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5 Cards in this Set
- Front
- Back
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CV change in pregnancy:
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- blood volume increase by 45%
- CO increase 1-1.5L/min - resting heart rate increase 15-20 bpm - BP fall by 10-15 in 2nd trimester and raise again in 3rd - Twave inversion or flat T in II, V1, V2 and Q in II aVF - LAD - IVC obstruction |
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Haematological changes:
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- Dilutional anaemia
- induce leukocytosis - increase ESR - Coagulaion faction increase --> venous thrombosis |
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Resp changes:
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- increase Tv by 40%
- elevated diaphram, decrease residural volume by 25% - resp alkalosis - hypocapnia pCO2 30mmHG - wide mediastinum on CXR |
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Other changes:
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- delay gastro emptying, aspiration risk
- dilated renal pelvic, hyperaemic bladder , more susceptible to trama - increase uterine size, shielding bowel, more susceptible |
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Specific injury ass with pregnancy
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- pelvic fracture, difficult to diagnose retroperitoneal haemorrhage
- placental abruption - uterine rupture - fetomaternal haemorrhage , rhesus sensitization (Kleihauer Betke test) |
