Hii
Do you know about gpsc?
I have passed its prelims for medical officer exam and i have interview after it
Can you give me interview questions for induction pf labor
GPSC medical officer interview questions induction of labour IOL viva
IOL is the artificial stimulation of the onset of uterine contractions before spontaneous labour begins, using pharmacological or mechanical methods, with the aim of achieving vaginal delivery.
IOL initiates labour in a woman who is NOT already in labour. Augmentation stimulates labour that has already started but is progressing inadequately (e.g., slow cervical dilatation).
The Bishop Score assesses cervical favourability before IOL. It predicts the likelihood of successful induction.
| Parameter | 0 | 1 | 2 | 3 |
|---|---|---|---|---|
| Dilation | Closed | 1-2 cm | 3-4 cm | 5+ cm |
| Effacement | 0-30% | 40-50% | 60-70% | 80%+ |
| Station | -3 | -2 | -1, 0 | +1, +2 |
| Position | - | Posterior | Mid | Anterior |
| Consistency | - | Firm | Medium | Soft |
- Add 1 point for: preeclampsia, each prior vaginal delivery
- Subtract 1 point for: postdates, nulliparity, PROM
- Given as IV infusion
- Starting dose: 0.5 to 2 mU/min
- Incremental increase: 1-2 mU/min every 30-60 minutes
- Target: 2-4 contractions in 10 minutes
- Steady-state levels achieved ~40 minutes after starting infusion
- Continuous CTG (FHR + uterine contraction) monitoring is mandatory
Uterine tachysystole = more than 5 contractions in 10 minutes, or contractions lasting >2 minutes. Leads to fetal hypoxia.Management:
- Stop / reduce oxytocin infusion
- Position patient in left lateral
- Give IV fluids
- Administer tocolytic (e.g., terbutaline 0.25 mg SC)
- Oxygen supplementation
- If FHR abnormality persists - emergency LSCS
A digital examination through the cervical os where the examining finger sweeps the amniotic membranes from the lower uterine segment. This releases local prostaglandins and may initiate labour.
- Done at 38-40+ weeks to reduce postdates induction
- Requires cervix to be sufficiently dilated to admit a finger
- Risks: rupture of membranes, infection, bleeding, discomfort
- Overall: safe, especially approaching postdates
- Misoprostol is avoided (increased risk of uterine rupture)
- Mechanical ripening with Foley balloon catheter is preferred
- Oxytocin can be used with caution
- Continuous electronic fetal monitoring mandatory
- Low threshold for caesarean section
- Uterus < 28 weeks: Misoprostol 200-400 mcg vaginally/orally every 4 hours
- Uterus > 28 weeks: Misoprostol 25-50 mcg vaginally/orally every 4 hours OR oxytocin per standard protocol
- With previous LSCS (<28 weeks): misoprostol may be used; (>28 weeks): Foley balloon + oxytocin
- Administer anti-D to Rh-negative mothers
- Offer bereavement support
Artificial Rupture of Membranes (AROM/ARM) - deliberate rupture of the amniotic sac using an amnihook.
- Used alongside pharmacological and mechanical methods to augment IOL
- Requires engaged presenting part to avoid cord prolapse
- Accelerates labour by releasing prostaglandins
| Topic | Key Fact |
|---|---|
| Bishop score for direct oxytocin | ≥ 9 (or ≥ 5) |
| Cervical ripening needed | Score < 5 |
| Misoprostol dose for ripening | 25 mcg vaginally |
| Oxytocin starting dose | 0.5-2 mU/min |
| Target contractions | 2-4 in 10 min |
| AVOID misoprostol in | Previous LSCS |
| FDIU <28 weeks | Misoprostol 200-400 mcg |
| Postdates IOL | Before 42+6 weeks (ACOG) |