Please select the eligibility criteria that correspond to the clinical trial below.
Title: Misoprostol in the Treatment of Post Partum Hemorrhage: A Placebo Randomised Controlled Trial in 4 Karachi Hospitals
Brief Summary: Postpartum haemorrhage (PPH) remains a leading cause of maternal mortality, despite treatment with conventional methods. Uncontrolled reports and three small randomised controlled trials have suggested that misoprostol may have an additive effect to routine treatment, and there is a serious danger that this method will be used widely without research to document the effectiveness or risks of this method. In this randomised controlled trial (RCT), we propose to test whether 600 μg of sublingually administered misoprostol in women requiring additional uterotonics after delivery, and after routine syntocinon to all women during or after delivery, has additional effects above the additional conventional uterotonics in reducing PPH. Women with measured blood loss greater than or equal to 500 mls in 4 Karachi hospitals who give consent will be given locally routine treatment for PPH. In addition, they will be enrolled by drawing the next of a series of randomised treatment packs containing misoprostol or placebo. The primary outcome measure will be blood loss greater than or equal to 500 mls after enrolment.


Options:
A: Inclusion Criteria:

All trauma patients with ongoing significant haemorrhage (systolic blood pressure less than 90 mmHg and/or heart rate more than 110 beats per minute), or who are considered to be at risk of significant haemorrhage, and are within 8 hours of the injury, are eligible for trial entry if they appear to be at least 16 years old. Although entry is allowed up to 8 hours from injury, the earlier that patients can be treated the better.

Exclusion Criteria:

The fundamental eligibility criterion is the responsible doctor's 'uncertainty' as to whether or not to use an antifibrinolytic agent in a particular adult with traumatic haemorrhage. Patients for whom the responsible doctor considers there is a clear indication for antifibrinolytic therapy should not be randomised. Likewise, patients for whom there is considered to be a clear contraindication to antifibrinolytic therapy (such as, perhaps, those who have clinical evidence of a thrombotic disseminated intravascular coagulation) should not be randomised. Where the responsible doctor is substantially uncertain as to whether or not to use an antifibrinolytic, all these patients are eligible for randomisation and should be considered for the trial. There are no other pre-specified exclusion criteria
B: Inclusion Criteria:

1. Informed consent from participant.
2. Women who develop PPH defined as bleeding from uterus and/or the birth canal within 24 hours postpartum.
3. Age ≥ 18 years.
4. If vaginal birth: indication of one of the following procedures at the operation theatre with anaesthetic assistance: a) Estimated blood loss ≥ 500 ml and indication of manual removal of placenta or b) Indication of manual exploration of the uterus due to continuous bleeding after the birth of placenta.
5. If birth by Caesarean section: A perioperative blood loss ≥ 1000 ml.

Exclusion Criteria:

1. Patients with known inherited deficiencies of coagulation.
2. Patients in anti-thrombotic treatment prepartum due to increased risk of thrombosis.
3. Patients with a pre-pregnancy weight \<45 kg.
4. Patients who refuse to receive blood transfusion.
C: Inclusion Criteria:

* All women delivering vaginally with clinically diagnosed PPH requiring uterotonics

Exclusion Criteria:

* Refusal to give consent for participation or if the woman is too distressed to give consent
* Woman is not entitled to give informed consent (e.g. minors without a guardian)
* Woman who had a caesarean section
* Delivery is regarded as abortion (gestational age \< 28 weeks)
D: Inclusion Criteria:

* Vaginal delivery
* Postpartum hemorrhage due to suspected uterine atony
* Depending on study group: administration of prophylactic uterotonics in third stage of labor

Exclusion Criteria:

* Known allergy to misoprostol or other prostaglandin
* C-section for current delivery

Answer: C