OBSbasic
Order the '4 Ts' of postpartum haemorrhage (PPH) aetiology from the most common cause to the least common cause.
Answer
Tone (uterine atony), Trauma (genital tract lacerations), Tissue (retained placenta or membranes), Thrombin (coagulation disorders)
Explanation
The standard sequence is **Tone, Tissue, Trauma, Thrombus**. A memorable sequence helps structure rapid examination and discussion during PPH management. **Key takeaway:** Use the 4 Ts to search systematically for the cause.\n\n**Glossary:** **Aetiology**: the cause or origin of a condition.
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