O&G SAQs · Critical care — maternal physiology
Physiological changes of pregnancy for critical care — structured SAQ (15 marks)
A 15-mark SAQ on cardiovascular, respiratory and renal adaptations of pregnancy and how they change blood-gas and creatinine interpretation in a critically ill pregnant woman.
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FRANZCOGMRCOGABOG
Prompt
A woman at 32 weeks is admitted to ICU with pneumonia. Describe the cardiovascular, respiratory and renal adaptations of pregnancy relevant to her assessment, and explain how they change the interpretation of her blood gas and creatinine.
Question
A 30-year-old woman at 32 weeks' gestation is admitted to ICU with community-acquired pneumonia. (a) Describe the cardiovascular, respiratory and renal adaptations of pregnancy relevant to her assessment (9 marks). (b) Explain how these adaptations change the interpretation of her blood gas and creatinine (6 marks).[1]
References4ShowHide
- [1]Costantine MM Physiologic and pharmacokinetic changes in pregnancy. Frontiers in pharmacology, 2014.PMID 24772083
- [2]Conrad KP, Davison JM The renal circulation in normal pregnancy and preeclampsia: is there a place for relaxin? American journal of physiology. Renal physiology, 2014.PMID 24647709
- [3]Davison JM Kidney function in pregnant women. American journal of kidney diseases : the official journal of the National Kidney Foundation, 1987.PMID 3554993
- [4]Salles GF, Schlüssel MM, Farias DR, et al. Blood pressure in healthy pregnancy and factors associated with no mid-trimester blood pressure drop: a prospective cohort study. American journal of hypertension, 2015.PMID 25376641