AIM EXAM ARENA
KMU Past Paper Practice
Topic 18 β Early Pregnancy Disorders: Miscarriage, Ectopic Pregnancy and Gestational Trophoblastic Disease
4th Year MBBS β’ 20 A-type Single Best Answer MCQs
Aligned with the supplied Topic 18 curriculum coverage. :contentReference[oaicite:0]{index=0}
MCQ 1
Question:
A 25-year-old woman at 9 weeks of gestation develops cramping and vaginal bleeding and passes recognizable pregnancy tissue. Several hours later, her pain and bleeding markedly decrease. Examination shows a closed cervix, and ultrasound demonstrates an empty uterine cavity. Which diagnosis best fits the current findings?
Options:
Threatened miscarriage
Incomplete miscarriage
Complete miscarriage
Inevitable miscarriage
Missed miscarriage
Correct Answer: Complete miscarriage
Explanation: Expulsion of all products followed by reduction in bleeding, closure of the cervix and an empty uterus indicates a complete miscarriage.
MCQ 2
Question:
A 28-year-old woman at 10 weeks of gestation presents with increasing vaginal bleeding and painful uterine cramps. Speculum examination shows that the cervical os is open, but no pregnancy tissue has yet been expelled. Which diagnosis is most appropriate?
Options:
Missed miscarriage
Incomplete miscarriage
Threatened miscarriage
Complete miscarriage
Inevitable miscarriage
Correct Answer: Inevitable miscarriage
Explanation: Bleeding and cramping with an open cervix indicate that pregnancy loss is in progress even though the products have not yet been expelled.
MCQ 3
Question:
A woman presents three days after an early pregnancy loss with fever, lower abdominal pain and offensive vaginal discharge. She is tachycardic, the uterus is tender, and ultrasound suggests retained products. Which management principle is most appropriate after immediate stabilization?
Options:
Expectant observation with analgesia
Intravenous antimicrobials followed by uterine evacuation
Systemic methotrexate followed by surveillance
Progesterone therapy with bed rest
Serial Ξ²-hCG measurement alone
Correct Answer: Intravenous antimicrobials followed by uterine evacuation
Explanation: Fever, uterine tenderness and offensive discharge indicate septic miscarriage; infection requires antimicrobial therapy and removal of infected retained tissue after stabilization.
MCQ 4
Question:
A healthy 27-year-old woman experiences a spontaneous first-trimester pregnancy loss. She has no uterine abnormality, systemic illness or previous pregnancy complications. Which underlying abnormality is an important cause of an isolated early loss such as this?
Options:
Chromosomal abnormality of the conceptus
Congenital distortion of the uterine cavity
Placental thrombosis from antiphospholipid syndrome
Structural weakness of the uterine cervix
Scarring of a fallopian tube
Correct Answer: Chromosomal abnormality of the conceptus
Explanation: Abnormal embryonic chromosomes are an important cause of spontaneous early pregnancy loss, particularly when no specific maternal disorder is identified.
MCQ 5
Question:
A 31-year-old woman with poorly controlled diabetes is planning another pregnancy after a previous miscarriage. Which intervention best addresses a modifiable maternal factor before conception?
Options:
Routine progesterone for every future conception
Serial Ξ²-hCG testing before conception
Elective uterine evacuation after conception
Optimize metabolic control before pregnancy
Avoid normal physical activity in pregnancy
Correct Answer: Optimize metabolic control before pregnancy
Explanation: Poorly controlled maternal metabolic disease can increase pregnancy risk; preconception optimization addresses a preventable contributor rather than treating all miscarriages nonspecifically.
MCQ 6
Question:
A woman is medically stable after treatment of an uncomplicated pregnancy loss but appears distressed and reluctant to discuss the event because she fears being judged. Which response best reflects an appropriate post-abortion care principle?
Options:
Defer all discussion until a future pregnancy occurs
Provide confidential, respectful and nonjudgmental support
Limit care to treatment of physical complications
Require contraceptive use before discharge
Avoid discussing reproductive plans with the patient
Correct Answer: Provide confidential, respectful and nonjudgmental support
Explanation: Post-abortion care includes emotional support and clear communication delivered respectfully and confidentially, in addition to management of physical complications.
MCQ 7
Question:
During laparoscopic treatment of a tubal ectopic pregnancy, the implantation is found in the widened segment of the fallopian tube lying between the infundibulum and the isthmus. Which anatomical site is involved?
Options:
Fimbrial segment
Isthmic segment
Interstitial segment
Ampullary segment
Ovarian surface
Correct Answer: Ampullary segment
Explanation: The ampulla is the widened tubal segment between the infundibulum and isthmus and is the commonest site of tubal ectopic implantation.
MCQ 8
Question:
A 30-year-old woman previously treated for a tubal ectopic pregnancy now has a new positive pregnancy test. She has no pain or bleeding. Which follow-up step is particularly important in this pregnancy?
Options:
Early assessment to establish the pregnancy location
Routine chemotherapy after pregnancy confirmation
Prophylactic uterine evacuation in early gestation
Delay imaging until fetal movements are perceived
Begin antiprogestin treatment immediately
Correct Answer: Early assessment to establish the pregnancy location
Explanation: Previous ectopic pregnancy increases recurrence risk, so a subsequent conception should be assessed early to confirm intrauterine implantation.
MCQ 9
Question:
A clinically stable woman has a small unruptured ectopic pregnancy. She has minimal symptoms, serial Ξ²-hCG values are spontaneously declining, and she can return reliably for review. Which management approach may be appropriate?
Options:
Immediate hysterectomy
Routine uterine curettage
Progesterone supplementation
Mifepristone monotherapy
Carefully supervised expectant management
Correct Answer: Carefully supervised expectant management
Explanation: Selected stable patients with evidence of spontaneous resolution and reliable follow-up may be managed expectantly rather than receiving immediate medical or surgical treatment.
MCQ 10
Question:
A stable woman requires surgery for an unruptured tubal ectopic pregnancy. At laparoscopy, the affected tube is extensively damaged. Which factor should most directly guide whether the tube is conserved or removed?
Options:
The degree of nausea during pregnancy
The duration of preceding amenorrhea
Tubal damage and future fertility considerations
The presence of breast tenderness
The patient’s ABO blood group alone
Correct Answer: Tubal damage and future fertility considerations
Explanation: Surgical management is individualized according to the condition of the affected tube and the patient’s fertility considerations rather than unrelated pregnancy symptoms.
MCQ 11
Question:
A woman with a molar pregnancy has severe persistent nausea and vomiting that is much greater than expected for gestational age. Which hormonal abnormality most directly explains this manifestation?
Options:
Markedly elevated circulating hCG
Suppressed circulating prolactin
Reduced circulating cortisol
Markedly reduced placental estrogen
Suppressed maternal gonadotropins
Correct Answer: Markedly elevated circulating hCG
Explanation: Excessive trophoblastic proliferation can produce very high hCG concentrations, contributing to the unusually severe nausea and vomiting associated with molar pregnancy.
MCQ 12
Question:
A 23-year-old woman is diagnosed with a complete hydatidiform mole. She is hemodynamically stable and wishes to preserve fertility. Which treatment is the most appropriate definitive initial approach?
Options:
Expectant observation until spontaneous expulsion
Systemic methotrexate as sole initial treatment
Progesterone therapy to stabilize the pregnancy
Suction evacuation of the uterine contents
Routine hysterectomy in every patient
Correct Answer: Suction evacuation of the uterine contents
Explanation: Suction evacuation removes the molar tissue while preserving fertility and is the standard uterine evacuation principle for a stable patient with hydatidiform mole.
MCQ 13
Question:
After successful evacuation of a hydatidiform mole, a woman is advised to use reliable contraception during the period of hCG surveillance. What is the main reason for this advice?
Options:
Contraception directly destroys residual trophoblast
A new pregnancy would make hCG interpretation difficult
Ovulation prevents trophoblastic regression
Pregnancy immediately converts a mole to carcinoma
Contraception suppresses all maternal hCG secretion
Correct Answer: A new pregnancy would make hCG interpretation difficult
Explanation: A new pregnancy also raises hCG, making it difficult to distinguish normal pregnancy-related hormone production from persistent trophoblastic disease.
MCQ 14
Question:
A woman with a hydatidiform mole has experienced repeated episodes of uterine bleeding before diagnosis. She is pale and complains of fatigue. Which complication most directly results from this prolonged blood loss?
Options:
Maternal hyperthyroidism
Early hypertensive disease
Persistent trophoblastic neoplasia
Pulmonary trophoblastic metastasis
Anemia due to uterine hemorrhage
Correct Answer: Anemia due to uterine hemorrhage
Explanation: Repeated vaginal bleeding from abnormal molar tissue can produce clinically significant blood loss and anemia.
MCQ 15
Question:
Two women undergo evacuation for molar pregnancies. Histology confirms a complete mole in one and a partial mole in the other. Why is the woman with the complete mole particularly important to monitor for persistent disease?
Options:
Only complete moles produce measurable hCG
Complete moles preferentially implant in the tube
Persistent trophoblastic neoplasia is more likely after a complete mole
Partial moles routinely resolve without follow-up
Complete moles contain a structurally normal fetus
Correct Answer: Persistent trophoblastic neoplasia is more likely after a complete mole
Explanation: Complete moles carry a greater risk of persistent trophoblastic neoplasia than partial moles, making post-evacuation surveillance particularly important.
MCQ 16
Question:
A woman being treated for gestational choriocarcinoma develops a sudden severe headache, vomiting and a focal neurological deficit. Imaging reveals metastatic disease in the brain. Which complication is particularly concerning because these metastases are highly vascular?
Options:
Uterine perforation
Thyroid storm
Cervical insufficiency
Tubal rupture
Intracranial hemorrhage
Correct Answer: Intracranial hemorrhage
Explanation: Choriocarcinoma metastases are highly vascular and may bleed; cerebral metastases can therefore cause neurological deterioration and intracranial hemorrhage.
MCQ 17
Question:
Histological examination of a uterine tumor from a woman with persistent elevated hCG after pregnancy shows a highly hemorrhagic and necrotic malignant trophoblastic lesion. Which cellular pattern best supports gestational choriocarcinoma?
Options:
Malignant endometrial glands with stromal invasion
Malignant cytotrophoblast and syncytiotrophoblast
Hydropic villi with mild focal proliferation
Squamous nests with keratin formation
Decidual tissue with acute inflammation
Correct Answer: Malignant cytotrophoblast and syncytiotrophoblast
Explanation: Gestational choriocarcinoma is composed of malignant cytotrophoblastic and syncytiotrophoblastic cells and characteristically shows marked hemorrhage and necrosis.
MCQ 18
Question:
A pathology report describes persistent trophoblastic tissue that has locally invaded the uterine wall following a molar pregnancy. Which condition is classified as gestational trophoblastic neoplasia rather than as a hydatidiform mole?
Options:
Partial hydatidiform mole
Complete hydatidiform mole
Tubal ectopic pregnancy
Invasive mole
Missed miscarriage
Correct Answer: Invasive mole
Explanation: Invasive mole belongs to gestational trophoblastic neoplasia, whereas complete and partial moles are classified as hydatidiform moles.
MCQ 19
Question:
A woman with a nonviable intrauterine pregnancy is being considered for treatment with mifepristone. Her history reveals long-term systemic corticosteroid therapy for a chronic disorder. Which pharmacological property of mifepristone is particularly relevant to this history?
Options:
Antiglucocorticoid receptor activity
Direct folate antagonism
Oxytocin receptor stimulation
Thyroid receptor blockade
Estrogen receptor activation
Correct Answer: Antiglucocorticoid receptor activity
Explanation: In addition to progesterone antagonism, mifepristone has antiglucocorticoid activity, making significant adrenal disease or long-term systemic corticosteroid therapy clinically relevant.
MCQ 20
Question:
A clinically stable woman has a confirmed nonviable intrauterine pregnancy and wishes to avoid surgical evacuation if medically appropriate. Which reproductive use of mifepristone best applies to this situation?
Options:
Treatment of a resolving tubal ectopic pregnancy
Treatment of metastatic trophoblastic malignancy
Medical management of selected early pregnancy loss
Post-molar hCG surveillance therapy
Prevention of recurrent miscarriage before conception
Correct Answer: Medical management of selected early pregnancy loss
Explanation: Mifepristone may be used in selected nonviable intrauterine pregnancies, generally with a prostaglandin to facilitate medical uterine evacuation.