OBSintermediate
In a pregnant patient diagnosed with placenta praevia, identify the specific pelvic examinations and sexual activities that are contraindicated, and explain the primary clinical rationale for these restrictions.
Answer
Digital vaginal examination, rectal examination, and penetrative sexual intercourse are contraindicated because mechanical disruption of the low-lying placenta or cervical os can precipitate severe, potentially life-threatening antepartum haemorrhage.
Explanation
The lecture specifically lists avoiding **vaginal or rectal examination** and **penetrative sexual intercourse** in placenta praevia. These precautions are presented as preventive measures in a condition involving placental implantation in the lower uterine segment, where bleeding may be clinically serious. The response should remain limited to the precautions stated in the material rather than adding procedures or recommendations not supplied.\n\n**Key takeaway:** The lecture identifies vaginal or rectal examination and penetrative intercourse as avoidable exposures in placenta praevia.\n\n**Glossary:** **Placenta praevia**: Placental implantation wholly or partly in the lower uterine segment; **penetrative intercourse**: Sexual intercourse involving penetration.
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