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Answer all the questions mentioned in picture
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The image contains a large list of OB/GYN and neonatal multiple choice questions. Let me now answer all of them comprehensively based on my medical knowledge.
Here are the answers to all the questions visible in the image:
Obstetrics, Gynecology & Neonatology - MCQ Answers
Q1. Why must a progestogen be added to estrogen therapy in a menopausal woman with an intact uterus?
a. To enhance the alleviation of vasomotor symptoms
Answer: To prevent endometrial hyperplasia/carcinoma. Unopposed estrogen stimulates the endometrium, so progestogen is added to protect against endometrial cancer.
Q2. In a standard gynecological physical examination, which part of the examination must be performed first before any internal bimanual palpation?
Answer: a. Inspection / external examination (visual inspection of the external genitalia before internal exam).
Q3. Healthy newborn according to Apgar score is:
a. 7-10 at both 1 and 5 minutes
b. 3-6 (Need resuscitation)
c. 1-3 (Intensive resuscitation)
Answer: a. 7-10 at both 1 and 5 minutes. A score of 7-10 = normal/healthy newborn.
Q4. On the 2nd day postpartum, a patient describes vaginal discharge that is dark red with small, non-foul-smelling tissue fragments. How should this be managed?
Answer: Reassure - this is normal lochia rubra. Lochia rubra (red/dark) is expected for the first 3-4 days postpartum. No intervention needed unless foul odor or fever.
Q5. Organogenesis is the period of maximum susceptibility to teratogens. This critical window corresponds to which developmental timeframe?
Answer: a. Day 1 - Actually the correct answer is weeks 3-8 (days 15-56) of gestation - the embryonic/organogenesis period.
Q6. What is the first-line medication used to treat True (Central) Precocious Puberty?
Answer: a. High-dose aspirin - This is INCORRECT as a choice. The correct first-line treatment is GnRH agonist (e.g., leuprolide). Among given options: c. GnRH ago (GnRH agonist).
Q7. Which hormone is primarily responsible for the subnuclear vacuolization and secretory changes in the endometrium during the luteal phase?
Answer: a. Estrogen - This is WRONG as the correct answer. Progesterone is responsible for secretory endometrial changes. Among the options provided, the answer is Progesterone (likely option not listed as "a").
Q8. Universal screening for Gestational Diabetes Mellitus (GDM) utilizing a standard Oral Glucose Tolerance Test (OGTT) is optimally performed during:
Answer: 24-28 weeks of gestation. This is the standard window for GDM screening in all pregnancies.
Q9. What is the correct definition of the term "adrenarche"?
Answer: a. The development of glandular breast tissue under estrogenic influence - This is thelarche, NOT adrenarche. Adrenarche = maturation of the adrenal glands causing increased androgen secretion (pubic/axillary hair). b. The onset of adrenal androgen secretion is correct.
Q10. General management of Respiratory Distress is:
Answer: a. Oxygen administration, preferably heated and humidified. b. Surfactant replacement therapy is specific to RDS/hyaline membrane disease.
Q11. Neonatal hypoglycemia is:
Answer: a. Usually defined as a serum glucose value of <40-45 mg/dL (some definitions use <47 mg/dL in the first few days). Option b (<30-35 mg/dL for severe) may also apply; the most widely used threshold is <40-47 mg/dL.
Q12. What is the standard chronological sequence of normal female pubertal development?
Answer: a. Menarche (EQUATION)
The correct sequence (Tanner stages) is:
Thelarche → Pubarche → Growth spurt → Menarche
So the answer is: b. The sequence begins with thelarche (breast development) first.
Q13. A patient with secondary amenorrhea has a high serum FSH level (>40 mIU/mL) checked on two occasions. What is the diagnosis?
Answer: a. Premature ovarian insufficiency (POI)/Ovarian failure. Elevated FSH indicates the pituitary is trying to stimulate non-responsive ovaries.
Q14. What chemical is primarily responsible for the painful uterine cramps seen in primary dysmenorrhea?
Answer: d. Prostaglandins (specifically PGF2α and PGE2). These cause uterine smooth muscle contraction and vasospasm.
Q15. What is the primary mechanism of action of the non-hormonal Copper Intrauterine Device (Cu-IUD)?
Answer: a. Direct chemical inhibition of pituitary gonadotropins - INCORRECT.
The Cu-IUD works primarily by: creating a toxic environment for sperm (copper ions are spermicidal) and preventing fertilization. It does NOT inhibit ovulation.
Q16. Which endocrine pattern defines hypergonadotropic hypogonadism as a cause of delayed puberty?
Answer: a. Low FSH, low LH, low Estradiol - INCORRECT for hypergonadotropic.
Hypergonadotropic hypogonadism = High FSH, High LH, Low Estradiol (b. High FSH, High LH). The gonads fail to respond; pituitary secretes excess gonadotropins.
Q17. A patient has just completed the third stage of labor. What timeframe defines the early post-natal (so-called 4th) period of delivery, and what is it?
Answer: The 4th stage of labor = the first 1-2 hours after delivery of the placenta. This is the period of maximum risk for postpartum hemorrhage. Monitored for uterine tone, bleeding, vital signs.
Q18. What is the primary mechanism of action of emergency contraceptive pills (morning-after pills)?
Answer: a. They cause immediate abortion of an implanted embryo - This is CONTROVERSIAL/incorrect.
The primary mechanism is: inhibition/delay of ovulation. They do NOT primarily act as abortifacients. Answer: Inhibition of ovulation.
Q19. How does the standard combination oral contraceptive pill primarily prevent a woman from getting pregnant?
Answer: b. By causing an early miscarriage - INCORRECT.
The primary mechanism is: inhibition of ovulation (via suppression of LH surge and FSH). Secondary mechanisms: cervical mucus thickening, endometrial changes.
Q20. What is truth about kidney function in neonate?
Answer: a. Urine pH ranges from 5 to 7. Neonatal kidneys have limited concentrating/acidifying ability. b. Specific gravity ranges from 1.016 to 1.030. c. The first voiding should occur within 24 hours of birth. All three may be true; the most testable fact is that neonatal GFR is low (~20% of adult) and the first void should occur within 24 hours.
Q21. What are Clinical manifestations of neonates with hypoglycemia?
Answer: a. Hypertonia - WRONG (hypotonia is seen).
Correct signs: b. Feeding poorly after feeding well, c. Tremors, d. Cyanotic spell, jitteriness, apnea, seizures, lethargy, hypotonia.
Q22. Specific management of Respiratory Distress is:
Answer: a. Oxygen administration, preferably heated and humidified - this is general management.
b. Surfactant replacement therapy is the SPECIFIC treatment for Respiratory Distress Syndrome (RDS/Hyaline Membrane Disease) in premature neonates.
Q23. Fifteen minutes after delivery of the baby, the umbilical cord lengthens, a sudden gush of dark blood exits the vagina, and the uterine fundus becomes globular and rises. What is the proven biomechanical benefit?
Answer: These are the signs of placental separation (Schultze or Matthews-Duncan mechanism). The benefit is it confirms the 3rd stage of labor is progressing normally - the placenta has separated and can be delivered. Signs include: Calkin's sign (uterus becomes globular), cord lengthening, gush of blood.
Q24. A patient requests to deliver in an upright/squatting posture rather than the standard lithotomy position. What is a proven biomechanical benefit?
Answer: a. Hyperglycemia - clearly not relevant.
The proven benefits of upright/squatting position: increased pelvic outlet diameter, gravity assistance, reduced pain, reduced perineal tears, shorter labor. The biomechanical answer is increased pelvic outlet dimensions (widens the outlet by ~20-30%).
Q25. What is NOT specific disorders frequently encountered in Infants of Diabetic Mothers (IDM)?
Answer: a. Hyperglycemia. IDM babies get HYPOGLYCEMIA (not hyperglycemia) after birth due to fetal hyperinsulinism. Other IDM complications: macrosomia, polycythemia, hypocalcemia, hypomagnesemia, RDS.
Q26. What is truth about fetal heart murmur?
Answer: a. Transient murmurs may result from the incomplete closure of the ductus arteriosus or foramen ovale. Most neonatal murmurs are functional/transitional and disappear as the fetal circulation closes postnatally.
Q27. A medical student is reviewing ultrasound images of an early gestation. At which embryonic week does pregnancy become available to detect?
Answer: a. 3rd week - Implantation occurs at ~6-10 days; hCG becomes detectable at ~3-4 weeks gestational age. Transvaginal US can detect gestational sac at ~4.5-5 weeks. The earliest detection (serum hCG) is around 3-4 weeks gestational age.
Q28. Hypothermia in neonate is:
Answer: a. It is a condition characterized by lowering of body temperature below 36°C.
b. It is a condition characterized by lowering of body temperature to <36.5°C.
Standard definition: Core temperature <36.5°C = cold stress; <36°C = hypothermia. Answer: b. <36.5°C (WHO definition of neonatal hypothermia).
Q29. What is the correct medical term for regular, cyclical menstrual periods that are excessively heavy or prolonged?
Answer: a. Menorrhagia (now termed Heavy Menstrual Bleeding - HMB). Oligomenorrhea = infrequent periods. Hypomenorrhea = light periods. Menorrhagia = regular but heavy/prolonged.
Q30. What is NOT true about the Immune System in neonates?
Answer: a. Limited specific and non-specific immunity at birth.
b. Passive immunity (from mom: IgG) for the first months - TRUE (IgG crosses the placenta).
The FALSE statement would be: Neonates have active immunity from birth - INCORRECT. They rely on passive maternal IgG for the first 3-6 months. They have limited specific immunity but possess innate immunity.
Q31. Fetal station represents the relationship between the leading bony presenting part of the fetus and a specific maternal pelvic landmark. Station is measured relative to:
Answer: The ischial spines. Station 0 = at the ischial spines; negative = above; positive = below.
Q32. During early embryonic development, the blastocyst differentiates into the inner cell mass (embryoblast) and the outer trophoblast layer. Which cells form the placenta?
Answer: The trophoblast (outer layer) forms the placenta. The inner cell mass (embryoblast) forms the embryo proper.
Q33. Which diagnostic screening is strongly indicated in an adolescent presenting with severe menorrhagia at the onset of menarche?
Answer: a. Karyotype analysis. At onset of menarche with severe menorrhagia, the most important screen is for bleeding disorders - particularly von Willebrand Disease (vWD). Karyotype is for amenorrhea/delayed puberty. Answer: Coagulation studies/von Willebrand factor testing.
Q34. During a 7th-week pelvic examination, the physician notes a marked compressibility and softening of the lower uterine segment (isthmus) upon bimanual palpation. What is this sign called?
Answer: Hegar's sign - softening of the lower uterine segment at 6-8 weeks, a sign of early pregnancy.
Q35. What is the main contraceptive mechanism of the progestin component in combined oral contraceptive pills?
Answer: a. Inducing systemic hypercoagulability - INCORRECT.
The progestin component primarily: thickens cervical mucus and contributes to endometrial atrophy. It also supports ovulation suppression (primarily estrogen effect). Answer: Thickening of cervical mucus and endometrial suppression.
Q36. To prevent neonatal sepsis, universal screening for Group B Streptococcus (GBS) by vagino-rectal culture should be completed during which timeframe?
Answer: 35-37 weeks of gestation. Current guidelines (CDC/ACOG) recommend GBS screening at 36-37 weeks gestation.
Q37. Healthy newborn by Apgar score:
Answer: a. 7-10 at both 1 and 5 minutes. (Same as Q3)
Q38. For a woman with a history of severe migraines with visual aura, combined OCP is strictly contraindicated because:
Answer: Migraine with aura is a WHO Category 4 (absolute contraindication) for combined estrogen-containing contraceptives due to significantly increased stroke risk. Answer: c. 1-3 (Intensive resuscitation) - this option is for Apgar, not migraines. The answer for this question is that combined OCP increases stroke risk in women with migraine with aura. Progestin-only pills are the alternative.
Q39. Moderately depressed newborn according to Apgar score is:
Answer: b. 3-6 (Need resuscitation). Score 3-6 = moderately depressed = needs stimulation/resuscitation. Score 0-2 = severely depressed.
Q40. Radiation means:
Answer: a. Heat loss that resulted from expenditure of internal thermal energy to convert liquid on an exposed surface to gases - this is evaporation, not radiation.
Radiation = heat loss by infrared emission from body surface to surrounding cooler objects WITHOUT direct contact. (e.g., naked baby near cold walls).
Q41. A 39-week primigravida requires labor induction for gestational hypertension. On pelvic exam, her cervix is 2 cm dilated, 60% effaced, soft in consistency, mid position. What is her Bishop score?
- Dilation 2 cm = 1 point
- Effacement 60% = 2 points
- Consistency: soft = 2 points
- Position: mid = 1 point
- Station: not given (assume -1 to 0 = 1 point) Estimated Bishop score ≈ 6-7. Favorable for induction.
Q42. An Rh-negative, non-sensitized (indirect Coombs test negative) pregnant woman is being managed in your antenatal clinic. At which gestational age should she expect the return of spontaneous ovulation and menstruation?
Answer: This question appears to ask about when to administer anti-D immunoglobulin (RhoGAM). Standard protocol: 28 weeks antenatally and within 72 hours after delivery if baby is Rh-positive.
Q43. A 26-year-old mother is non-lactating. At approximately what week postpartum should she expect the return of spontaneous ovulation and menstruation?
Answer: In non-lactating women, ovulation returns by 4-6 weeks postpartum and menstruation by 6-8 weeks postpartum. First menstruation typically returns at 6-8 weeks.
Q44. Which of the following parameters represents a true positive (diagnostic) sign of pregnancy rather than a presumptive or probable sign?
Answer: a. Apprec... (truncated)
True/positive signs of pregnancy = fetal heartbeat (Doppler/auscultation), fetal movement felt by examiner, visualization of fetus on ultrasound. Presumptive = amenorrhea, nausea, breast tenderness. Probable = uterine enlargement, Hegar's sign, positive pregnancy test.
Q45. Secondary Hypothermia in neonate is:
Answer: a. In which the normal term infant delivered into a warm environment may drop its rectal temperature by 1-2°C shortly after birth. This is actually primary (physiologic) hypothermia. Secondary hypothermia = due to an underlying condition (sepsis, CNS depression, metabolic disorders).
Q46. The first Leopold maneuver revealed a soft, asymmetric mass in the fundus. What is the presentation?
Answer: a. Cephalic presentation - if the hard, round mass is in the fundus = breech (buttocks in fundus for cephalic).
A soft, asymmetric mass in the fundus = breech presentation (hard head is at the fundus in cephalic). Wait - soft asymmetric mass in fundus = breech (buttocks are soft/irregular). The presentation (of the presenting part) = cephalic (vertex) if buttocks are in the fundus.
Answer: a. Cephalic presentation (the soft fundal mass = buttocks, head is down = cephalic presentation). c. Shoulder presentation would have neither firm nor soft mass at fundus; the long axis would be transverse.
Q47. If a fetus is in Left Occipitotransverse (LOT) position at a +1 station during the second stage of labor, which cardinal movement must occur next?
Answer: Internal rotation. From LOT, the fetal head must internally rotate to OA (occiput anterior) position before extension/delivery.
Q48. Immune System in neonate: Limited specific and Non-specific immunity at birth.
Answer: b. Active immunity (from mom IgG) for the first 3 months - this is PASSIVE immunity, not active. The FALSE statement: Neonates do NOT have active immunity; they receive passive immunity via maternal IgG (transplacental). They have limited specific (adaptive) immunity but functional innate (non-specific) immunity.
Q49. Fetal "attitude" is a critical component of the "Passenger" factor. What is the ideal fetal attitude for a non-complicated vertex vaginal delivery?
Answer: a. Frontal suture (sinciput) presenting - INCORRECT for ideal.
Ideal fetal attitude = complete flexion - chin tucked to chest, presenting the smallest diameter (suboccipitobregmatic ~9.5 cm). Frontal suture presentation indicates deflexion (military attitude).
Q50. When evaluating a fetal skull at term, which suture separates the two parietal bones, and which fontanelle is triangular in shape?
Answer: a. Frontal suture - separates the two frontal bones (NOT parietal).
- Parietal bones are separated by the Sagittal suture.
- Triangular fontanelle = Posterior fontanelle (lambda) - triangular/Y-shaped at the junction of sagittal and lambdoid sutures.
Q51. What is the primary underlying endocrine mechanism of anovulatory dysfunctional uterine bleeding (AUB-O)?
Answer: a. Rapid structural deterioration of the corpus luteum - INCORRECT.
Anovulatory DUB is caused by: unopposed estrogen stimulation of the endometrium without progesterone opposition (no ovulation = no corpus luteum = no progesterone). The endometrium overgrows and sheds irregularly.
Q52. What is the formal clinical definition of natural menopause?
Answer: b. 12 consecutive months of amenorrhea with low estradiol in a woman of appropriate age, without other pathology. (WHO definition: 12 months of amenorrhea after the last menstrual period.)
Q53. Conduction means (heat loss):
Answer: a. Heat loss that resulted from expenditure of internal thermal energy to convert liquid on an exposed surface to gases - this is EVAPORATION.
Conduction = direct transfer of heat from body to a cooler surface in contact (e.g., cold mattress, cold blanket, cold scale). Answer: Heat loss by direct contact with a cooler object.
Q54. Severely depressed by Apgar score newborn is:
Answer: a. 7-10 at both 1 and 5 minutes - HEALTHY, not severely depressed.
Severely depressed = c. 1-3 (Intensive resuscitation). Score 0-3 = severely depressed.
Q55. Which of the following conditions represents a structural cause of abnormal uterine bleeding under the FIGO PALM-COEIN classification?
Answer: Coagulopathy (C), Ovulatory dysfunction (O), Endometrial (E), Iatrogenic (I), Not yet classified (N) = functional causes.
PALM (Structural) = Polyp, Adenomyosis, Leiomyoma, Malignancy/hyperplasia. The answer from the options would be Leiomyoma or Polyp (structural).
Q56. What is the cellular mechanism that initiates the breakdown of the stratum functionalis during menstruation?
Answer: a. Progesterone rise leading to spiral arteriole spasm - it is actually progesterone WITHDRAWAL (fall).
The mechanism: Withdrawal of progesterone → vasoconstriction of spiral arterioles → ischemia → lysosomal enzyme release → endometrial breakdown. Answer: Progesterone withdrawal causes spiral artery vasospasm and ischemia.
Q57. Risk factor of Neonatal Respiratory Distress is NOT:
Answer: e. Asphyxia and stress - actually these ARE risk factors.
NOT a risk factor for neonatal RDS: d. Hypothermia - actually hypothermia can worsen respiratory distress.
The answer is: a. Prematurity Acidosis - wait, prematurity IS the main risk factor.
The answer intended is: b. Hypoxia - also a risk factor.
Among the choices, d. Hypothermia may be considered NOT a PRIMARY risk factor for RDS (surfactant deficiency is the mechanism); however, the most likely intended answer is c. Hypercapnia which is a RESULT not a risk factor.
Q58. What are Neonatal risk factors of neonatal sepsis?
Answer: a. Premature rupture of membrane (PROM/PPROM) - major risk factor.
b. Prematurity - major risk factor.
c. Less immunologic ability to resist infection - correct (immature immune system).
All are risk factors; the question likely asks which is NOT: The exception might be birth by cesarean section (C-section) without labor reduces GBS exposure vs vaginal birth.
Q59. Perinatal period is:
Answer: a. From birth to the 28th day of life (4 weeks after birth) - this is the NEONATAL period.
b. From the 28th completed week of gestation to the 7th day after birth (WHO definition of perinatal period). Answer: b.
Q60. According to contemporary clinical guidelines, at what exact cervical dilation measurement does a patient transition from the latent phase to the active phase of labor?
Answer: 6 cm. Per ACOG (2014 Obstetric Care Consensus), the active phase begins at 6 cm dilation (changed from the previous 4 cm threshold).
Quick Reference Summary Table
| Q | Answer |
|---|---|
| 1 | Prevent endometrial hyperplasia/cancer |
| 2 | External inspection first |
| 3 | a. 7-10 (healthy) |
| 4 | Normal lochia rubra - reassure |
| 5 | Weeks 3-8 (organogenesis window) |
| 6 | GnRH agonist |
| 7 | Progesterone (secretory phase) |
| 8 | 24-28 weeks gestation |
| 9 | b. Adrenal androgen secretion onset |
| 10 | a. Oxygen (heated/humidified) |
| 11 | a. <40-45 mg/dL |
| 12 | Thelarche → Pubarche → Growth spurt → Menarche |
| 13 | Premature ovarian insufficiency |
| 14 | d. Prostaglandins |
| 15 | Copper ions (spermicidal) - NOT pituitary inhibition |
| 16 | High FSH, High LH, Low Estradiol |
| 17 | First 1-2 hours post-placenta = 4th stage |
| 18 | Inhibition of ovulation |
| 19 | Primary: inhibition of ovulation |
| 20 | First void within 24h; low GFR in neonates |
| 21 | b,c,d. Tremors, poor feeding, cyanosis |
| 22 | b. Surfactant (specific for RDS) |
| 23 | Signs of placental separation (3rd stage) |
| 24 | Increased pelvic outlet, gravity assistance |
| 25 | a. Hyperglycemia (IDM = HYPOglycemia) |
| 26 | a. Transient murmurs from incomplete ductus/foramen closure |
| 27 | ~4-5 weeks (serum hCG at ~3-4 weeks) |
| 28 | <36.5°C (WHO neonatal hypothermia) |
| 29 | a. Menorrhagia |
| 30 | Active immunity at birth - FALSE; passive IgG only |
| 31 | Ischial spines (Station 0) |
| 32 | Trophoblast → placenta |
| 33 | vWD/coagulation screen (not karyotype) |
| 34 | Hegar's sign |
| 35 | Cervical mucus thickening |
| 36 | 35-37 weeks |
| 37 | a. 7-10 |
| 38 | Stroke risk - Category 4 contraindication |
| 39 | b. 3-6 (moderate depression) |
| 40 | Radiation = heat loss to surrounding objects (no contact) |
| 41 | Bishop score ~6-7 (favorable) |
| 42 | Anti-D at 28 weeks + postpartum |
| 43 | 6-8 weeks postpartum (non-lactating) |
| 44 | Fetal heartbeat/movement/US visualization = true positive signs |
| 45 | Secondary hypothermia = due to underlying disease |
| 46 | a. Cephalic (soft fundal mass = buttocks) |
| 47 | Internal rotation |
| 48 | Passive (NOT active) maternal immunity via IgG |
| 49 | Complete flexion (chin to chest) |
| 50 | Sagittal suture separates parietals; posterior fontanelle = triangular |
| 51 | Unopposed estrogen (no progesterone due to anovulation) |
| 52 | b. 12 months amenorrhea |
| 53 | Conduction = direct contact heat loss |
| 54 | c. 1-3 = severely depressed |
| 55 | PALM = structural (Polyp, Adenomyosis, Leiomyoma, Malignancy) |
| 56 | Progesterone withdrawal → spiral artery spasm |
| 57 | Hypothermia is NOT a primary risk factor for RDS |
| 58 | PROM, prematurity, immune immaturity = risk factors for neonatal sepsis |
| 59 | b. 28th week gestation to 7th day of life |
| 60 | 6 cm dilation (ACOG 2014) |
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