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7
Q

T/F Pempigoid gestationis Patients who experience pemphigoid getationis are at increased risk of Hashimoto disease

A

False Graves

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8
Q

T/F Pempigoid gestationis Starts in abdo typically around umbilical area

A

T (starts abdo)

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9
Q

T/F Pemphigoid gestationis mucous membrane involvemen

A

F (spares mucous membrane)

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10
Q

T/F Pemphigoid gestationis- skipped pregnancies have occured in 10% women

A

F 5-8%

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11
Q

. T/F Pempigoid gestationis 10% neonates blisters T mild and transient in upto 10%

A

T

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12
Q

. T/F Intrahepatic cholestasis of pregnancy has no cutaneou involvement to neonate

A

T

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13
Q

T/F Atopic eruption of pregnancy commonly reoccurs

A

T due to atopic diathesis

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14
Q

T/F Intrahepatic cholestasis of pregnancy frequently reoccurs in 80% pregnancies and can be triggered by the OCP

A

F 45-70%

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15
Q

T/F Intrahepatic cholestasis of pregnancy has the worst prognosis for the neonate

A

T increased risk of premature labour 20-60%, intrapartal fetal distress 20-30% and stillbirths 1-2%

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16
Q

T/F Pemphigoid gestationis- the risk to the neonate correlates with disease severity eg early onset, bullae rather than use of corticosteroids

A

T

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17
Q

T/F EOs are the classic histological finding of pemphigoid gestationis

A

T

18
Q

T/F Pemphigoid gestationis Linear deposition of C3 along BMZ is observed in 100% patients, and linear IgG is seen in 30%

A

T

19
Q

T/F Prednisolone is largely inactivated in the placenta

A

T (mother:fetus=10:1)

20
Q

T/F Chlopherinamine, Diphenhydramine, Clemastine, Dimethindene preferred antihistamines first trimester

A

T

21
Q

T/F If non sedating required, Loratadine is first choice and Cetrizine is second choice

A

T

22
Q

T/F Polymorphic eruption of pregnancy. Urticarial papules and plaques usually first appear in the striae during the first part of the third trimester

A

F latter part of 3rd trimester immediately post-partum

23
Q

T/F PEP Development of polymorphous features (vesicles, erythema, target and eczematous) correlate with disease progression

A

T

24
Q

T/F PEP usually reoccurs

A

F does not usually reoccur, usually first pregnancy, multi-parous or if new partner

25
Q

T/F PEP Laboratory tests are norma

A

T

26
Q

T/F PEP Incidence is about 1 in 500 deliveries

A

F 1 in 160

27
Q

. T/F PEP cause unknown, perhaps due to increased maternal weight gain

A

T

28
Q

T/F PEP rapid weight gain may lead to damage of connective tissue and illicit an allergic-type reaction

A

T

29
Q

T/F PEP erruption typically spreads over a matter of weeks, generally sparing the face, palms and soles

A

F matter of days

30
Q

T/F PEP erruption like pemphigoid gestationis, commonly presents periumbilical

A

T

31
Q

T/F IHC Pregnancy reoccurs in 45-70% subsequent pregnancies

A

T

32
Q

T/F IHC Pregnancy + family history in 60% patients

A

F 50%

33
Q

T/F IHC Pregnancy key element is reduced excretion of bile acids

A

T

34
Q

T/F IHC Pregnancy may be due to mutation in ABCB4 gene

A

T

35
Q

T/F IHC Pregnancy generally starts around the umbilicus

A

F palms and soles

36
Q

T/F IHC Pregnancy Jaundice risk 55%

A

F 10%

37
Q

T/F IHC Pregnancy total serum bile acids >11umol/L in contrast to normal 0-6

A

T

38
Q

T/F IHC Pregnancy in 1 study 46% patients HCV RNA-positive developed condition

A

T

39
Q

T/F IHC Pregnancy treatment is oral ursedeoxycholic acid 15mg/kg daily or 1g daily

A

T

40
Q

T/F Atopic eruption of pregnancy is the most common pruitic disorder of pregnancy

A

T 1 in 5 to 1 in 20

41
Q

T/F Atopic eruption of pregnancy appears in third trimester

A

F 75% before third trimester