Practice MCQs (Acquire) Flashcards
Which of the following is most correct concerning bone mass?
Select one:
a.
Bone mass peaks in most women before 25 years of age.
b.
The accelerated loss in bone mass begins after the age of 40 years.
c.
Bone mass is approximately 65% cortical and 35% trabecular bone.
d.
A 70-year-old woman, not on hormone therapy, would lose approximately 2% of bone mass per year.
A - Bone mass peaks in most women before 25 years of age.
A 13-year-old patient has had very heavy menstrual bleeding for the past seven days. Menarche was at age 12 and this is the patient’s fourth menses. The last three menstrual cycles have varied between 31 days and 33 days, but each menses has become progressively heavier. The patient has a negative pregnancy test and is not taking any medication. Coagulation studies are normal. Ultrasound reveals a normal sized anteverted uterus. Her haematocrit is 25% and her haemoglobin is 85 g/L.
What is the most appropriate next step in management?
Select one:
a.
Intravenous oestrogen therapy
b.
Combined oral contraceptive therapy
c.
Cyclical progestogen therapy
d.
Dilatation and curettage (D&C)
B - combined oral contraceptive
- can use POP if contraindications
A woman G1P0 presents at 34 weeks gestation with a 2-day history of vomiting, including coffee-ground-like material, and upper abdominal pain. Urine contains a trace of protein. Investigations include:
· haemoglobin 106g/L
· white cell count 30x109/L
· platelets 155x109/L
· uric acid 450µmol/L (normal 135-395µmol/L)
· total bilirubin 25µmol/L (normal 1-20µmol/L)
· alkaline phosphatase 180U/L (normal 125 - 250U/L)
· aspartate transaminase 800U/L (normal 0-45U/L)
· creatinine 100µmol/L (normal 40-80µmol/L)
· blood glucose 1.8mmol/L
What is the most likely diagnosis?
Select one:
a.
Cholestasis of pregnancy
b.
Acute fatty liver of pregnancy
c.
Hepatitis
d.
Cholecystitis
B - Acute fatty liver
Which organism is responsible for Donovanosis?
Select one:
a.
Gardnerella vaginalis
b.
Corynebacterium donovaniae
c.
Klebsiella granulomatis
d.
Haemophilus ducreyi
C - Klebsiella granulomatis
Which of the following is LEAST true of HIV?
Select one:
a.
With all available initiatives, the incidence of mother-to-child transmission of HIV should be reduced to approximately 5%.
b.
Antiviral chemotherapy lowers the risk of mother-to-child transmission of HIV to approximately one-third of the risk without chemotherapy.
c.
High viral load (>10,000 copies/mL, low CD4 count (<400 x 106) and more than 4 hours ruptured membranes all double the risk of mother-to-child transmission of HIV.
d.
Opportunistic infections commonly develop when the CD4 count falls below 200 x 106 per litre.
Answer is A
A - Suppression of the maternal viral load to undetectable levels (<50) using HAART reduces transmission to 1-2%
B - unknown, but transmission more related to viral load than therapy
C - could be true, >4hrs of PROM does double risk of transmission. Other factors increase transmission but not necessarily x2
D - CD4 <200 is defined as AIDS and is associated with opportunistic infections
Which of the following is NOT a recognised cause of pulmonary hypertension in pregnancy?
Select one:
a.
Cardiomyopathy
b.
Pulmonary embolism
c.
Left ventricular failure
d.
Mitral stenosis
A - cardiomyopathy
B - definite cause, C- definite cause, D - very likely cause
During surgery on an 11-year-old girl, a stage IA, grade 1, 10cm malignant (immature) teratoma is found in the left ovary.
Initial therapy should include:
Select one:
a.
total abdominal hysterectomy, bilateral salpingo-oophorectomy, omentectomy, postoperative irradiation.
b.
bilateral salpingo-oophorectomy.
c.
left salpingo-oophorectomy.
d.
total abdominal hysterectomy, bilateral salpingo-oophorectomy, omentectomy, postoperative chemotherapy.
C - but should also include washings
A Chinese born woman is noted on her routine antenatal testing to have a haemoglobin concentration of 115g/L (Normal range: 110-150), MCV of 72fL (Normal range: 85-95). Her ferritin is 25mcg/L (Normal range: 20-100) and her haemoglobin electrophoresis is normal.
Which test will help most to ascertain fetal risk?
Select one:
a.
Test her partner’s haemoglobin electrophoresis
b.
Test for serum transferrin
c.
Test her haemoglobin DNA genotype
d.
Test her partner’s full blood examination
D - Test her partners full blood examination
Which of the following statements is correct?
Select one:
a.
Sensitivity and specificity are properties of a test not affected by the prevalence of the disease in question.
b.
The sensitivity of a test is proportional to the specificity.
c.
Specificity is the reciprocal of the negative predictive value.
d.
When testing for a rare disease, a test with a high sensitivity and specificity will also have a high predictive value.
A - Sensitivity and specificity are properties of a test not affected by the prevalence of the disease in question
What effect does an electrosurgical waveform have if it is high-current, low voltage and elevates the tissue temperature rapidly (> 100˚ C) to produce vaporisation?
Select one:
a.
Desiccation
b.
Cutting
c.
Coagulation
d.
Fulguration
B - cutting
Which of the following is most typical of a fetal scalp pO2 measured in early labour?
Select one:
a.
32 mmHg
b.
42 mmHg
c.
52 mmHg
d.
22 mmHg
D - 22mmHg
Oxygen sats in term fetus 67-75% with a pO2 of 20-24mmHg and a pH of 7.38-7.41
Which of these congenital malformations is most likely to be associated with maternal diabetes mellitus?
Select one:
a.
Isolated ventricular septal defect
b.
Duodenal atresia
c.
Gastroschisis
d.
Posterior urethral valves
A - VSD
A 26-year-old multigravid woman at 30 weeks gestation, comes to the labour suite at a Level II hospital with a frank breech presentation at +3 station. Delivery begins to occur spontaneously until expulsion of the fetal thorax, when the cervix is noted to be incompletely dilated and the fetal head entrapped.
Which of the following would be of most value in this clinical situation?
Select one:
a.
Fentanyl
b.
Magnesium sulphate
c.
Thiopentone
d.
Glyceryl trinitrate (GTN)
D - GTN
The Guthrie test for phenylketonuria is:
Select one:
a.
predictive testing.
b.
carrier testing.
c.
exclusion testing.
d.
diagnostic testing.
D - Diagnostic testing
A 31-year-old woman had a fetal anomaly ultrasound showing a VSD. An amniocentesis showed normal karyotype. A detailed discussion with the obstetrician and paediatric cardiologist suggests a good prognosis. However, the patient requests a termination of pregnancy.
What will be the most relevant guiding ethical principle to assist in this decision making?
Select one:
a.
Justice
b.
Autonomy
c.
Beneficence
d.
Non-maleficence
B - Autonomy
A 36-year-old female with a male partner presents with primary infertility for one year. Her periods are regular and she is ovulating based on a mid-luteal progesterone concentration. Her BMI is 25. They have no sexual difficulties. She has had a normal pelvic ultrasound and has patent tubes. The partner’s SA is 100 million/ml, motility 50%, abnormal forms 80%.
What is the best option to achieve pregnancy in the next 12 months?
Select one:
a.
Controlled ovarian hyperstimulation and intrauterine insemination
b.
Continue trying to conceive spontaneous pregnancy for a further 12 months
c.
Ovulation induction with clomid
d.
She should consider an egg donor
A - Controlled ovarian hyperstimulation and intrauterine insemination
Which of the following statements regarding hyperandrogenic chronic anovulation and polycystic ovarian syndrome is most correct?
Select one:
a.
Approximately 30% of normal ovulatory women have an ultrasound appearance of polycystic ovaries and approximately 75% of women with hyperandrogenic chronic anovulation have an ultrasound appearance of polycystic ovaries.
b.
Approximately 30% of normal ovulatory women have an ultrasound appearance of polycystic ovaries and approximately 90% of women with hyperandrogenic chronic anovulation have an ultrasound appearance of polycystic ovaries.
c.
Approximately 5% of normal ovulatory women have an ultrasound appearance of polycystic ovaries and approximately 75% of women with hyperandrogenic chronic anovulation have an ultrasound appearance of polycystic ovaries.
d.
Approximately 5% of normal ovulatory women have an ultrasound appearance of polycystic ovaries and approximately 90% of women with hyperandrogenic chronic anovulation have an ultrasound appearance of polycystic ovaries.
A - 30% USS appearances of PCOS, 75% chronic anovulation have PCOS on USS
Regarding benefits and risks of the tension free vaginal tape procedure, which of the following statements is correct?
Select one:
a.
The cure rate on 24 hours pad test at 3 years is ~95%
b.
The risk of needing to perform self catheterisation is ~1%
c.
The vaginal erosion rate within 3 years is ~10%
d.
The risk of overactive bladder postoperatively is ~15%
B - risk of ISC is approx. 1%
Not A - cure rate at 1 year 92% and 3 years 79% on 2019 review
Not C - erosion in 2-8% of patients
Which of the following statements about pituitary prolactinomas is correct?
Select one:
a.
Patients with microprolactinomas should be maintained on dopamine agonist therapy such as bromocriptine throughout pregnancy.
b.
The effects of oestrogen deficiency are rarely an indication for treatment of young women with microprolactinomas and amenorrhoea.
c.
They are found, at post-mortem examination, in approximately 10% of women who have died of non-endocrine disease.
d.
Patients with untreated microprolactinomas should be discouraged from breastfeeding.
C - incidentally noted at post mortem study from 2023 said 14%
Not A or D
Not B - hyperprolactinaemia can cause oestrogen deficiency and potentially amenorrhea and infertility so should be an indication for treatment in women wishing to conceive
A 45-year-old woman with known BRCA 1 had mastectomy and BSO for breast and ovarian cancers.
What are the most likely histology results?
Select one:
a.
Breasts- oestrogen receptor positive
Ovaries – serous adenocarcinoma
b.
Breasts- progesterone receptor positive. Ovaries – mucinous adenocarcinoma
c.
Breasts- oestrogen receptor negative. Ovaries – mucinous adenocarcinoma
D.
Breasts - progesterone receptor negative. Ovaries - serous adenocarcinoma
D
Breasts- progesterone receptor negative; Ovaries – serous adenocarcinoma
A primigravid woman is seen at 30 weeks gestation with right sided abdominal pain and vomiting. Appendicitis is suspected.
What is the correct management of this instance?
Select one:
a.
Administer steroids for fetal lung maturation and observe.
b.
Undertake appendicectomy.
c.
Perform ultrasound to exclude appendicitis.
d.
Perform MRI scan to exclude appendicitis.
B - undertake appendicectomy.
Ultrasound sensitivity 70-100%, Specificity 85-96% and readily available. MRI highest sensitivity but less available
A 22-year-old primigravid woman presents to your birthing suite. She has had limited antenatal care in Nigeria. She is at term and contracting 4:10. On vaginal examination she has grade 3 Female Genital Mutilation.
What is the most appropriate management?
Select one:
a.
A right mediolateral episiotomy
b.
An anterior episiotomy and control of bleeding only
c.
An anterior episiotomy and re-infibulate after delivery
d.
Immediate LSCS
B - ant epis and control bleeding.
FGM type 3 is infibulation where whole vulva has been covered except for small opening. RCOG guideline states deinfibulation/anterior episiotomy can be done in labour under local anaesthetic. If not possible then C/S indicated
The lifetime risk of having an operation for genital prolapse in Australia is approximately:
Select one:
a.
1 in 100.
b.
1 in 40.
c.
1 in 3.
d.
1 in 9.
D - 1 in 9
Which of the following statements is true regarding third trimester idiopathic oligohydramnios confirmed on ultrasound?
Select one:
a.
The earlier the diagnosis in the 3rd trimester the worse the perinatal outcomes.
b.
Isolated oligohydramnios is associated with worse perinatal outcomes.
c.
Amnioinfusion should be performed regularly until term.
d.
The use of amniotic fluid index (AFI) of less than 5cm rather than a single deepest pocket (SDP) of less than 2cm for diagnosis improves perinatal outcome.
A
Which one of the following is INCORRECT?
Select one:
a.
Iron requirement in the menstruating, non-pregnant, female is approximately 2mg/day.
b.
Iron absorption in the non-pregnant adult is approximately 5% of daily intake.
c.
Iron requirement in the pregnant female is approximately 9mg/day.
d.
Cord blood serum ferritin is greater than maternal serum ferritin.
C - Iron requirement in the pregnant female is approximately 9mg/day.
Should be 27mg/day
In advising a woman on whether she should continue her pregnancy to 42 weeks or be induced at 41 weeks, which of the following is FALSE?
Select one:
a.
An ultrasound will be indicated if she elects to wait.
b.
If the Bishop’s cervical score is <5, intravaginal prostaglandins will be recommended.
c.
Waiting is likely to be associated with a higher perinatal mortality.
d.
The Canadian randomised trial (Hannah et al) showed that induction of labour increases the likelihood of caesarean section.
D - Hannah at al study from 1992, showed reduced rates of C/S, similar perinatal mortality and neonatal morbidity
Which one of the following statements is true concerning toxoplasmosis infection in pregnancy?
Select one:
a.
Detection of IgM in fetal blood is the preferred method for diagnosis of intrauterine infection.
b.
Pyramethamine/Sulfadoxine is the most effective therapy but spiramycin is theoretically less embryotoxic.
c.
The risk of fetal infection after maternal seroconversion is higher in early pregnancy than in late pregnancy.
d.
The predominant source of human infection is the domestic cat (Felis domestica).
B - Pyramethamine/Sulfadoxine is the most effective therapy but spiramycin is theoretically less embryotoxic.
You deliver an Rh-positive infant of an Rh-negative patient at term. The blood bank reports that the Kleihauer-Betke test reveals a feto-maternal haemorrhage of 40mL of fetal red cells. The indirect Coombs’ test shows no anti-D antibodies.
Which of the following statements about this situation is correct?
Select one:
a.
If anti-D immunoglobulin is given, the direct Coombs’ test on the mother should be repeated within 24 hours.
b.
The usual dose of one vial (625 IU) of anti-D immunoglobulin should be protective against sensitisation.
c.
Seven vials of anti-D immunoglobulin will be necessary to prevent sensitisation.
d.
No anti-D immunoglobulin is indicated because the patient is already sensitised.
C - Seven vials of anti-D immunoglobulin will be necessary to prevent sensitisation
The most frequent cause of dyspareunia is:
Select one:
a.
pelvic inflammatory disease.
b.
endometriosis.
c.
inadequate vaginal lubrication.
d.
vaginismus.
C - inadequate vaginal lubrication
What is the primary mechanism of the low dose combined oral contraceptive pill in preventing pregnancy?
Select one:
a.
Alteration in fallopian tube motility
b.
Suppression of gonadotropin secretion
c.
Decidualization of the endometrium
d.
Alteration of cervical mucous thickness
B - Suppression of gonadotropin secretion
The appropriate initial treatment of pulmonary thromboembolism is:
Select one:
a.
low molecular weight heparin (LMWH) 1mg/kg BD subcutaneous injection.
b.
low molecular weight heparin (LMWH) 1.5mg/kg BD subcutaneous injection.
c.
unfractionated heparin 10,000 units IV followed by IV infusion.
d.
unfractionated heparin 5000 units BD subcutaneous injection.
A - LMWH 1mg/kg BD
During an abdominal sacrocolpopexy procedure, on a woman with a large recurrent enterocoele and rectocoele, which of the following is the most appropriate?
Select one:
a.
The use of a Type 3 (multifilament mesh, microporous) polyglactin mesh.
b.
The procedure should generally include a perineorrhaphy.
c.
The procedure should generally be supported by Moscowitz operation.
d.
The upper end of the mesh should be attached between S1 and S3 at more than one point.
D - The upper end of the mesh should be attached between S1 and S3 at more than one point.
The incidence of lymph node involvement in micro-invasive carcinoma of the cervix is:
Select one:
a.
5%.
b.
3%.
c.
10%.
d.
1%.
D - 1%
Which of the following statements concerning multifetal reduction is FALSE?
Select one:
a.
Reducing triplets to twins at 10-14 weeks gestation is associated with an increase in mean gestation at delivery.
b.
Reducing triplets to twins at 10-14 weeks gestation is associated with a subsequent rate of miscarriage of both twins of approximately 8%.
c.
Reducing triplets to twins at 10-14 weeks gestation is not associated with a reduction in perinatal mortality.
d.
KCl and xylocaine are alternative agents to use for Selective Feticide.
C - Reducing triplets to twins at 10-14 weeks gestation is not associated with a reduction in perinatal mortality
Following the conclusion of the ORACLE trials, which of the following antibiotics, or combinations of antibiotics, would be indicated in women with threatened preterm labour (without premature rupture of the membranes) and no other clinical signs of infection?
Select one:
a.
Amoxycillin and Metronidazole
b.
None of these options are indicated
c.
Amoxycillin-clavulinic acid
d.
Erythromycin
B - None of these options are indicated
A woman G2P1 and her partner are referred to the antenatal clinic. She is at 14 weeks of gestation with positive anti-D antibodies during routine screening. Her qualitative titre is 1:16. She had an SVD two years ago. The baby had no issues. Her partner is heterozygous for D-antigen.
What is the most appropriate management plan?
Select one:
a.
Cordocentesis
b.
Check titres fortnightly in the mother
c.
Weekly ultrasound of fetal MCA PSV (Middle cerebral artery peak systolic velocity) to detect fetal anaemia
d.
Amniocentesis
B - Check titres fortnightly in the mother
In patients who receive Clomiphene citrate (e.g. Clomid®) for induction of ovulation, the frequency of Ovarian Hyperstimulation Syndrome is:
Select one:
a.
reduced with ultrasound follicle tracking.
b.
less than 1%.
c.
5-10%.
d.
15-20%.
B - less than 1%
Which statement is most correct with respect to malaria and pregnancy?
Select one:
a.
Doxycycline is recommended chemoprophylaxis if travelling to chloroquine-resistant areas.
b.
Quinine can be used if necessary in the treatment of malaria in pregnancy.
c.
Mefloquine cannot be used in women with G6PD deficiency.
d.
Women in pregnancy and the puerperium are not at increased risk of contracting malaria.
B - Quinine can be used if necessary in the treatment of malaria in pregnancy
In which of the following scenarios would you have legally fulfilled your duty of care as a medical practitioner?
Select one:
a.
A woman arrives at your practice before the clinic opens carrying a sick infant. She is not one of your patients. She asks you if you are a doctor and you reply that you are not.
b.
You perform an emergency caesarean section on one of your private patients due to fetal distress in labour. Her next pregnancy is complicated by a caesarean scar pregnancy and uterine rupture. You had discussed possible complications with her prior to her initial surgery but had not mentioned this rare but serious complication
c.
One of your regular patients has high grade abnormalities detected on her routine cervical screening. You arrange a referral for colposcopy but you receive a note from the hospital that your patient did not attend. You try to contact her by telephone but her number has been disconnected. You take no further action.
d.
You are on a flight travelling between Brisbane and Auckland. A passenger in first class has collapsed and a call has been made for assistance from any doctors on board. You do not respond.
B
Contraception in the peri-menopausal woman should be continued until:
Select one:
a.
she has had three anovulatory cycles in a row.
b.
she has had one full year without periods and exogenous hormones.
c.
her cycle has begun to elongate.
d.
she has had a blood test showing FSH:LH ratio has risen to two.
B - she has had one full year without periods and exogenous hormones