A condition of trial of scar is

Correct Answer: C

Rationale: The correct answer is C: Not more than two previous caesarean section scars. This is because a trial of scar refers to a trial of labor in a woman who has had previous cesarean sections. The guideline typically recommends that a trial of scar should be considered in women with no more than two previous cesarean section scars to reduce the risk of uterine rupture. Choices A, B, and D are incorrect because the estimated fetal weight, availability of a level one hospital, and pelvis size are not specific criteria used to determine eligibility for a trial of scar.

Correct Answer: B

Rationale: The correct answer is B: Hypoglycaemia. Neonates born to diabetic mothers are at risk of hypoglycaemia due to high insulin levels in utero. Feeding the newborn within the first 15 minutes helps maintain blood glucose levels. Hypocalcaemia, hyponatraemia, and hypokalaemia are not typically immediate concerns in neonates born to diabetic mothers.

Correct Answer: B

Rationale: The correct answer is B: Severe asphyxia and prematurity. In eclampsia, maternal hypertension can lead to placental insufficiency, reducing oxygen and nutrient supply to the fetus, resulting in severe asphyxia and premature birth. This is due to the high risk of placental abruption and intrauterine growth restriction. Other choices are incorrect because cerebral hemorrhage and pneumonia (choice A) are not commonly associated with neonatal complications of eclampsia. Fractures and soft tissue trauma (choice C) are not typical complications of eclampsia in neonates. Respiratory distress and hypoglycemia (choice D) are more commonly seen in neonates born to mothers with gestational diabetes, not eclampsia.

Correct Answer: B

Rationale: The correct answer is B: Low acidity levels which favor growth of candida albicans. During pregnancy, hormonal changes can lead to increased vaginal pH, creating a more alkaline environment that promotes the growth of candida albicans, causing vulvovaginitis. Choice A is incorrect as E. coli thrives in alkaline environments. Choice C, existing chronic hypertension, is unrelated to the development of vulvovaginitis. Choice D, lowered osmotic pressure, does not directly influence the growth of candida albicans.

Correct Answer: A

Rationale: The correct answer is A: Epidural hematoma. 1. Sudden rotational injuries can cause tearing of the middle meningeal artery, leading to an epidural hematoma. 2. The hematoma can compress the brain, disrupting the reticular activating system, causing altered consciousness. 3. Uncal herniation (B) involves herniation of the uncus, not rotation-related. 4. Concussion (C) is a mild traumatic brain injury, not directly related to rotational injuries. 5. Contrecoup injury (D) is when the brain impacts the opposite side of the skull due to sudden deceleration, not rotation-induced.

Correct Answer: D

Rationale: The correct answer is D: Fetal macrosomia. Fetal macrosomia, which refers to a baby being significantly larger than average, is an inorganic risk factor for birth injuries because it can lead to difficult delivery and increase the risk of birth trauma such as shoulder dystocia. Maternal short stature (A) is a biological risk factor, not inorganic. Prenatal oligohydramnios (B) refers to low levels of amniotic fluid and is a maternal condition, not an inorganic factor. External cephalic version (C) is a procedure to turn a breech baby and is not a risk factor for birth injuries.

Correct Answer: D

Rationale: The correct answer is D: Postpartum eclampsia. In amniotic fluid embolism, convulsions can mimic postpartum eclampsia due to similarities in symptoms such as seizures and hypertension. However, the key differentiator is the timing of onset - postpartum eclampsia occurs after delivery, while amniotic fluid embolism typically occurs during labor or immediately postpartum. Choices A, B, and C are incorrect as they do not align with the timing and clinical presentation of amniotic fluid embolism. Antepartum eclampsia occurs before delivery, stroke presents with neurological deficits, and pre-existing epilepsy is a chronic condition unrelated to the immediate postpartum period.

Correct Answer: B

Rationale: The correct answer is B: Fetal head retracts against the perineum. This sign indicates possible shoulder dystocia as it suggests the baby's shoulders are impacted and unable to pass through the birth canal. The retraction of the fetal head against the perineum is a classic sign of shoulder dystocia, which requires specific maneuvers to dislodge the shoulders and facilitate delivery. A: Failure of internal rotation of the head is not specific to shoulder dystocia. C: Gentle traction should not be applied in cases of shoulder dystocia as it can worsen the situation. D: The occiput restituting towards the left side is not a sign of shoulder dystocia, as it refers to the rotation of the fetal head during delivery.

Correct Answer: B

Rationale: The correct answer is B: Placental insufficiency. Prolonged pregnancy can lead to decreased placental function, resulting in inadequate oxygen and nutrients for the fetus. This can lead to complications such as intra-uterine growth restriction and fetal distress. Option A (Intra-uterine oligohydramnios) is a consequence of decreased amniotic fluid levels but not directly associated with prolonged pregnancy. Option C (Fetal post-maturity syndrome) refers to the complications seen in a post-term newborn, not maternal risks. Option D (Large for gestational age baby) is a consequence of prolonged pregnancy but does not directly impact maternal health.