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29 May 2023.

 

17

EMQ. Hepatitis D

18

EMQ. Pertussis

19

EMQ. Brexanolone

20

EMQ. Turner syndrome

21

EMQ. The MAGPIE trial 

 

17.         Hepatitis D.

Abbreviations:

HBsAg:      hepatitis B surface antigen

HBsAb:      antibody to hepatitis B surface antigen

HBV:          hepatitis B virus

HCsAg:      hepatitis C surface antigen

HDV:          hepatitis D virus; hepatitis delta virus

HEsAg:      hepatitis E surface antigen

Question 1.             Which, if any, of the following statements are true in relation to HDV? This is not a true EMQ as there may be >1 correct answer.

Option list.

A

HDV is a large DNA virus

B

HDV is a defective virus

C

HDV gains entry to human cells via the HDV receptor

D

HDV gains entry to human cells by donning a disguise and using the HBV receptor

E

HDV only flourishes when HBsAb is present

F

HDV only flourishes when HBsAg is present

G

Coi   coinfection is when HDV and another viral infection are present at the same time

H

Susu superinfection is when HDV is present in abnormally high numbers

I

HDV infection is the least serious of the viral hepatitides in relation to pregnancy

J

HDV treatment was revolutionised by analysis of the benefits of drinking bleach as suggested by Donald Trump

K

the   WHO has recommended that those who follow medical advice from Donald trump should be categorised as ‘having the DTs’.

L

HDV needs the presence of HBsAg to be a significant pathogen

M

HDV needs the presence of HCsAg to be a significant pathogen

N

HDV needs the presence of HEsAg to be a significant pathogen

O

ppe  pegylated interferon alpha is highly effective as treatment

P

m     mother-to-child transmission is mainly via the placenta

Q

         WHO recommends tenofovir prophylaxis from 28 weeks in pregnancy in HDV infected women

R

the   infected neonate should be given HDV vaccine

 

18.         Pertussis.

Abbreviations.

JCVI:      Joint Committee on Vaccination and Immunisation .

PIPP:     pertussis immunisation programme for pregnancy.

Question  1.      Why is pertussis of current concern in obstetrics?

A

Research has linked pertussis in the 1st. trimester to risk of congenital heart disease

B

A mini-epidemic since 2011 has caused deaths of mothers & of babies < 3 months

C

A mini-epidemic since 2011 has caused deaths of babies < 3 months

D

The infecting organism has become increasingly drug-resistant

E

The infecting organism has become increasingly virulent

Question  2.      Which organism causes whooping cough?

A

Bordella pertussis

B

Bacteroides pertussis

C

Rotavirus whoopoe

D

Respiratory syncytiovirus pertussis

E

None of the above

Question  3.           Which, if any, of the following statements are true about the organism what causes whooping cough? This is not a true SBA as I have condensed several questions into one to save space and there may be more than one correct answer.

A

the organism is aerobic

B

the organism is anaerobic

C

the organism is capsulated

D

the organism is flagellate

E

the organism is an obligate intra-cellular parasite

F

the organism is a Gram -ve diplococcus

G

the organism is a Gram +ve diplococcus

H

the organism requires special transport media

I

no one is going to ask me any of this stuff


Question  4.           Which of the following statements is true?

A

Pertussis is no longer a significant threat to infants

B

Pertussis remains a significant threat to infants

C

The risk of death from pertussis is eliminated by timely antibiotic therapy

D

the risk of death from pertussis is eliminated by timely antiviral therapy

E

None of the above

Question  5.      Which of the following statements is true?

A

Pertussis is not a notifiable disease

B

Pertussis is a notifiable disease

C

Pertussis is not a notifiable disease, but cases should be reported to the local bacteriologist

D

Pertussis is not a notifiable disease, but cases should be subject to audit

Question  6.      What is the main mode of spread of the organism that causes pertussis?

A

contact with contaminated surfaces

B

contaminated food

C

contaminated water

D

respiratory droplets

E

none of the above

Question  7.           What is the main reservoir of the organism that causes pertussis?

A

budgerigars

B

cats

C

dogs

D

humans

E

pigeons

F

pigs

G

none of the above

Question  8.      What is the epidemiology of pertussis?

A

the condition is endemic

B

the condition is endemic with mini-epidemics every 3-5 years

C

the condition is endemic with mini-epidemics most years in the winter months

D

the condition is epidemic, with outbreaks at roughly three-year intervals

E

the condition is epidemic, with outbreaks at unpredictable intervals

Question  9.           What is the incubation period for pertussis?

A

3-6     days

B

7-10   days

C

11-14 days

D

15-18 days

E

none of the above.

Question  10.        What is the duration of infectivity of someone with pertussis?

A

2 days from exposure → 5 days after onset of paroxysms of coughing

B

3 days from exposure → 10 days after onset of paroxysms of coughing

C

4 days from exposure → 14 days after onset of paroxysms of coughing

D

6 days from exposure → 21 days after onset of paroxysms of coughing

E

none of the above

Question  11.        What % of non-immune, close contacts of pertussis will develop the disease?

A

50%

B

60%

C

70%

D

80%

E

90%

Question  12.        Which of the following best describe the DOH’s advice about pertussis? This is not a true SBA as there may be > 1 connect answer.

A

The DOH advises that all pregnant women be immunised to maternal death rates.

B

The DOH advises that all pregnant women be immunised to deaths in babies < 3 months.

C

The DOH advises that all babies be immunised at birth.

D

The DOH advised that “Boostrix- IPV should replace “Repevax” from July 2014.

E

The DOH advises that immunisation of pregnant women be continued permanently

Question  13.        Which, if any, of the following statements is true in relation to average annual number of deaths due to pertussis in the years before routine child immunisation was introduced?

A

the number was 10,000

B

the number was    5,000

C

the number was    4,000

D

the number was    3,500

E

the number was    1,000

Question  14.  Which, if any, of the following statements are true in relation to pertussis vaccine.

A

Boostrix- IPV” is a vaccine for pertussis only

B

“Repevax” is a vaccine for pertussis only

C

Boostrix- IPV” & “Repevax” are live, attenuated vaccines

D

Boostrix- IPV” & “Repevax” act against diphtheria, tetanus and polio as well as pertussis

E

Boostrix- IPV” & “Repevax” are acellular

Question  15.        Which, if any, of the following statements are true in relation to the JCVI’s advice of the best time to administer pertussis vaccine in pregnancy?

A

20 - 24 weeks

B

25- 28 weeks

C

28 - 32 weeks

D

28 - 34 weeks

E

none of the above

Question  16.        A woman has suspected pertussis in early pregnancy. Should she still be offered vaccination?

A

Yes

B

No

C

I don’t know

D

I don’t know

E

I hate this subject now

Question  17.        A pregnant woman misses out on vaccination as part of the PIPP. Should vaccination still be offered in the puerperium?

A

Yes

B

No

C

I don’t know

D

I don’t know

E

I hate this subject now

 

19.         Brexanolone.

Abbreviations.

GABAA: γ-aminobutyric acid type A.

Scenario 1.    Which, if any, of the following statements are true?

Option list.

A

Brexanolone it is a water soluble form of allopregnanolone

B

allopregnanolone is an oestrogen metabolite and levels mirror those of oestrogen

C

allopregnanolone is a potent modulator of GABAA receptors in the brain

D

brexanolone is effective in the treatment of postpartum depression

E

brexanolone is effective in stimulating FSH release

F

brexanolone is effective in suppressing FSH release

G

brexanolone is administered orally

H

brexanolone is licensed for use in the UK

 

20.         Turner syndrome.

This is supposed to be an EMQ, but some of the questions are MCQs with “True” and “False” answers. But it includes everything I think you might be asked about Turner’s.

Abbreviations.

DDH

developmental dysplasia of the hip

Option list 1 is for question 2, option list 2 is for all the others.

Option list 1.

  1.  

1 in   500

  1.  

1 in 1,000

  1.  

1 in 1,500

  1.  

1 in 2,000

  1.  

1 in 2,500

  1.  

1 in 3,000

  1.  

1 in 10,000

  1.  

1 in 50,000

Option list 2.

  1.  

0%

  1.  

0.1%

  1.  

1 %

  1.  

2%

  1.  

5%

  1.  

10%

  1.  

15%

  1.  

20%

  1.  

30%

  1.  

40%

  1.  

50%

  1.  

60%

  1.  

70%

  1.  

80%

  1.  

90%

  1.  

> 90%

  1.  

Most common

  1.  

2nd. most common

  1.  

True

  1.  

False

  1.  

Answer not on this option list.

 

Questions.

1.         TS is due to 45XO.                                                                                                            True /False

2.         What is the incidence of TS?                                                                                          

3.         The incidence of TS rises with maternal age?             .                                                True /False

4.         Most cases of TS are due to loss of a paternal chromosome.                                  True /False

5.         How common is monosomy X in TS?                           

6.         How common is monosomy Y in TS?                           

7.         What % of miscarriages are due to TS?                      

8.         What % of TS pregnancies miscarry?                          

9.         ↑ NT is a feature of TS                                                                                                     True /False

10.     ↑ NT is more common in foetuses with congenital heart disease                         True /False

11.     Low birth weight is a feature of TS.                                                                              True /False.

12.     If TS is suspected, but the neonate’s karyotype from blood testing is normal, the diagnosis is Noonan’s syndrome.                                                                                                        True /False.

13.     Neonates with TS are at normal risk of DDH.                                                              True /False

14.     Immune hydrops is more common in TS.                                                                     True /False

15.     Cystic hygroma is more common in TS.                                                                        True /False

16.     What is the approximate risk of gonadal malignancy if there is XY mosaicism in TS?   

17.     How common is webbing of the neck in TS?             

18.     How common is a low occipital hairline in TS?                        

19.     How common is congenital heart disease in TS?      

20.     Dissecting aortic aneurysm is more common in TS.                                                   True /False

21.     How common is lymphoedema in TS?                        

22.     How common is kidney disease in TS?                        

23.     Short stature in TS has been linked to the TS gene.                                                   True /False

24.     What % of adolescents with TS have scoliosis.          .

25.     Inverted nipples are more common in TS.                                                                   True /False

26.     1ry. amenorrhoea occurs in all cases.                                                                           True /False

27.     Adrenarche occurs at a normal time.                                                                            True /False

28.     Cubitus valgus is more common in TS.                                                                          True /False

29.     Cleft palate if a feature of TS.                                                                                         True /False

30.     Micrognathia is a feature of TS.                                                                                     True /False

31.     Abnormalities of teeth and nails are more common in TS.                                      True /False

32.     Otitis media is more common in TS.                                                                                            True /False

33.     Intelligence is usually lower in TS, especially verbal skills.                                       True /False

34.     Women with TS have higher mortality rates than other women.                           True /False

35.     Oestrogen should be started on diagnosis to promote bone growth.                     True /False

36.     Oestrogen-only HRT is appropriate for bone protection.                                         True /False

37.     Women with TS have an risk of hypertension.                                                      True /False

38.     Women with TS have an risk of coeliac disease.                                                    True /False

39.     Women with TS have an increased risk of Crohn’s disease and ulcerative colitis.    True /False

40.     Women with TS have an ↑ risk of diabetes                                                                True /False

41.     Women with TS have an ↑ risk of hyperthyroidism. True /False                             True /False

42.     Women with TS have an ↑ risk of deafness.             .                                                True /False

43.     Women with TS have an ↑ risk of osteoporosis.                                                       True /False

44.     Women with TS have similar rates of red-green colour blindness to men.                         True /False

45.     Women with TS have a normal incidence of ptosis.                                                   True /False

46.     Women with TS cannot have children.                                                                         True /False

47.     The “short stature homeobox” (SHOX) gene has been implicated in TS.                    True /False

TOG questions from Mascarenhas et al: “Routes to parenthood for women with Ts”.

TOG. 2019. Volume 21, Issue 1; P 43-50.

Mark as True or False.

With regard to the epidemiology of Turner syndrome (TS)

1.     it is the second most common chromosomal aneuploidy in humans.

2.     its incidence increases with increasing maternal age

3.     approximately 1 in 100 affected fetuses are born alive

With regard to the clinical features of TS

4.     most affected women have spontaneous menarche

5.     those presenting with 1ry. amenorrhea are likely to have suboptimal uterine development

Concerning the pathogenesis of TS

6.     there is accelerated atresia of primordial follicles in the ovary

7.     those who have spontaneous menarche are likely to be mosaic

8.     serum AMH levels do not correlate with karyotype.

9.     estrogen replacement should be started at 15 years of age

10.   estrogen needs to be started at half the normal adult dose

11.   when childbearing is complete, it is advisable to stop HRT.

Regarding pregnancy in women with TS,

12.   the most dramatic risk during pregnancy is aortic dissection

13.   the risk of maternal mortality is around 2%

14.   a history of aortic dissection is a definite contraindication to pregnancy

Concerning fertility in women with TS

15.   approximately 8% conceive naturally

16.   there is an increased risk of miscarriage

With regard to assisted reproductive technology in women with TS

17.   in gestational surrogacy, the surrogate is genetically unrelated to the baby.

18.   there are reliable data on outcomes after oocyte freezing and embryo freezing

19.   ovarian tissue freezing is an option for fertility preservation, even before the onset of puberty

20.   preserved embryos are allowed to be used for treatment even if there is a relationship breakdown and the male partner withdraws consent for the use of embryos created using his sperm

 

21.         The MAGPIE trial .

Question 2.   Which, if any, of the following is true of the Magpie trial?

Option list.

A

it compared MgSO4 with placebo in the management of eclampsia / severe PET

B

it compared MgSO4 with lytic cocktail in the management of eclampsia / severe PET

C

it compared MgSO4 with phenytoin in the management of eclampsia / severe PET

D

it compared MgSO4 with alcohol in the management of threatened premature labour

E

it compared MgSO4 with atosiban in the management of threatened premature labour

F

it compared MgSO4 with ritodrine in the management of threatened premature labour

G

it compared MgSO4 with dexamethasone in the prevention of cerebral palsy due to extreme prematurity

H

it compared MgSO4 with placebo in the prevention of cerebral palsy due to extreme prematurity

I

none of the above

Question 3.   Which if any of the following are true of the Magpie trial?

Option list.

A

it involved ~ 1,000 women

B

it involved ~ 10,000 women

C

it involved ~ 20,000 women

C

it involved > 20,000 women

D

it involved ~ 30 hospitals

E

it involved ~ 50 hospitals

F

it involved ~ 80 hospitals

G

it involved > 150 hospitals

H

it involved 5 countries

I

it involved 10 countries

J

it involved 20 countries

K

it involved 30 countries

L

it involved 50 countries

M

it involved >50 countries

Question 4.   Which if any of the following are true?

Option list.

A

almost 50% of the women were in Africa

B

almost 50% of the women were in America

C

almost 50% of the women were in Asia

D

almost 50% of the women were in Australia / New Zealand

E

almost 50% of the women were in Europe

Question 5.   Which, if any, of the following is true of the Magpie trial?

Option list.

A

cerebral palsy rates at 2 years were ↓ by the use of MgSO4 in babies born < 34 weeks

B

cerebral palsy rates at 2 years were unchanged  by the use of MgSO4 in babies born < 34 week

C

eclampsia rates were reduced by about half by the use of MgSO4

D

eclampsia rates were reduced by about half by the use of MgSO4 but only in underdeveloped countries

E

maternal mortality was significantly ↓ by the use of MgSO4

F

maternal mortality was significantly ↓ by the use of MgSO4, but only in underdeveloped countries

G

premature delivery was significantly ↓ by the use of MgSO4

H

perinatal mortality from prematurity was significantly ↓ by the use of MgSO4

 

 

 


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